Nove repo opengl-learning
This commit is contained in:
19
lessons/5. Advanced Lighting/5. Normal Mapping/.vscode/c_cpp_properties.json
vendored
Normal file
19
lessons/5. Advanced Lighting/5. Normal Mapping/.vscode/c_cpp_properties.json
vendored
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@@ -0,0 +1,19 @@
|
||||
{
|
||||
"configurations": [
|
||||
{
|
||||
"name": "Linux",
|
||||
"includePath": [
|
||||
"${workspaceFolder}/../../../include",
|
||||
"${workspaceFolder}/src/include",
|
||||
"${workspaceFolder}/build"
|
||||
],
|
||||
"defines": [],
|
||||
"compilerPath": "/bin/gcc",
|
||||
"cStandard": "c11",
|
||||
"cppStandard": "c++14",
|
||||
"intelliSenseMode": "gcc-x64",
|
||||
"configurationProvider": "ms-vscode.cmake-tools"
|
||||
}
|
||||
],
|
||||
"version": 4
|
||||
}
|
||||
95
lessons/5. Advanced Lighting/5. Normal Mapping/.vscode/settings.json
vendored
Normal file
95
lessons/5. Advanced Lighting/5. Normal Mapping/.vscode/settings.json
vendored
Normal file
@@ -0,0 +1,95 @@
|
||||
{
|
||||
"files.associations": {
|
||||
"ctime": "cpp",
|
||||
"chrono": "cpp",
|
||||
"condition_variable": "cpp",
|
||||
"mutex": "cpp",
|
||||
"thread": "cpp",
|
||||
"cctype": "cpp",
|
||||
"clocale": "cpp",
|
||||
"cmath": "cpp",
|
||||
"csignal": "cpp",
|
||||
"cstdarg": "cpp",
|
||||
"cstddef": "cpp",
|
||||
"cstdio": "cpp",
|
||||
"cstdlib": "cpp",
|
||||
"cstring": "cpp",
|
||||
"cwchar": "cpp",
|
||||
"cwctype": "cpp",
|
||||
"array": "cpp",
|
||||
"atomic": "cpp",
|
||||
"hash_map": "cpp",
|
||||
"strstream": "cpp",
|
||||
"bit": "cpp",
|
||||
"*.tcc": "cpp",
|
||||
"bitset": "cpp",
|
||||
"cinttypes": "cpp",
|
||||
"codecvt": "cpp",
|
||||
"compare": "cpp",
|
||||
"complex": "cpp",
|
||||
"concepts": "cpp",
|
||||
"cstdint": "cpp",
|
||||
"deque": "cpp",
|
||||
"list": "cpp",
|
||||
"map": "cpp",
|
||||
"set": "cpp",
|
||||
"unordered_map": "cpp",
|
||||
"unordered_set": "cpp",
|
||||
"vector": "cpp",
|
||||
"exception": "cpp",
|
||||
"algorithm": "cpp",
|
||||
"functional": "cpp",
|
||||
"iterator": "cpp",
|
||||
"memory": "cpp",
|
||||
"memory_resource": "cpp",
|
||||
"numeric": "cpp",
|
||||
"optional": "cpp",
|
||||
"random": "cpp",
|
||||
"ratio": "cpp",
|
||||
"string": "cpp",
|
||||
"string_view": "cpp",
|
||||
"system_error": "cpp",
|
||||
"tuple": "cpp",
|
||||
"type_traits": "cpp",
|
||||
"utility": "cpp",
|
||||
"fstream": "cpp",
|
||||
"initializer_list": "cpp",
|
||||
"iomanip": "cpp",
|
||||
"iosfwd": "cpp",
|
||||
"iostream": "cpp",
|
||||
"istream": "cpp",
|
||||
"limits": "cpp",
|
||||
"new": "cpp",
|
||||
"ostream": "cpp",
|
||||
"ranges": "cpp",
|
||||
"sstream": "cpp",
|
||||
"stdexcept": "cpp",
|
||||
"stop_token": "cpp",
|
||||
"streambuf": "cpp",
|
||||
"cfenv": "cpp",
|
||||
"typeindex": "cpp",
|
||||
"typeinfo": "cpp",
|
||||
"valarray": "cpp",
|
||||
"variant": "cpp",
|
||||
"__bit_reference": "cpp",
|
||||
"__config": "cpp",
|
||||
"__debug": "cpp",
|
||||
"__errc": "cpp",
|
||||
"__functional_base": "cpp",
|
||||
"__hash_table": "cpp",
|
||||
"__locale": "cpp",
|
||||
"__mutex_base": "cpp",
|
||||
"__node_handle": "cpp",
|
||||
"__nullptr": "cpp",
|
||||
"__split_buffer": "cpp",
|
||||
"__string": "cpp",
|
||||
"__threading_support": "cpp",
|
||||
"__tree": "cpp",
|
||||
"__tuple": "cpp",
|
||||
"ios": "cpp",
|
||||
"locale": "cpp",
|
||||
"queue": "cpp",
|
||||
"stack": "cpp"
|
||||
},
|
||||
"cmake.configureOnOpen": true
|
||||
}
|
||||
@@ -0,0 +1,45 @@
|
||||
cmake_minimum_required(VERSION 3.13.4)
|
||||
|
||||
project("main")
|
||||
set(CMAKE_CXX_STANDARD 11)
|
||||
|
||||
add_subdirectory("src")
|
||||
|
||||
target_include_directories("${PROJECT_NAME}"
|
||||
PUBLIC "${CMAKE_SOURCE_DIR}/../../../include"
|
||||
)
|
||||
target_link_directories("${PROJECT_NAME}"
|
||||
PRIVATE "${CMAKE_SOURCE_DIR}/../../../lib"
|
||||
)
|
||||
|
||||
target_link_libraries("${PROJECT_NAME}"
|
||||
camera
|
||||
shader
|
||||
framebuffer
|
||||
glml
|
||||
)
|
||||
if (MSVC)
|
||||
set(AssimpLibs
|
||||
debug Debug/assimp-vc142-mtd optimized Release/assimp-vc142-mt
|
||||
debug Debug/IrrXMLd optimized Release/IrrXML
|
||||
debug Debug/zlibstaticd optimized Release/zlibstatic)
|
||||
set (glfw3Lib debug Debug/glfw3d optimized Release/glfw3)
|
||||
target_link_libraries("${PROJECT_NAME}"
|
||||
opengl32
|
||||
${AssimpLibs}
|
||||
${glfw3Lib}
|
||||
)
|
||||
elseif (UNIX)
|
||||
target_link_libraries("${PROJECT_NAME}"
|
||||
glfw
|
||||
dl
|
||||
m
|
||||
Xi
|
||||
pthread
|
||||
Xrandr
|
||||
X11
|
||||
GL
|
||||
GLU
|
||||
assimp
|
||||
)
|
||||
endif()
|
||||
3
lessons/5. Advanced Lighting/5. Normal Mapping/build.sh
Normal file
3
lessons/5. Advanced Lighting/5. Normal Mapping/build.sh
Normal file
@@ -0,0 +1,3 @@
|
||||
#!/bin/bash
|
||||
|
||||
cmake --build build
|
||||
@@ -0,0 +1,3 @@
|
||||
#!/bin/bash
|
||||
|
||||
cmake -S . -B build
|
||||
5
lessons/5. Advanced Lighting/5. Normal Mapping/run.sh
Normal file
5
lessons/5. Advanced Lighting/5. Normal Mapping/run.sh
Normal file
@@ -0,0 +1,5 @@
|
||||
#!/bin/bash
|
||||
|
||||
cd build/src/
|
||||
exec ./main
|
||||
#cd ../../
|
||||
@@ -0,0 +1,34 @@
|
||||
add_library(camera Camera.cpp include/Camera.h)
|
||||
add_library(shader Shader.cpp include/Shader.h)
|
||||
add_library(glml Model.cpp include/Model.h Mesh.cpp include/Mesh.h)
|
||||
add_library(framebuffer Framebuffer.cpp include/Framebuffer.h)
|
||||
|
||||
set(REPO_ROOT "${CMAKE_SOURCE_DIR}/../../..")
|
||||
set(PROJECT_DIR "${CMAKE_SOURCE_DIR}")
|
||||
set(SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
|
||||
set(BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}")
|
||||
|
||||
include_directories(
|
||||
"${CMAKE_CURRENT_BINARY_DIR}"
|
||||
"${REPO_ROOT}/include"
|
||||
"${SOURCE_DIR}/include"
|
||||
)
|
||||
|
||||
configure_file(config.h.in config.h @ONLY)
|
||||
|
||||
file(GLOB SHADERS
|
||||
"shaders/*.frag"
|
||||
"shaders/*.vert"
|
||||
"shaders/*.geom"
|
||||
)
|
||||
|
||||
add_executable("${PROJECT_NAME}"
|
||||
main.cpp
|
||||
"${REPO_ROOT}/glad.c"
|
||||
"${REPO_ROOT}/stb_image.cpp"
|
||||
"${REPO_ROOT}/stb_image_write.cpp"
|
||||
include/DebugColors.h
|
||||
"${BINARY_DIR}/config.h"
|
||||
"${SHADERS}"
|
||||
)
|
||||
source_group(TREE ${SOURCE_DIR} PREFIX "" FILES ${SHADERS})
|
||||
@@ -0,0 +1,83 @@
|
||||
#include "Camera.h"
|
||||
#include <glm/gtc/matrix_transform.hpp>
|
||||
|
||||
Camera::Camera(glm::vec3 position, glm::vec3 worldUp, glm::vec3 worldFront, float yaw, float pitch) : Front(glm::vec3(0.0f, 0.0f, -1.0f)), MovementSpeed(2.5f), MouseSensitivity(0.1f), FOV(45.0f), Mode(CAM_FLOAT)
|
||||
{
|
||||
this->Position = position;
|
||||
this->WorldUp = worldUp;
|
||||
this->Yaw = yaw;
|
||||
this->Pitch = pitch;
|
||||
this->WorldFront = worldFront;
|
||||
this->WorldRight = glm::normalize(glm::cross(this->WorldFront, this->WorldUp));
|
||||
|
||||
updateCameraVectors();
|
||||
}
|
||||
void Camera::updateCameraVectors()
|
||||
{
|
||||
glm::vec3 front;
|
||||
front.x = cos(glm::radians(Yaw)) * cos(glm::radians(Pitch));
|
||||
front.y = sin(glm::radians(Pitch));
|
||||
front.z = sin(glm::radians(Yaw)) * cos(glm::radians(Pitch));
|
||||
Front = glm::normalize(front);
|
||||
|
||||
Right = glm::normalize(glm::cross(Front, WorldUp));
|
||||
Up = glm::normalize(glm::cross(Right, Front));
|
||||
}
|
||||
glm::mat4 Camera::getViewMatrix()
|
||||
{
|
||||
return glm::lookAt(Position, Position + Front, WorldUp);
|
||||
}
|
||||
void Camera::ProccessKeyboard(camera_movement direction, float deltaTime)
|
||||
{
|
||||
switch (direction)
|
||||
{
|
||||
case CAM_FORWARD:
|
||||
Position += deltaTime * MovementSpeed * Front;
|
||||
break;
|
||||
case CAM_BACKWARD:
|
||||
Position -= deltaTime * MovementSpeed * Front;
|
||||
break;
|
||||
case CAM_LEFT:
|
||||
Position -= deltaTime * MovementSpeed * Right;
|
||||
break;
|
||||
case CAM_RIGHT:
|
||||
Position += deltaTime * MovementSpeed * Right;
|
||||
break;
|
||||
case CAM_UP:
|
||||
Position += deltaTime * MovementSpeed * WorldUp;
|
||||
break;
|
||||
case CAM_DOWN:
|
||||
Position -= deltaTime * MovementSpeed * WorldUp;
|
||||
break;
|
||||
}
|
||||
}
|
||||
void Camera::ProccessMouse(float xoffset, float yoffset, bool constrainPitch)
|
||||
{
|
||||
xoffset *= MouseSensitivity;
|
||||
yoffset *= MouseSensitivity;
|
||||
|
||||
Yaw = fmodf(Yaw + xoffset, 360.0f);
|
||||
Pitch += yoffset;
|
||||
|
||||
if (constrainPitch)
|
||||
{
|
||||
if (Pitch > 89.0f)
|
||||
Pitch = 89.0f;
|
||||
else if (Pitch < -89.0f)
|
||||
Pitch = -89.0f;
|
||||
}
|
||||
|
||||
updateCameraVectors();
|
||||
}
|
||||
void Camera::ProccessScroll(float yoffset)
|
||||
{
|
||||
FOV -= yoffset;
|
||||
if (FOV < 1.0f)
|
||||
FOV = 1.0f;
|
||||
else if (FOV > 45.0f)
|
||||
FOV = 45.0f;
|
||||
}
|
||||
void Camera::SetCameraMode(camera_mode mode)
|
||||
{
|
||||
Mode = mode;
|
||||
}
|
||||
@@ -0,0 +1,409 @@
|
||||
#include "Framebuffer.h"
|
||||
#include <glad/glad.h>
|
||||
#include <iostream>
|
||||
#include <vector>
|
||||
#include "DebugColors.h"
|
||||
#include <stb_image_write.h>
|
||||
#include <ctime>
|
||||
|
||||
int checkFramebufferStatus()
|
||||
{
|
||||
int status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
|
||||
|
||||
switch (status)
|
||||
{
|
||||
case GL_FRAMEBUFFER_COMPLETE:
|
||||
return 0;
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, "Framebuffer.h: " DC_ERROR " code: %#04x\n", (int)status);
|
||||
return -1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
Framebuffer::Framebuffer(const int& width, const int& height)
|
||||
{
|
||||
glGenFramebuffers(1, &ID);
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
|
||||
glGenTextures(1, &ColorBuffer);
|
||||
glBindTexture(GL_TEXTURE_2D, ColorBuffer);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
|
||||
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, ColorBuffer, 0);
|
||||
|
||||
glGenRenderbuffers(1, &DepthStencilBuffer);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, width, height);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, 0);
|
||||
|
||||
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
|
||||
if (checkFramebufferStatus() != 0)
|
||||
{
|
||||
glDeleteRenderbuffers(1, &DepthStencilBuffer);
|
||||
glDeleteTextures(1, &ColorBuffer);
|
||||
glDeleteFramebuffers(1, &ID);
|
||||
std::cerr << "Framebuffer.h: " DC_ERROR " Could not create framebuffer object." << std::endl;
|
||||
ID = 0;
|
||||
return;
|
||||
}
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
||||
|
||||
this->width = width;
|
||||
this->height = height;
|
||||
}
|
||||
Framebuffer::~Framebuffer()
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
void Framebuffer::destroy()
|
||||
{
|
||||
glDeleteRenderbuffers(1, &DepthStencilBuffer);
|
||||
glDeleteTextures(1, &ColorBuffer);
|
||||
glDeleteFramebuffers(1, &ID);
|
||||
}
|
||||
void Framebuffer::UpdateSize(const unsigned int& newWidth, const unsigned int& newHeight)
|
||||
{
|
||||
if (!checkBind())
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, ColorBuffer);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, newWidth, newHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
|
||||
glDeleteRenderbuffers(1, &DepthStencilBuffer);
|
||||
glGenRenderbuffers(1, &DepthStencilBuffer);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, newWidth, newHeight);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, 0);
|
||||
|
||||
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
}
|
||||
void Framebuffer::Use()
|
||||
{
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
}
|
||||
void Framebuffer::UseDefault()
|
||||
{
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
||||
}
|
||||
void Framebuffer::clearBuffers(float r, float g, float b, float a)
|
||||
{
|
||||
if (!checkBind())
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
glClearColor(r, g, b, a);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
|
||||
}
|
||||
void Framebuffer::clearColorBuffer(float r, float g, float b, float a)
|
||||
{
|
||||
if (!checkBind())
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
glClearColor(r, g, b, a);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
}
|
||||
void Framebuffer::clearDepthBuffer()
|
||||
{
|
||||
if (!checkBind())
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
glClear(GL_DEPTH_BUFFER_BIT);
|
||||
}
|
||||
void Framebuffer::clearStencilBuffer()
|
||||
{
|
||||
if (!checkBind())
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
glClear(GL_STENCIL_BUFFER_BIT);
|
||||
}
|
||||
void Framebuffer::clearDepthStencilBuffer()
|
||||
{
|
||||
if (!checkBind())
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
|
||||
}
|
||||
unsigned int Framebuffer::getWidth()
|
||||
{
|
||||
return width;
|
||||
}
|
||||
unsigned int Framebuffer::getHeight()
|
||||
{
|
||||
return height;
|
||||
}
|
||||
bool Framebuffer::checkBind()
|
||||
{
|
||||
int id = 0;
|
||||
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &id);
|
||||
if ((unsigned int)id == ID)
|
||||
return true;
|
||||
return false;
|
||||
}
|
||||
unsigned int Framebuffer::getColorBuffer()
|
||||
{
|
||||
return ColorBuffer;
|
||||
}
|
||||
unsigned int Framebuffer::getDepthSnectilBuffer()
|
||||
{
|
||||
return DepthStencilBuffer;
|
||||
}
|
||||
std::string Framebuffer::screenshot(std::string path)
|
||||
{
|
||||
int id = 0;
|
||||
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &id);
|
||||
|
||||
unsigned char *data = new unsigned char[(int)width * (int)height * 4];
|
||||
this->Use();
|
||||
glReadBuffer(GL_COLOR_ATTACHMENT0);
|
||||
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
||||
stbi_flip_vertically_on_write(1);
|
||||
std::string scr_name = path + "/" + getScreenshotName();
|
||||
stbi_write_png(scr_name.c_str(), width, height, 4, data, 4 * width);
|
||||
delete data;
|
||||
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, (unsigned int)id);
|
||||
|
||||
return scr_name;
|
||||
}
|
||||
|
||||
MSFramebuffer::MSFramebuffer(const int& width, const int& height, const unsigned int samples)
|
||||
: Nsamples(samples), intermediateFBO(NULL)
|
||||
{
|
||||
glGenFramebuffers(1, &ID);
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
|
||||
glGenTextures(1, &ColorBuffer);
|
||||
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, ColorBuffer);
|
||||
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, samples, GL_RGB, width, height, GL_TRUE);
|
||||
glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, 0);
|
||||
|
||||
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, ColorBuffer, 0);
|
||||
|
||||
glGenRenderbuffers(1, &DepthStencilBuffer);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
glRenderbufferStorageMultisample(GL_RENDERBUFFER, samples, GL_DEPTH24_STENCIL8, width, height);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, 0);
|
||||
|
||||
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
|
||||
if (checkFramebufferStatus() != 0)
|
||||
{
|
||||
glDeleteRenderbuffers(1, &DepthStencilBuffer);
|
||||
glDeleteTextures(1, &ColorBuffer);
|
||||
glDeleteFramebuffers(1, &ID);
|
||||
std::cerr << "Framebuffer.h: " DC_ERROR " Could not create multisampled framebuffer object." << std::endl;
|
||||
ID = 0;
|
||||
return;
|
||||
}
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
||||
|
||||
this->width = width;
|
||||
this->height = height;
|
||||
|
||||
intermediateFBO = new Framebuffer(width, height);
|
||||
}
|
||||
MSFramebuffer::~MSFramebuffer()
|
||||
{
|
||||
destroy();
|
||||
delete intermediateFBO;
|
||||
}
|
||||
std::string MSFramebuffer::screenshot(std::string path)
|
||||
{
|
||||
int id = 0;
|
||||
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &id);
|
||||
|
||||
unsigned char *data = new unsigned char[width * height * 4];
|
||||
getColorBuffer();
|
||||
intermediateFBO->Use();
|
||||
glReadBuffer(GL_COLOR_ATTACHMENT0);
|
||||
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
||||
stbi_flip_vertically_on_write(1);
|
||||
std::string scr_name = path + "/" + getScreenshotName();
|
||||
stbi_write_png(scr_name.c_str(), width, height, 4, data, 4 * width);
|
||||
delete data;
|
||||
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, (unsigned int)id);
|
||||
|
||||
return scr_name;
|
||||
}
|
||||
void MSFramebuffer::UpdateSize(const unsigned int& newWidth, const unsigned int& newHeight)
|
||||
{
|
||||
if (!checkBind())
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, ColorBuffer);
|
||||
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, Nsamples, GL_RGBA, newWidth, newHeight, GL_TRUE);
|
||||
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, 0);
|
||||
|
||||
glDeleteRenderbuffers(1, &DepthStencilBuffer);
|
||||
glGenRenderbuffers(1, &DepthStencilBuffer);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
glRenderbufferStorageMultisample(GL_RENDERBUFFER, Nsamples, GL_DEPTH24_STENCIL8, newWidth, newHeight);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, 0);
|
||||
|
||||
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, DepthStencilBuffer);
|
||||
}
|
||||
unsigned int MSFramebuffer::getColorBuffer()
|
||||
{
|
||||
glBindFramebuffer(GL_READ_FRAMEBUFFER, ID);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, intermediateFBO->ID);
|
||||
glBlitFramebuffer(0, 0, width, height, 0, 0, width, height, GL_COLOR_BUFFER_BIT, GL_NEAREST);
|
||||
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
|
||||
|
||||
return intermediateFBO->getColorBuffer();
|
||||
}
|
||||
unsigned int MSFramebuffer::getDepthSnectilBuffer()
|
||||
{
|
||||
glBindFramebuffer(GL_READ_FRAMEBUFFER, ID);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, intermediateFBO->ID);
|
||||
glBlitFramebuffer(0, 0, width, height, 0, 0, width, height, GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_NEAREST);
|
||||
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
|
||||
|
||||
return intermediateFBO->getDepthSnectilBuffer();
|
||||
}
|
||||
unsigned int MSFramebuffer::getColorBufferMS()
|
||||
{
|
||||
return ColorBuffer;
|
||||
}
|
||||
|
||||
/* Static functions */
|
||||
void Framebuffer::clearAllBuffers(float r, float g, float b, float a)
|
||||
{
|
||||
glClearColor(r, g, b, a);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
}
|
||||
std::string Framebuffer::getScreenshotName()
|
||||
{
|
||||
time_t tim = time(NULL);
|
||||
struct tm *ltm = localtime(&tim);
|
||||
|
||||
char buf[50];
|
||||
snprintf(buf, sizeof(buf), "screenshot_%i%02i%02i_%02i%02i%02i.png",
|
||||
ltm->tm_year + 1900, ltm->tm_mon + 1, ltm->tm_mday, ltm->tm_hour, ltm->tm_min, ltm->tm_sec);
|
||||
return std::string(buf);
|
||||
}
|
||||
std::string Framebuffer::screenshot_defaultFBO(unsigned int width, unsigned int height, std::string path)
|
||||
{
|
||||
int id = 0;
|
||||
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &id);
|
||||
|
||||
uint8_t *data = new uint8_t[width * height * 4];
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
||||
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
||||
stbi_flip_vertically_on_write(1);
|
||||
std::string scr_name = path + "/" + getScreenshotName();
|
||||
stbi_write_png(scr_name.c_str(), width, height, 4, data, 4 * width);
|
||||
delete[] data;
|
||||
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, (unsigned int)id);
|
||||
return scr_name;
|
||||
}
|
||||
|
||||
/* Depthmap Framebuffer */
|
||||
DepthmapFramebuffer::DepthmapFramebuffer(const Resolution& resolution) : resolution(resolution), depth_texture(0), ID(0)
|
||||
{
|
||||
glGenFramebuffers(1, &ID);
|
||||
glGenTextures(1, &depth_texture);
|
||||
glBindTexture(GL_TEXTURE_2D, depth_texture);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, resolution.Width, resolution.Height, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
|
||||
float borderColor[]{ 1.0f, 1.0f, 1.0f, 1.0f };
|
||||
glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderColor);
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depth_texture, 0);
|
||||
glDrawBuffer(GL_NONE);
|
||||
glReadBuffer(GL_NONE);
|
||||
|
||||
if (checkFramebufferStatus() != 0)
|
||||
{
|
||||
glDeleteFramebuffers(1, &ID);
|
||||
glDeleteTextures(1, &depth_texture);
|
||||
std::cerr << "Framebuffer.h " << DC_ERROR << " Could not create Depthmap Framebuffer object.\n";
|
||||
ID = 0;
|
||||
return;
|
||||
}
|
||||
}
|
||||
DepthmapFramebuffer::DepthmapFramebuffer(const unsigned int& width, const unsigned int& height) :
|
||||
DepthmapFramebuffer(Resolution{width, height})
|
||||
{}
|
||||
DepthmapFramebuffer::~DepthmapFramebuffer()
|
||||
{
|
||||
glDeleteFramebuffers(1, &ID);
|
||||
glDeleteTextures(1, &depth_texture);
|
||||
}
|
||||
void DepthmapFramebuffer::Use() const
|
||||
{
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
}
|
||||
void DepthmapFramebuffer::Use(GLenum target) const
|
||||
{
|
||||
glBindFramebuffer(target, ID);
|
||||
}
|
||||
unsigned int DepthmapFramebuffer::GetDepthTexture() const
|
||||
{
|
||||
return depth_texture;
|
||||
}
|
||||
void DepthmapFramebuffer::ClearDepthBuffer() const
|
||||
{
|
||||
Use();
|
||||
glClear(GL_DEPTH_BUFFER_BIT);
|
||||
}
|
||||
|
||||
/* DepthCubemap Framebuffer */
|
||||
DepthCubeFramebuffer::DepthCubeFramebuffer(int width, int height) : Width(width), Height(height)
|
||||
{
|
||||
init();
|
||||
}
|
||||
DepthCubeFramebuffer::~DepthCubeFramebuffer()
|
||||
{
|
||||
glDeleteFramebuffers(1, &ID);
|
||||
glDeleteTextures(1, &depthCubemap);
|
||||
}
|
||||
void DepthCubeFramebuffer::init()
|
||||
{
|
||||
glGenTextures(1, &depthCubemap);
|
||||
glBindTexture(GL_TEXTURE_CUBE_MAP, depthCubemap);
|
||||
for (unsigned int i = 0; i < 6; i++)
|
||||
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_DEPTH_COMPONENT, Width, Height, 0,
|
||||
GL_DEPTH_COMPONENT, GL_FLOAT, 0);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
||||
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
|
||||
|
||||
glGenFramebuffers(1, &ID);
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, ID);
|
||||
glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, depthCubemap, 0);
|
||||
glDrawBuffer(GL_NONE);
|
||||
glReadBuffer(GL_NONE);
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
||||
|
||||
if (checkFramebufferStatus() != 0)
|
||||
{
|
||||
ID = 0;
|
||||
}
|
||||
}
|
||||
unsigned int DepthCubeFramebuffer::getDepthCubemap() const
|
||||
{
|
||||
return depthCubemap;
|
||||
}
|
||||
void DepthCubeFramebuffer::clearDepth() const
|
||||
{
|
||||
glClear(GL_DEPTH_BUFFER_BIT);
|
||||
}
|
||||
void DepthCubeFramebuffer::Use() const
|
||||
{
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
||||
}
|
||||
67
lessons/5. Advanced Lighting/5. Normal Mapping/src/Mesh.cpp
Normal file
67
lessons/5. Advanced Lighting/5. Normal Mapping/src/Mesh.cpp
Normal file
@@ -0,0 +1,67 @@
|
||||
#include <glad/glad.h>
|
||||
#include "Mesh.h"
|
||||
|
||||
using namespace glml;
|
||||
|
||||
Mesh::Mesh(const std::vector<Vertex>& vertices,
|
||||
const std::vector<unsigned int>& indices,
|
||||
const std::vector<Texture>& textures) : vertices(vertices), indices(indices), textures(textures)
|
||||
{
|
||||
setupMesh();
|
||||
}
|
||||
|
||||
void Mesh::setupMesh()
|
||||
{
|
||||
glGenVertexArrays(1, &VAO);
|
||||
glGenBuffers(1, &VBO);
|
||||
glGenBuffers(1, &EBO);
|
||||
|
||||
glBindVertexArray(VAO);
|
||||
|
||||
glBindBuffer(GL_ARRAY_BUFFER, VBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), &vertices[0], GL_STATIC_DRAW);
|
||||
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned int), &indices[0], GL_STATIC_DRAW);
|
||||
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const void*)offsetof(Vertex, Position));
|
||||
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const void*)offsetof(Vertex, Normal));
|
||||
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const void*)offsetof(Vertex, TexCoord));
|
||||
glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const void*)offsetof(Vertex, Tangent));
|
||||
glVertexAttribPointer(4, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const void*)offsetof(Vertex, Bitangent));
|
||||
for (int i = 0; i < 5; i++)
|
||||
glEnableVertexAttribArray(i);
|
||||
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
void Mesh::Draw(const Shader& shader) const
|
||||
{
|
||||
unsigned int diffNr = 0;
|
||||
unsigned int specNr = 0;
|
||||
unsigned int normNr = 0;
|
||||
unsigned int heigNr = 0;
|
||||
|
||||
for (int i = 0; i < textures.size(); i++)
|
||||
{
|
||||
std::string name = TextureTypeStrings[static_cast<size_t>(textures[i].type)];
|
||||
|
||||
if (textures[i].type == TextureType::diffuse)
|
||||
name += std::to_string(diffNr++);
|
||||
else if (textures[i].type == TextureType::specular)
|
||||
name += std::to_string(specNr++);
|
||||
else if (textures[i].type == TextureType::normal)
|
||||
name += std::to_string(normNr++);
|
||||
else if (textures[i].type == TextureType::height)
|
||||
name += std::to_string(heigNr++);
|
||||
|
||||
glActiveTexture(GL_TEXTURE0 + i);
|
||||
shader.setInt("material." + name, i);
|
||||
glBindTexture(GL_TEXTURE_2D, textures[i].id);
|
||||
}
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
|
||||
glBindVertexArray(VAO);
|
||||
glDrawElements(GL_TRIANGLES, indices.size(), GL_UNSIGNED_INT, 0);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
200
lessons/5. Advanced Lighting/5. Normal Mapping/src/Model.cpp
Normal file
200
lessons/5. Advanced Lighting/5. Normal Mapping/src/Model.cpp
Normal file
@@ -0,0 +1,200 @@
|
||||
#include <glad/glad.h>
|
||||
#include <assimp/Importer.hpp>
|
||||
#include <assimp/postprocess.h>
|
||||
#include <iostream>
|
||||
#include <stb_image.h>
|
||||
#include "Model.h"
|
||||
#include "DebugColors.h"
|
||||
|
||||
using namespace glml;
|
||||
|
||||
Model::Model(const std::string path, bool flip_textures, bool sRGB_diffuse) :
|
||||
sRGB_diffuse(sRGB_diffuse), flip_textures(flip_textures)
|
||||
{
|
||||
loadModel(path);
|
||||
}
|
||||
void Model::Draw(const Shader& shader) const
|
||||
{
|
||||
for (int i = 0; i < meshes.size(); i++)
|
||||
meshes[i].Draw(shader);
|
||||
}
|
||||
void Model::loadModel(const std::string path)
|
||||
{
|
||||
Assimp::Importer importer;
|
||||
const aiScene* scene = importer.ReadFile(path, aiProcess_Triangulate | aiProcess_FlipUVs | aiProcess_CalcTangentSpace);
|
||||
|
||||
if (!scene || scene->mFlags & AI_SCENE_FLAGS_INCOMPLETE || !scene->mRootNode)
|
||||
{
|
||||
std::cerr << DC_ERROR "[ASSIMP] Model '" << path << "' not loaded.\n" << importer.GetErrorString() << std::endl;
|
||||
return;
|
||||
}
|
||||
directory = path.substr(0, path.find_last_of('/'));
|
||||
|
||||
processNode(scene->mRootNode, scene);
|
||||
}
|
||||
void Model::processNode(aiNode* node, const aiScene* scene)
|
||||
{
|
||||
unsigned int i;
|
||||
for (i = 0; i < node->mNumMeshes; i++)
|
||||
{
|
||||
aiMesh* mesh = scene->mMeshes[node->mMeshes[i]];
|
||||
meshes.push_back(processMesh(mesh, scene));
|
||||
}
|
||||
for (i = 0; i < node->mNumChildren; i++)
|
||||
processNode(node->mChildren[i], scene);
|
||||
}
|
||||
Mesh Model::processMesh(aiMesh* mesh, const aiScene* scene)
|
||||
{
|
||||
std::vector<Vertex> vertices;
|
||||
std::vector<unsigned int> indices;
|
||||
std::vector<Texture> textures;
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < mesh->mNumVertices; i++)
|
||||
{
|
||||
Vertex vertex;
|
||||
glm::vec3 v;
|
||||
v.x = mesh->mVertices[i].x;
|
||||
v.y = mesh->mVertices[i].y;
|
||||
v.z = mesh->mVertices[i].z;
|
||||
vertex.Position = v;
|
||||
|
||||
if (mesh->mNormals != NULL)
|
||||
{
|
||||
v.x = mesh->mNormals[i].x;
|
||||
v.y = mesh->mNormals[i].y;
|
||||
v.z = mesh->mNormals[i].z;
|
||||
vertex.Normal = v;
|
||||
}
|
||||
|
||||
if (mesh->mTangents != NULL)
|
||||
{
|
||||
v.x = mesh->mTangents[i].x;
|
||||
v.y = mesh->mTangents[i].y;
|
||||
v.z = mesh->mTangents[i].z;
|
||||
vertex.Tangent = v;
|
||||
}
|
||||
if (mesh->mBitangents != NULL)
|
||||
{
|
||||
v.x = mesh->mBitangents[i].x;
|
||||
v.y = mesh->mBitangents[i].y;
|
||||
v.z = mesh->mBitangents[i].z;
|
||||
vertex.Bitangent = v;
|
||||
}
|
||||
|
||||
if (mesh->mTextureCoords[0]) { // does the mesh contains texture coordinates?
|
||||
glm::vec2 vec;
|
||||
vec.x = mesh->mTextureCoords[0][i].x;
|
||||
vec.y = mesh->mTextureCoords[0][i].y;
|
||||
vertex.TexCoord = vec;
|
||||
}
|
||||
else {
|
||||
vertex.TexCoord = glm::vec2(0.0f);
|
||||
}
|
||||
vertices.push_back(vertex);
|
||||
}
|
||||
for (i = 0; i < mesh->mNumFaces; i++)
|
||||
{
|
||||
aiFace face = mesh->mFaces[i];
|
||||
for (unsigned int j = 0; j < face.mNumIndices; j++)
|
||||
indices.push_back(face.mIndices[j]);
|
||||
}
|
||||
if (mesh->mMaterialIndex >= 0)
|
||||
{
|
||||
aiMaterial* mat = scene->mMaterials[mesh->mMaterialIndex];
|
||||
std::vector<Texture> diffuseMaps = loadMaterialTextures(mat, aiTextureType_DIFFUSE, TextureType::diffuse);
|
||||
textures.insert(textures.end(), diffuseMaps.begin(), diffuseMaps.end());
|
||||
|
||||
std::vector<Texture> specularMaps = loadMaterialTextures(mat, aiTextureType_SPECULAR, TextureType::specular);
|
||||
textures.insert(textures.end(), specularMaps.begin(), specularMaps.end());
|
||||
|
||||
std::vector<Texture> normalMaps = loadMaterialTextures(mat, aiTextureType_NORMALS, TextureType::normal);
|
||||
textures.insert(textures.end(), normalMaps.begin(), normalMaps.end());
|
||||
|
||||
std::vector<Texture> heightMaps = loadMaterialTextures(mat, aiTextureType_HEIGHT, TextureType::height);
|
||||
textures.insert(textures.end(), heightMaps.begin(), heightMaps.end());
|
||||
}
|
||||
return Mesh(vertices, indices, textures);
|
||||
}
|
||||
std::vector<Texture> Model::loadMaterialTextures(aiMaterial* mat, aiTextureType type, TextureType glmlType)
|
||||
{
|
||||
std::vector<Texture> textures;
|
||||
bool sRGB = false;
|
||||
if (sRGB_diffuse && glmlType == TextureType::diffuse)
|
||||
sRGB = true;
|
||||
|
||||
for (unsigned int i = 0; i < mat->GetTextureCount(type); i++)
|
||||
{
|
||||
aiString str;
|
||||
mat->GetTexture(type, i, &str);
|
||||
bool loaded = false;
|
||||
|
||||
for (int j = 0; j < textures_loaded.size(); j++)
|
||||
{
|
||||
if (std::strcmp(textures_loaded[j].path.data(), str.C_Str()) == 0)
|
||||
{
|
||||
textures.push_back(textures_loaded[j]);
|
||||
loaded = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!loaded)
|
||||
{
|
||||
Texture texture;
|
||||
texture.id = load_texture(directory + '/' + str.C_Str(), flip_textures, sRGB);
|
||||
texture.type = glmlType;
|
||||
texture.path = str.C_Str();
|
||||
textures.push_back(texture);
|
||||
textures_loaded.push_back(texture);
|
||||
}
|
||||
}
|
||||
return textures;
|
||||
}
|
||||
|
||||
static unsigned int glml::load_texture(std::string path, bool flip, bool sRGB, GLint wrapS, GLint wrapT)
|
||||
{
|
||||
return glml::load_texture(path.c_str(), flip, sRGB, wrapS, wrapT);
|
||||
}
|
||||
static unsigned int glml::load_texture(const char* path, bool flip, bool sRGB, GLint wrapS, GLint wrapT)
|
||||
{
|
||||
unsigned int texture = 0;
|
||||
int width, height, nrChannels, format, intFormat;
|
||||
stbi_set_flip_vertically_on_load(flip);
|
||||
unsigned char* data = stbi_load(path, &width, &height, &nrChannels, 0); // load image to the array of bytes (char = 1 byte)
|
||||
|
||||
switch (nrChannels)
|
||||
{
|
||||
case 4: format = GL_RGBA;
|
||||
if (sRGB) intFormat = GL_SRGB_ALPHA;
|
||||
else intFormat = GL_RGBA;
|
||||
break;
|
||||
case 3: format = GL_RGB;
|
||||
if (sRGB) intFormat = GL_SRGB;
|
||||
else intFormat = GL_RGB;
|
||||
break;
|
||||
case 2: format = intFormat = GL_RED; break;
|
||||
default: format = intFormat = GL_RGB; break;
|
||||
}
|
||||
|
||||
if (data) // data != NULL
|
||||
{
|
||||
glGenTextures(1, &texture);
|
||||
glBindTexture(GL_TEXTURE_2D, texture);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, intFormat, width, height, 0, format, GL_UNSIGNED_BYTE, data); // generates texture
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
}
|
||||
else {
|
||||
std::cerr << DC_WARNING " Could not load texture '" << path << "'\n";
|
||||
}
|
||||
stbi_image_free(data);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
|
||||
return texture;
|
||||
}
|
||||
179
lessons/5. Advanced Lighting/5. Normal Mapping/src/Shader.cpp
Normal file
179
lessons/5. Advanced Lighting/5. Normal Mapping/src/Shader.cpp
Normal file
@@ -0,0 +1,179 @@
|
||||
#include "Shader.h"
|
||||
#include <iostream>
|
||||
#include <fstream>
|
||||
#include <sstream>
|
||||
#include <glad/glad.h>
|
||||
#include <glm/gtc/type_ptr.hpp>
|
||||
#include "DebugColors.h"
|
||||
|
||||
Shader::Shader(const char* vertexShaderSourcePath, const char* fragmentShaderSourcePath, const char* geometryShaderSourcePath, bool directSource)
|
||||
{
|
||||
const char* vertexSource;
|
||||
const char* fragmentSource;
|
||||
const char* geometrySource;
|
||||
std::string v, f, g;
|
||||
if (!directSource)
|
||||
{
|
||||
v = readFile(vertexShaderSourcePath);
|
||||
f = readFile(fragmentShaderSourcePath);
|
||||
|
||||
if (v == "" || f == "") {
|
||||
this->Program = 0;
|
||||
return;
|
||||
}
|
||||
vertexSource = v.c_str();
|
||||
fragmentSource = f.c_str();
|
||||
|
||||
if (geometryShaderSourcePath != NULL)
|
||||
{
|
||||
g = readFile(geometryShaderSourcePath);
|
||||
|
||||
if (g == "") {
|
||||
this->Program = 0;
|
||||
return;
|
||||
}
|
||||
geometrySource = g.c_str();
|
||||
}
|
||||
else
|
||||
geometrySource = NULL;
|
||||
}
|
||||
else
|
||||
{
|
||||
vertexSource = vertexShaderSourcePath;
|
||||
fragmentSource = fragmentShaderSourcePath;
|
||||
geometrySource = geometryShaderSourcePath;
|
||||
}
|
||||
|
||||
int success;
|
||||
char infoLog[512];
|
||||
|
||||
unsigned int vertexShader = glCreateShader(GL_VERTEX_SHADER);
|
||||
glShaderSource(vertexShader, 1, &vertexSource, NULL);
|
||||
glCompileShader(vertexShader);
|
||||
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
|
||||
if (!success)
|
||||
{
|
||||
glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
|
||||
std::cerr << "Shader.h: " DC_WARNING " Vertex shader compilation failed!\n";
|
||||
std::cerr << "shader.h: " DC_WARNING " Path: " << vertexShaderSourcePath << '\n' << infoLog << std::endl;
|
||||
this->Program = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
unsigned int fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
glShaderSource(fragmentShader, 1, &fragmentSource, NULL);
|
||||
glCompileShader(fragmentShader);
|
||||
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
|
||||
if (!success)
|
||||
{
|
||||
glGetShaderInfoLog(fragmentShader, 512, NULL, infoLog);
|
||||
std::cerr << "Shader.h: " DC_WARNING " Fragment shader compilation failed!\n";
|
||||
std::cerr << "shader.h: " DC_WARNING " Path: " << fragmentShaderSourcePath << '\n' << infoLog << std::endl;
|
||||
this->Program = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
unsigned int geometryShader;
|
||||
if (geometrySource)
|
||||
{
|
||||
geometryShader = glCreateShader(GL_GEOMETRY_SHADER);
|
||||
glShaderSource(geometryShader, 1, &geometrySource, NULL);
|
||||
glCompileShader(geometryShader);
|
||||
glGetShaderiv(geometryShader, GL_COMPILE_STATUS, &success);
|
||||
if (!success)
|
||||
{
|
||||
glGetShaderInfoLog(geometryShader, 512, NULL, infoLog);
|
||||
std::cerr << "Shader.h: " DC_WARNING " Geometry shader compilation failed!\n";
|
||||
std::cerr << "Shader.h: " DC_WARNING " Path: " << geometryShaderSourcePath;
|
||||
std::cerr << std::endl << infoLog << std::endl;
|
||||
this->Program = 0;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
Program = glCreateProgram();
|
||||
glAttachShader(Program, vertexShader);
|
||||
glAttachShader(Program, fragmentShader);
|
||||
if (geometrySource)
|
||||
glAttachShader(Program, geometryShader);
|
||||
glLinkProgram(Program);
|
||||
glGetProgramiv(Program, GL_LINK_STATUS, &success);
|
||||
if (!success)
|
||||
{
|
||||
glGetProgramInfoLog(Program, 512, NULL, infoLog);
|
||||
std::cerr << "shader.h: " DC_ERROR " Program linking failed\n" << infoLog << std::endl;
|
||||
this->Program = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
glDeleteShader(vertexShader);
|
||||
glDeleteShader(fragmentShader);
|
||||
}
|
||||
Shader::Shader(std::string vertexShaderSourcePath,
|
||||
std::string fragmentShaderSourcePath,
|
||||
std::string geometryShaderSource,
|
||||
bool directSource) : Shader(vertexShaderSourcePath.c_str(), fragmentShaderSourcePath.c_str(), geometryShaderSource.c_str(), directSource)
|
||||
{
|
||||
}
|
||||
Shader::~Shader()
|
||||
{
|
||||
glDeleteProgram(Program);
|
||||
}
|
||||
|
||||
std::string Shader::readFile(const char* path)
|
||||
{
|
||||
std::ifstream ifs(path); // input file stream
|
||||
|
||||
if (ifs.fail())
|
||||
{
|
||||
std::cout << "shader.h: " DC_ERROR " Could not open file '" << path << "'\n";
|
||||
return "";
|
||||
}
|
||||
|
||||
std::stringstream buffer;
|
||||
buffer << ifs.rdbuf();
|
||||
std::string out = buffer.str();
|
||||
ifs.close();
|
||||
|
||||
return out;
|
||||
}
|
||||
void Shader::Use() const
|
||||
{
|
||||
glUseProgram(Program);
|
||||
}
|
||||
void Shader::setBool(const std::string name, bool value) const
|
||||
{
|
||||
glUniform1i(glGetUniformLocation(Program, name.c_str()), value ? 1 : 0);
|
||||
}
|
||||
void Shader::setFloat(const std::string name, float value) const
|
||||
{
|
||||
glUniform1f(glGetUniformLocation(Program, name.c_str()), value);
|
||||
}
|
||||
void Shader::setInt(const std::string name, int value) const
|
||||
{
|
||||
glUniform1i(glGetUniformLocation(Program, name.c_str()), value);
|
||||
}
|
||||
void Shader::setMat4(const std::string name, glm::mat4 value) const
|
||||
{
|
||||
glUniformMatrix4fv(glGetUniformLocation(Program, name.c_str()), 1, GL_FALSE, glm::value_ptr(value));
|
||||
}
|
||||
void Shader::setVec3(const std::string name, glm::vec3 value) const
|
||||
{
|
||||
setVec3(name, value.x, value.y, value.z);
|
||||
}
|
||||
void Shader::setVec3(const std::string name, float v0, float v1, float v2) const
|
||||
{
|
||||
glUniform3f(glGetUniformLocation(Program, name.c_str()), v0, v1, v2);
|
||||
}
|
||||
void Shader::setMat3(const std::string name, glm::mat3 value) const
|
||||
{
|
||||
glUniformMatrix3fv(glGetUniformLocation(Program, name.c_str()), 1, GL_FALSE, glm::value_ptr(value));
|
||||
}
|
||||
void Shader::setVec2(const std::string name, float v0, float v1) const
|
||||
{
|
||||
glUniform2f(glGetUniformLocation(Program, name.c_str()), v0, v1);
|
||||
}
|
||||
void Shader::setVec2(const std::string name, glm::vec2 v) const
|
||||
{
|
||||
setVec2(name, v.x, v.y);
|
||||
}
|
||||
@@ -0,0 +1,4 @@
|
||||
#cmakedefine REPO_ROOT "@REPO_ROOT@"
|
||||
#cmakedefine PROJECT_DIR "@PROJECT_DIR@"
|
||||
#cmakedefine SOURCE_DIR "@SOURCE_DIR@"
|
||||
#cmakedefine BINARY_DIR "@BINARY_DIR@"
|
||||
@@ -0,0 +1,54 @@
|
||||
#pragma once
|
||||
#include <glm/glm.hpp>
|
||||
|
||||
enum camera_movement {
|
||||
CAM_FORWARD,
|
||||
CAM_BACKWARD,
|
||||
CAM_LEFT,
|
||||
CAM_RIGHT,
|
||||
CAM_UP,
|
||||
CAM_DOWN
|
||||
};
|
||||
|
||||
enum camera_mode {
|
||||
CAM_FLOAT,
|
||||
CAM_MINECRAFT
|
||||
};
|
||||
|
||||
class Camera
|
||||
{
|
||||
public:
|
||||
float FOV;
|
||||
float MovementSpeed;
|
||||
float MouseSensitivity;
|
||||
float Yaw; // vlevo vpravo
|
||||
float Pitch; // nahoru dolu
|
||||
|
||||
camera_mode Mode;
|
||||
|
||||
glm::vec3 Position;
|
||||
glm::vec3 Front;
|
||||
glm::vec3 Right;
|
||||
glm::vec3 Up;
|
||||
glm::vec3 WorldUp;
|
||||
glm::vec3 WorldRight;
|
||||
glm::vec3 WorldFront;
|
||||
|
||||
Camera(glm::vec3 position = glm::vec3(0.0f, 0.0f, 0.0f),
|
||||
glm::vec3 worldUp = glm::vec3(0.0f, 1.0f, 0.0f),
|
||||
glm::vec3 worldFront = glm::vec3(0.0f, 0.0f, -1.0),
|
||||
float yaw = -90.0f, float pitch = 0);
|
||||
|
||||
glm::mat4 getViewMatrix();
|
||||
void ProccessKeyboard(camera_movement direction, float deltaTime);
|
||||
void ProccessMouse(float xoffset, float yoffset, bool constrainPitch = true);
|
||||
void ProccessScroll(float yoffset);
|
||||
void SetCameraMode(camera_mode mode);
|
||||
|
||||
private:
|
||||
float lastY;
|
||||
float lastX;
|
||||
|
||||
void updateCameraVectors();
|
||||
};
|
||||
|
||||
@@ -0,0 +1,11 @@
|
||||
#pragma once
|
||||
#define DC_RED "\x1b[31m"
|
||||
#define DC_GREEN "\x1b[32m"
|
||||
#define DC_YELLOW "\x1b[33m"
|
||||
#define DC_CYAN "\x1b[36m"
|
||||
#define DC_MAGNETA "\x1b[35m"
|
||||
#define DC_DEFAULT "\x1b[0m"
|
||||
#define DC_ERROR DC_RED "[ERROR]" DC_DEFAULT
|
||||
#define DC_SUCCESS DC_GREEN "[SUCCESS]" DC_DEFAULT
|
||||
#define DC_INFO DC_CYAN "[INFO]" DC_DEFAULT
|
||||
#define DC_WARNING DC_YELLOW "[WARNING]" DC_DEFAULT
|
||||
@@ -0,0 +1,113 @@
|
||||
#pragma once
|
||||
#include <string>
|
||||
#include <glad/glad.h>
|
||||
#include "config.h"
|
||||
class Framebuffer
|
||||
{
|
||||
public:
|
||||
/* id of this framebuffer */
|
||||
unsigned int ID;
|
||||
|
||||
Framebuffer(const int& width, const int& height);
|
||||
virtual ~Framebuffer();
|
||||
|
||||
/* updates width and height of buffers */
|
||||
virtual void UpdateSize(const unsigned int& newWidth, const unsigned int& newHeight);
|
||||
/* sets opengl to use this framebuffer */
|
||||
void Use();
|
||||
/* sets opengl to use default buffer */
|
||||
void UseDefault();
|
||||
void clearBuffers(float r = 0.0f, float g = 0.0f, float b = 0.0f, float a = 1.0f);
|
||||
void clearColorBuffer(float r = 0.0f, float g = 0.0f, float b = 0.0f, float a = 1.0f);
|
||||
void clearDepthBuffer();
|
||||
void clearStencilBuffer();
|
||||
void clearDepthStencilBuffer();
|
||||
virtual unsigned int getWidth();
|
||||
virtual unsigned int getHeight();
|
||||
virtual unsigned int getColorBuffer();
|
||||
virtual unsigned int getDepthSnectilBuffer();
|
||||
static std::string getScreenshotName();
|
||||
/* saves image of framebuffers color buffer */
|
||||
virtual std::string screenshot(std::string path = BINARY_DIR);
|
||||
|
||||
static void clearAllBuffers(float r = 0.0f, float g = 0.0f, float b = 0.0f, float a = 1.0f);
|
||||
/* saves image of default framebuffer */
|
||||
static std::string screenshot_defaultFBO(unsigned int width, unsigned int height, std::string path = BINARY_DIR);
|
||||
|
||||
protected:
|
||||
Framebuffer() : width(0), height(0), ColorBuffer(0), ID(0), DepthStencilBuffer(0) {}
|
||||
unsigned int width;
|
||||
unsigned int height;
|
||||
|
||||
/* opengl texture2D */
|
||||
unsigned int ColorBuffer;
|
||||
/* renderbuffer depth 24 bits stencil 8 bits */
|
||||
unsigned int DepthStencilBuffer;
|
||||
|
||||
virtual bool checkBind();
|
||||
virtual void destroy();
|
||||
};
|
||||
|
||||
/* Multisampled Framebuffer */
|
||||
class MSFramebuffer : public Framebuffer
|
||||
{
|
||||
public:
|
||||
/* Number of samples */
|
||||
const unsigned int Nsamples;
|
||||
|
||||
MSFramebuffer(const int& width, const int& height, const unsigned int samples);
|
||||
virtual ~MSFramebuffer();
|
||||
|
||||
std::string screenshot(std::string = BINARY_DIR) override;
|
||||
void UpdateSize(const unsigned int& newWidth, const unsigned int& newHeight) override;
|
||||
/* Returns resolved color buffer */
|
||||
unsigned int getColorBuffer() override;
|
||||
unsigned int getDepthSnectilBuffer() override;
|
||||
/* Reurns unresolved colorbuffer. ( with multisample informations ) */
|
||||
unsigned int getColorBufferMS();
|
||||
protected:
|
||||
MSFramebuffer() : Nsamples(0), intermediateFBO(NULL) {}
|
||||
private:
|
||||
Framebuffer* intermediateFBO;
|
||||
};
|
||||
|
||||
struct Resolution
|
||||
{
|
||||
unsigned int Width;
|
||||
unsigned int Height;
|
||||
};
|
||||
class DepthmapFramebuffer
|
||||
{
|
||||
public:
|
||||
unsigned int ID;
|
||||
Resolution resolution;
|
||||
|
||||
DepthmapFramebuffer(const Resolution& resolution);
|
||||
DepthmapFramebuffer(const unsigned int& width, const unsigned int& height);
|
||||
~DepthmapFramebuffer();
|
||||
|
||||
void Use() const;
|
||||
void Use(GLenum target) const;
|
||||
unsigned int GetDepthTexture() const;
|
||||
void ClearDepthBuffer() const;
|
||||
private:
|
||||
unsigned int depth_texture;
|
||||
};
|
||||
|
||||
class DepthCubeFramebuffer
|
||||
{
|
||||
unsigned int depthCubemap;
|
||||
|
||||
void init();
|
||||
|
||||
public:
|
||||
unsigned int ID;
|
||||
const int Width, Height;
|
||||
|
||||
DepthCubeFramebuffer(int width, int height);
|
||||
~DepthCubeFramebuffer();
|
||||
|
||||
unsigned int getDepthCubemap() const;
|
||||
void clearDepth() const;
|
||||
void Use() const;
|
||||
};
|
||||
@@ -0,0 +1,53 @@
|
||||
#pragma once
|
||||
#include <glm/glm.hpp>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
#include "Shader.h"
|
||||
|
||||
namespace glml
|
||||
{
|
||||
static const std::string TextureTypeStrings[] = {
|
||||
"texture_diffuse",
|
||||
"texture_specular",
|
||||
"texture_normal",
|
||||
"texture_height"
|
||||
};
|
||||
enum class TextureType : size_t
|
||||
{
|
||||
diffuse = 0,
|
||||
specular = 1,
|
||||
normal = 2,
|
||||
height = 3
|
||||
};
|
||||
|
||||
struct Vertex {
|
||||
glm::vec3 Position;
|
||||
glm::vec3 Normal;
|
||||
glm::vec2 TexCoord;
|
||||
glm::vec3 Tangent;
|
||||
glm::vec3 Bitangent;
|
||||
};
|
||||
struct Texture {
|
||||
unsigned int id;
|
||||
TextureType type;
|
||||
std::string path;
|
||||
};
|
||||
|
||||
class Mesh {
|
||||
public:
|
||||
unsigned int VAO;
|
||||
|
||||
std::vector<Vertex> vertices;
|
||||
std::vector<unsigned int> indices;
|
||||
std::vector<Texture> textures;
|
||||
|
||||
Mesh(const std::vector<Vertex>& vertices, const std::vector<unsigned int>& indices, const std::vector<Texture>& textures);
|
||||
|
||||
void Draw(const Shader& shader) const;
|
||||
private:
|
||||
unsigned int VBO, EBO;
|
||||
|
||||
void setupMesh();
|
||||
};
|
||||
};
|
||||
|
||||
@@ -0,0 +1,48 @@
|
||||
#pragma once
|
||||
#include <string>
|
||||
#include "Mesh.h"
|
||||
#include <vector>
|
||||
#include "Shader.h"
|
||||
#include <assimp/scene.h>
|
||||
|
||||
/*
|
||||
Vertex attributes are expected as follows:
|
||||
0. Vertex position
|
||||
1. Vertex normal
|
||||
2. Vertex texture coordinate
|
||||
3. Vertex tangent
|
||||
4. Vertex bitangent
|
||||
In the Fragment Shader there must be at least
|
||||
struct Material
|
||||
{
|
||||
sampler2D texture_diffuse0;
|
||||
}
|
||||
uniform Material material;
|
||||
*/
|
||||
|
||||
namespace glml
|
||||
{
|
||||
class Model {
|
||||
public:
|
||||
std::vector<Mesh> meshes;
|
||||
std::vector<Texture> textures_loaded;
|
||||
|
||||
/* sRGB_diffuse: when true, save diffuse textures as sRGB textures*/
|
||||
Model(const std::string path, bool flip_textures = false, bool sRGB_diffuse = false);
|
||||
|
||||
void Draw(const Shader& shader) const;
|
||||
private:
|
||||
// model data
|
||||
std::string directory;
|
||||
const bool sRGB_diffuse;
|
||||
const bool flip_textures;
|
||||
|
||||
void loadModel(const std::string path);
|
||||
void processNode(aiNode* node, const aiScene* scene);
|
||||
Mesh processMesh(aiMesh* mesh, const aiScene* scene);
|
||||
std::vector<Texture> loadMaterialTextures(aiMaterial* mat, aiTextureType type, TextureType glmlType);
|
||||
};
|
||||
static unsigned int load_texture(const char* path, bool flip = true, bool sRGB = true, GLint wrapS = GL_REPEAT, GLint wrapT = GL_REPEAT);
|
||||
static unsigned int load_texture(std::string path, bool flip = true, bool sRGB = true, GLint wrapS = GL_REPEAT, GLint wrapT = GL_REPEAT);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,29 @@
|
||||
#pragma once
|
||||
#include <string>
|
||||
#include <glm/glm.hpp>
|
||||
|
||||
class Shader
|
||||
{
|
||||
public:
|
||||
unsigned int Program;
|
||||
|
||||
Shader(const char* vertexShaderSourcePath, const char* fragmentShaderSourcePath, const char* geometryShaderSource = NULL, bool directSource = false);
|
||||
Shader(std::string vertexShaderSourcePath, std::string fragmentShaderSourcePath, std::string geometryShaderSource = NULL, bool directSource = false);
|
||||
~Shader();
|
||||
|
||||
|
||||
void Use() const;
|
||||
|
||||
void setBool(const std::string name, bool value) const;
|
||||
void setFloat(const std::string name, float value) const;
|
||||
void setInt(const std::string name, int value) const;
|
||||
void setMat4(const std::string name, glm::mat4 value) const;
|
||||
void setVec3(const std::string name, glm::vec3 value) const;
|
||||
void setVec3(const std::string name, float v0, float v1, float v2) const;
|
||||
void setVec2(const std::string name, float v0, float v1) const;
|
||||
void setVec2(const std::string name, glm::vec2 v) const;
|
||||
void setMat3(const std::string name, glm::mat3 value) const;
|
||||
|
||||
static std::string readFile(const char* path);
|
||||
};
|
||||
|
||||
588
lessons/5. Advanced Lighting/5. Normal Mapping/src/main.cpp
Normal file
588
lessons/5. Advanced Lighting/5. Normal Mapping/src/main.cpp
Normal file
@@ -0,0 +1,588 @@
|
||||
#include <glad/glad.h>
|
||||
#include <GLFW/glfw3.h>
|
||||
#include <iostream>
|
||||
#include <stb_image.h>
|
||||
#include <glm/glm.hpp>
|
||||
#include <glm/gtc/matrix_transform.hpp>
|
||||
#include <glm/gtc/type_ptr.hpp>
|
||||
#include <vector>
|
||||
#include <algorithm>
|
||||
#include <stb_image_write.h>
|
||||
#include <ctime>
|
||||
#include <thread>
|
||||
#include <chrono>
|
||||
#include "Shader.h"
|
||||
#include "Camera.h"
|
||||
#include "Framebuffer.h"
|
||||
#include "Model.h"
|
||||
#include "DebugColors.h"
|
||||
#include "config.h" // in cmake build directory (need to run configure.sh first)
|
||||
#if _WIN32
|
||||
#include <Windows.h>
|
||||
#endif
|
||||
|
||||
#define WINDOW_NAME "5. Normal Mapping"
|
||||
#define TEXTURES_DIR REPO_ROOT "/textures/"
|
||||
#define MODELS_DIR REPO_ROOT "/models/"
|
||||
#define SHADERS_DIR SOURCE_DIR "/shaders/"
|
||||
#define _IsUnused __attribute__((__unused__)) // linux only
|
||||
|
||||
using namespace std;
|
||||
typedef unsigned int uint;
|
||||
|
||||
//STBIWDEF int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes);
|
||||
|
||||
// Global Constants
|
||||
// ...
|
||||
// Global Variables
|
||||
GLFWwindow* window;
|
||||
int WINDOW_WIDTH = 800;
|
||||
int WINDOW_HEIGHT = 600;
|
||||
Camera myCamera(glm::vec3(0.0f, 0.0f, 3.0f));
|
||||
float deltaTime = 0.0f;
|
||||
float lastFrame = 0.0f;
|
||||
float lastX = 400;
|
||||
float lastY = 300;
|
||||
bool firstmouse = true;
|
||||
|
||||
/* pointer to Framebuffer object that is used for screenshot */
|
||||
/* if NULL default framebuffer is used */
|
||||
Framebuffer *screenshot_FBO_ptr = NULL;
|
||||
|
||||
uint8_t init(void);
|
||||
void framebuffersize_callback(GLFWwindow* window, int width, int height);
|
||||
void mouse_callback(GLFWwindow* window, double xpos, double ypos);
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
|
||||
void proccessInput(GLFWwindow* window);
|
||||
unsigned int load_texture(const char* path, bool flip = true, bool sRGB = true, GLint wrapS = GL_REPEAT, GLint wrapT = GL_REPEAT);
|
||||
unsigned int load_cubemap(vector<string> faces);
|
||||
void draw_cube(void);
|
||||
void draw_floor(void);
|
||||
void draw_quad(void);
|
||||
void draw_scene(const Shader* shader, bool lightCube);
|
||||
|
||||
Shader* shader = NULL;
|
||||
Shader* quadShader = NULL;
|
||||
Shader* basicShader = NULL;
|
||||
|
||||
glml::Model* cyborg = NULL;
|
||||
|
||||
glm::vec3 lightPos(0.0f);
|
||||
glm::vec3 lightColor(1.0f, 1.0f, 1.0f);
|
||||
bool cullFaces = false;
|
||||
bool normalMapping = false;
|
||||
GLint polygonMode = GL_FILL;
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
#if _WIN32
|
||||
SetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
|
||||
#endif
|
||||
|
||||
if (init() != 0)
|
||||
return -1;
|
||||
|
||||
shader = new Shader(SHADERS_DIR "shader.vert", SHADERS_DIR "shader.frag");
|
||||
quadShader = new Shader(SHADERS_DIR "quadShader.vert", SHADERS_DIR "quadShader.frag");
|
||||
basicShader = new Shader(SHADERS_DIR "basicShader.vert", SHADERS_DIR "basicShader.frag");
|
||||
|
||||
if (!shader->Program || !quadShader->Program || !basicShader->Program)
|
||||
{
|
||||
std::cerr << DC_ERROR " Could not create shader programs!" << std::endl;
|
||||
std::cerr << DC_INFO " Exiting...\n";
|
||||
return -2;
|
||||
}
|
||||
|
||||
MSFramebuffer fbOffScreen(WINDOW_WIDTH, WINDOW_HEIGHT, 4);
|
||||
if (fbOffScreen.ID == 0)
|
||||
return -1;
|
||||
screenshot_FBO_ptr = &fbOffScreen;
|
||||
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
cullFaces = true;
|
||||
//glEnable(GL_MULTISAMPLE);
|
||||
/* ------------------ MAIN loop ------------------ */
|
||||
while (!glfwWindowShouldClose(window)) {
|
||||
float currentFrame = (float)glfwGetTime();
|
||||
deltaTime = currentFrame - lastFrame; // cas jak dlouho trval posledni frame
|
||||
lastFrame = currentFrame; // cas kdy zacal tento frame
|
||||
// input ...
|
||||
proccessInput(window);
|
||||
// rendering commands here ...
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
if (cullFaces)
|
||||
glEnable(GL_CULL_FACE);
|
||||
|
||||
// 1. Render pass: render to fbOffscreen framebuffer
|
||||
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
|
||||
glPolygonMode(GL_FRONT_AND_BACK, polygonMode);
|
||||
fbOffScreen.Use();
|
||||
fbOffScreen.clearBuffers(0.006f, 0.006f, 0.006f, 1.0f);
|
||||
|
||||
shader->Use();
|
||||
draw_scene(shader, true);
|
||||
|
||||
// 2. Render pass: render quad on screen
|
||||
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
||||
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
||||
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
|
||||
glDisable(GL_DEPTH_TEST);
|
||||
glDisable(GL_CULL_FACE);
|
||||
|
||||
quadShader->Use();
|
||||
quadShader->setInt("texture0", 0);
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_2D, fbOffScreen.getColorBuffer());
|
||||
draw_quad();
|
||||
|
||||
//glDisable(GL_FRAMEBUFFER_SRGB);
|
||||
|
||||
// check and calls events and swap the buffers
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
|
||||
}
|
||||
|
||||
glfwTerminate();
|
||||
|
||||
delete(shader);
|
||||
delete(quadShader);
|
||||
delete(basicShader);
|
||||
delete(cyborg);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
uint8_t init(void) {
|
||||
// init of glfw window
|
||||
glfwInit();
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
|
||||
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
||||
window = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, WINDOW_NAME, NULL, NULL);
|
||||
if (window == NULL) {
|
||||
cerr << DC_ERROR " Failed to create glfw window" << endl;
|
||||
glfwTerminate();
|
||||
return 1;
|
||||
}
|
||||
glfwMakeContextCurrent(window);
|
||||
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
|
||||
|
||||
// init of GLAD
|
||||
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
|
||||
cerr << DC_ERROR " Failed to initialize GLAD" << endl;
|
||||
}
|
||||
|
||||
glfwSetFramebufferSizeCallback(window, framebuffersize_callback);
|
||||
glfwSetCursorPosCallback(window, mouse_callback);
|
||||
glfwSetScrollCallback(window, scroll_callback);
|
||||
return 0;
|
||||
}
|
||||
void framebuffersize_callback(GLFWwindow* window, int width, int height)
|
||||
{
|
||||
glViewport(0, 0, width, height);
|
||||
WINDOW_HEIGHT = height;
|
||||
WINDOW_WIDTH = width;
|
||||
}
|
||||
void proccessInput(GLFWwindow* window)
|
||||
{
|
||||
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS) // Escape
|
||||
glfwSetWindowShouldClose(window, true);
|
||||
if (glfwGetKey(window, GLFW_KEY_F1) == GLFW_PRESS) // F1
|
||||
{
|
||||
if (polygonMode != GL_FILL)
|
||||
{
|
||||
std::cout << DC_INFO << " Polygon mode: " << DC_YELLOW << "fill" << DC_DEFAULT << "\n";
|
||||
polygonMode = GL_FILL;
|
||||
}
|
||||
}
|
||||
else if (glfwGetKey(window, GLFW_KEY_F2) == GLFW_PRESS) // F2
|
||||
{
|
||||
if (polygonMode != GL_LINE)
|
||||
{
|
||||
std::cout << DC_INFO << " Polygon mode: " << DC_YELLOW << "line" << DC_DEFAULT << "\n";
|
||||
polygonMode = GL_LINE;
|
||||
}
|
||||
}
|
||||
if (glfwGetKey(window, GLFW_KEY_F3) == GLFW_PRESS) // F3
|
||||
{
|
||||
std::string path;
|
||||
if (screenshot_FBO_ptr == NULL)
|
||||
path = Framebuffer::screenshot_defaultFBO(WINDOW_WIDTH, WINDOW_HEIGHT);
|
||||
else
|
||||
path = screenshot_FBO_ptr->screenshot();
|
||||
|
||||
std::this_thread::sleep_for(std::chrono::seconds(1));
|
||||
std::cout << DC_INFO << " Screenshot saved to '" DC_MAGNETA << path << DC_DEFAULT "'\n";
|
||||
}
|
||||
//if (glfwGetKey(window, GLFW_KEY_F4) == GLFW_PRESS); // F4
|
||||
if (glfwGetKey(window, GLFW_KEY_1) == GLFW_PRESS) // 1
|
||||
{
|
||||
if (!normalMapping)
|
||||
std::cout << DC_INFO << " Normal mapping: " << DC_GREEN << "on" << DC_DEFAULT << "\n";
|
||||
normalMapping = true;
|
||||
}
|
||||
else if (glfwGetKey(window, GLFW_KEY_2) == GLFW_PRESS) // 2
|
||||
{
|
||||
if (normalMapping)
|
||||
std::cout << DC_INFO << " Normal mapping: " << DC_RED << "off" << DC_DEFAULT << "\n";
|
||||
normalMapping = false;
|
||||
}
|
||||
/* -------------------- Movement -------------------- */
|
||||
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS) // w
|
||||
myCamera.ProccessKeyboard(CAM_FORWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS) // S
|
||||
myCamera.ProccessKeyboard(CAM_BACKWARD, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS) // D
|
||||
myCamera.ProccessKeyboard(CAM_RIGHT, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS) // A
|
||||
myCamera.ProccessKeyboard(CAM_LEFT, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS) // Left-shift
|
||||
myCamera.ProccessKeyboard(CAM_DOWN, deltaTime);
|
||||
if (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS) // Space
|
||||
myCamera.ProccessKeyboard(CAM_UP, deltaTime);
|
||||
|
||||
}
|
||||
void mouse_callback(GLFWwindow* window, double xpos, double ypos)
|
||||
{
|
||||
if (firstmouse) {
|
||||
lastX = (float)xpos;
|
||||
lastY = (float)ypos;
|
||||
firstmouse = false;
|
||||
}
|
||||
|
||||
float xoffset = (float)xpos - lastX;
|
||||
float yoffset = lastY - (float)ypos;
|
||||
lastX = (float)xpos;
|
||||
lastY = (float)ypos;
|
||||
|
||||
myCamera.ProccessMouse(xoffset, yoffset);
|
||||
}
|
||||
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset)
|
||||
{
|
||||
myCamera.ProccessScroll((float)yoffset);
|
||||
}
|
||||
unsigned int load_texture(const char* path, bool flip, bool sRGB, GLint wrapS, GLint wrapT)
|
||||
{
|
||||
unsigned int texture = 0;
|
||||
int width, height, nrChannels, format, intFormat;
|
||||
stbi_set_flip_vertically_on_load(flip);
|
||||
unsigned char* data = stbi_load(path, &width, &height, &nrChannels, 0); // load image to the array of bytes (char = 1 byte)
|
||||
|
||||
switch (nrChannels)
|
||||
{
|
||||
case 4: format = GL_RGBA;
|
||||
if (sRGB) intFormat = GL_SRGB_ALPHA;
|
||||
else intFormat = GL_RGBA;
|
||||
break;
|
||||
case 3: format = GL_RGB;
|
||||
if (sRGB) intFormat = GL_SRGB;
|
||||
else intFormat = GL_RGB;
|
||||
break;
|
||||
case 2: format = intFormat = GL_RED; break;
|
||||
default: format = intFormat = GL_RGB; break;
|
||||
}
|
||||
|
||||
if (data) // data != NULL
|
||||
{
|
||||
glGenTextures(1, &texture);
|
||||
glBindTexture(GL_TEXTURE_2D, texture);
|
||||
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrapS);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrapT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, intFormat, width, height, 0, format, GL_UNSIGNED_BYTE, data); // generates texture
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
}
|
||||
else {
|
||||
cerr << DC_WARNING " Could not load texture '" << path << "'\n";
|
||||
}
|
||||
stbi_image_free(data);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
|
||||
return texture;
|
||||
}
|
||||
unsigned int load_cubemap(vector<string> faces)
|
||||
{
|
||||
unsigned int textureID;
|
||||
glGenTextures(1, &textureID);
|
||||
glBindTexture(GL_TEXTURE_CUBE_MAP, textureID);
|
||||
|
||||
int width, height, nrChannels, format;
|
||||
for (size_t i = 0; i < faces.size(); i++)
|
||||
{
|
||||
unsigned char* data = stbi_load(faces[i].c_str(), &width, &height, &nrChannels, 0);
|
||||
switch (nrChannels)
|
||||
{
|
||||
case 4: format = GL_RGBA; break;
|
||||
case 3: format = GL_RGB; break;
|
||||
case 2: format = GL_RED; break;
|
||||
default: format = GL_RGB; break;
|
||||
}
|
||||
if (data)
|
||||
{
|
||||
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + static_cast<int>(i), 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
|
||||
}
|
||||
else {
|
||||
std::cerr << DC_INFO " Failed to load cubemap texture at " << faces[i] << std::endl;
|
||||
}
|
||||
stbi_image_free(data);
|
||||
};
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
||||
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
|
||||
|
||||
return textureID;
|
||||
}
|
||||
|
||||
unsigned int cubeVAO = 0, cubeVBO = 0;
|
||||
void draw_cube(void)
|
||||
{
|
||||
if (cubeVBO == 0 || cubeVAO == 0)
|
||||
{
|
||||
float cubeVertices[] = {
|
||||
// back face
|
||||
-1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, // bottom-left
|
||||
1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, // top-right
|
||||
1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f, // bottom-right
|
||||
1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, // top-right
|
||||
-1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, // bottom-left
|
||||
-1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, // top-left
|
||||
// front face
|
||||
-1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, // bottom-left
|
||||
1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, // bottom-right
|
||||
1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, // top-right
|
||||
1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, // top-right
|
||||
-1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, // top-left
|
||||
-1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, // bottom-left
|
||||
// left face
|
||||
-1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, // top-right
|
||||
-1.0f, 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, // top-left
|
||||
-1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, // bottom-left
|
||||
-1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, // bottom-left
|
||||
-1.0f, -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, // bottom-right
|
||||
-1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, // top-right
|
||||
// right face
|
||||
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, // top-left
|
||||
1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, // bottom-right
|
||||
1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, // top-right
|
||||
1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, // bottom-right
|
||||
1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, // top-left
|
||||
1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, // bottom-left
|
||||
// bottom face
|
||||
-1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, // top-right
|
||||
1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 1.0f, // top-left
|
||||
1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, // bottom-left
|
||||
1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, // bottom-left
|
||||
-1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, // bottom-right
|
||||
-1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, // top-right
|
||||
// top face
|
||||
-1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, // top-left
|
||||
1.0f, 1.0f , 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, // bottom-right
|
||||
1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, // top-right
|
||||
1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, // bottom-right
|
||||
-1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, // top-left
|
||||
-1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f // bottom-left
|
||||
};
|
||||
|
||||
glGenVertexArrays(1, &cubeVAO);
|
||||
glGenBuffers(1, &cubeVBO);
|
||||
glBindVertexArray(cubeVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, cubeVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(cubeVertices), cubeVertices, GL_STATIC_DRAW);
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)0);
|
||||
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)(6 * sizeof(float)));
|
||||
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)(3 * sizeof(float)));
|
||||
for (int i = 0; i < 3; i++)
|
||||
glEnableVertexAttribArray(i);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
glBindVertexArray(cubeVAO);
|
||||
glDrawArrays(GL_TRIANGLES, 0, 36);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
unsigned int floorVAO = 0, floorVBO = 0;
|
||||
void draw_floor(void)
|
||||
{
|
||||
if (floorVAO == 0 || floorVBO == 0)
|
||||
{
|
||||
float floorVertices[] = {
|
||||
// positions // normals // texcoords
|
||||
25.0f, -0.5f, 25.0f, 0.0f, 1.0f, 0.0f, 25.0f, 0.0f,
|
||||
-25.0f, -0.5f, 25.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
|
||||
-25.0f, -0.5f, -25.0f, 0.0f, 1.0f, 0.0f, 0.0f, 25.0f,
|
||||
|
||||
25.0f, -0.5f, 25.0f, 0.0f, 1.0f, 0.0f, 25.0f, 0.0f,
|
||||
-25.0f, -0.5f, -25.0f, 0.0f, 1.0f, 0.0f, 0.0f, 25.0f,
|
||||
25.0f, -0.5f, -25.0f, 0.0f, 1.0f, 0.0f, 25.0f, 25.0f
|
||||
};
|
||||
|
||||
glGenVertexArrays(1, &floorVAO);
|
||||
glGenBuffers(1, &floorVBO);
|
||||
glBindVertexArray(floorVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, floorVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(floorVertices), floorVertices, GL_STATIC_DRAW);
|
||||
glEnableVertexAttribArray(0); // aPos
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)0);
|
||||
glEnableVertexAttribArray(1); // aTexCoord
|
||||
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)(6 * sizeof(float)));
|
||||
glEnableVertexAttribArray(2); // aNormal
|
||||
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (const void*)(3 * sizeof(float)));
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
glBindVertexArray(floorVAO);
|
||||
glDrawArrays(GL_TRIANGLES, 0, 6);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
unsigned int quadVAO = 0, quadVBO = 0;
|
||||
void draw_quad(void)
|
||||
{
|
||||
if (quadVAO == 0 || quadVBO == 0)
|
||||
{
|
||||
// positions
|
||||
glm::vec3 pos1(-1.0f, 1.0f, 0.0f);
|
||||
glm::vec3 pos2(-1.0f, -1.0f, 0.0f);
|
||||
glm::vec3 pos3(1.0f, -1.0f, 0.0f);
|
||||
glm::vec3 pos4(1.0f, 1.0f, 0.0f);
|
||||
// texture coordinates
|
||||
glm::vec2 uv1(0.0f, 1.0f);
|
||||
glm::vec2 uv2(0.0f, 0.0f);
|
||||
glm::vec2 uv3(1.0f, 0.0f);
|
||||
glm::vec2 uv4(1.0f, 1.0f);
|
||||
// normal vector
|
||||
glm::vec3 nm(0.0f, 0.0f, 1.0f);
|
||||
|
||||
// calculate tangent/bitangent vectors of both triangles
|
||||
glm::vec3 tangent1, bitangent1;
|
||||
glm::vec3 tangent2, bitangent2;
|
||||
// triangle 1
|
||||
// ----------
|
||||
glm::vec3 edge1 = pos2 - pos1;
|
||||
glm::vec3 edge2 = pos3 - pos1;
|
||||
glm::vec2 deltaUV1 = uv2 - uv1;
|
||||
glm::vec2 deltaUV2 = uv3 - uv1;
|
||||
|
||||
float f = 1.0f / (deltaUV1.x * deltaUV2.y - deltaUV2.x * deltaUV1.y);
|
||||
|
||||
tangent1.x = f * (deltaUV2.y * edge1.x - deltaUV1.y * edge2.x);
|
||||
tangent1.y = f * (deltaUV2.y * edge1.y - deltaUV1.y * edge2.y);
|
||||
tangent1.z = f * (deltaUV2.y * edge1.z - deltaUV1.y * edge2.z);
|
||||
|
||||
bitangent1.x = f * (-deltaUV2.x * edge1.x + deltaUV1.x * edge2.x);
|
||||
bitangent1.y = f * (-deltaUV2.x * edge1.y + deltaUV1.x * edge2.y);
|
||||
bitangent1.z = f * (-deltaUV2.x * edge1.z + deltaUV1.x * edge2.z);
|
||||
|
||||
// triangle 2
|
||||
// ----------
|
||||
edge1 = pos3 - pos1;
|
||||
edge2 = pos4 - pos1;
|
||||
deltaUV1 = uv3 - uv1;
|
||||
deltaUV2 = uv4 - uv1;
|
||||
|
||||
f = 1.0f / (deltaUV1.x * deltaUV2.y - deltaUV2.x * deltaUV1.y);
|
||||
|
||||
tangent2.x = f * (deltaUV2.y * edge1.x - deltaUV1.y * edge2.x);
|
||||
tangent2.y = f * (deltaUV2.y * edge1.y - deltaUV1.y * edge2.y);
|
||||
tangent2.z = f * (deltaUV2.y * edge1.z - deltaUV1.y * edge2.z);
|
||||
|
||||
|
||||
bitangent2.x = f * (-deltaUV2.x * edge1.x + deltaUV1.x * edge2.x);
|
||||
bitangent2.y = f * (-deltaUV2.x * edge1.y + deltaUV1.x * edge2.y);
|
||||
bitangent2.z = f * (-deltaUV2.x * edge1.z + deltaUV1.x * edge2.z);
|
||||
|
||||
|
||||
float quadVertices[] = {
|
||||
// positions // normal // texcoords // tangent // bitangent
|
||||
pos1.x, pos1.y, pos1.z, nm.x, nm.y, nm.z, uv1.x, uv1.y, tangent1.x, tangent1.y, tangent1.z, bitangent1.x, bitangent1.y, bitangent1.z,
|
||||
pos2.x, pos2.y, pos2.z, nm.x, nm.y, nm.z, uv2.x, uv2.y, tangent1.x, tangent1.y, tangent1.z, bitangent1.x, bitangent1.y, bitangent1.z,
|
||||
pos3.x, pos3.y, pos3.z, nm.x, nm.y, nm.z, uv3.x, uv3.y, tangent1.x, tangent1.y, tangent1.z, bitangent1.x, bitangent1.y, bitangent1.z,
|
||||
|
||||
pos1.x, pos1.y, pos1.z, nm.x, nm.y, nm.z, uv1.x, uv1.y, tangent2.x, tangent2.y, tangent2.z, bitangent2.x, bitangent2.y, bitangent2.z,
|
||||
pos3.x, pos3.y, pos3.z, nm.x, nm.y, nm.z, uv3.x, uv3.y, tangent2.x, tangent2.y, tangent2.z, bitangent2.x, bitangent2.y, bitangent2.z,
|
||||
pos4.x, pos4.y, pos4.z, nm.x, nm.y, nm.z, uv4.x, uv4.y, tangent2.x, tangent2.y, tangent2.z, bitangent2.x, bitangent2.y, bitangent2.z
|
||||
};
|
||||
// configure plane VAO
|
||||
glGenVertexArrays(1, &quadVAO);
|
||||
glGenBuffers(1, &quadVBO);
|
||||
glBindVertexArray(quadVAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, quadVBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), &quadVertices, GL_STATIC_DRAW);
|
||||
glEnableVertexAttribArray(0);
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 14 * sizeof(float), (void*)0);
|
||||
glEnableVertexAttribArray(2);
|
||||
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 14 * sizeof(float), (void*)(3 * sizeof(float)));
|
||||
glEnableVertexAttribArray(1);
|
||||
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 14 * sizeof(float), (void*)(6 * sizeof(float)));
|
||||
glEnableVertexAttribArray(3);
|
||||
glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, 14 * sizeof(float), (void*)(8 * sizeof(float)));
|
||||
glEnableVertexAttribArray(4);
|
||||
glVertexAttribPointer(4, 3, GL_FLOAT, GL_FALSE, 14 * sizeof(float), (void*)(11 * sizeof(float)));
|
||||
}
|
||||
glBindVertexArray(quadVAO);
|
||||
glDrawArrays(GL_TRIANGLES, 0, 6);
|
||||
glBindVertexArray(0);
|
||||
}
|
||||
|
||||
unsigned int brick_texture = 0, brick_texture_normal = 0;
|
||||
void draw_scene(const Shader* shader, bool lightCube)
|
||||
{
|
||||
//if (brick_texture == 0) // flipV sRGB
|
||||
// brick_texture = load_texture(TEXTURES_DIR "brickwall/brickwall.jpg", true, true);
|
||||
//if (brick_texture_normal == 0)
|
||||
// brick_texture_normal = load_texture(TEXTURES_DIR "brickwall/brickwall_normal.jpg", true, false);
|
||||
if (cyborg == NULL)
|
||||
cyborg = new glml::Model(MODELS_DIR "backpack/backpack.obj", true, true);
|
||||
|
||||
glm::mat4 model(1.0f);
|
||||
glm::mat4 view = myCamera.getViewMatrix();
|
||||
glm::mat4 projection = glm::perspective(glm::radians(myCamera.FOV),
|
||||
WINDOW_WIDTH / (float)WINDOW_HEIGHT, 0.1f, 300.0f);
|
||||
|
||||
shader->Use();
|
||||
shader->setMat4("projection", projection);
|
||||
shader->setMat4("view", view);
|
||||
|
||||
// Lighting
|
||||
float tim = (float)glfwGetTime();
|
||||
lightPos = glm::vec3(0.0f, 0.0f, 0.0f);
|
||||
shader->setVec3("light.position", lightPos);
|
||||
shader->setVec3("viewPos", myCamera.Position);
|
||||
shader->setVec3("light.ambient", glm::vec3(0.005f));
|
||||
shader->setVec3("light.diffuse", 0.9f * lightColor);
|
||||
shader->setVec3("light.specular", 1.0f * lightColor);
|
||||
|
||||
/*shader->setInt("texture0", 0);
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_2D, brick_texture);
|
||||
shader->setInt("texture0_normal", 1);
|
||||
glActiveTexture(GL_TEXTURE1);
|
||||
glBindTexture(GL_TEXTURE_2D, brick_texture_normal);*/
|
||||
|
||||
if (cullFaces)
|
||||
glEnable(GL_CULL_FACE);
|
||||
|
||||
model = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, -1.5f, -2.0f));
|
||||
model = glm::scale(model, glm::vec3(1.0f));
|
||||
//model = glm::rotate(model, glm::radians(-45.0f), glm::vec3(1.0f, 0.0f, 0.0f));
|
||||
shader->setMat4("model", model);
|
||||
shader->setMat3("normalMatrix", glm::transpose(glm::inverse(model)));
|
||||
shader->setBool("normalMapping", normalMapping);
|
||||
cyborg->Draw(*shader);
|
||||
|
||||
if (lightCube)
|
||||
{
|
||||
basicShader->Use();
|
||||
model = glm::translate(glm::mat4(1.0f), lightPos);
|
||||
model = glm::scale(model, glm::vec3(0.1f));
|
||||
basicShader->setMat4("PVM", projection * view * model);
|
||||
basicShader->setVec3("Color", lightColor);
|
||||
draw_cube();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,12 @@
|
||||
#version 330 core
|
||||
|
||||
out vec4 FragColor;
|
||||
|
||||
uniform vec3 Color;
|
||||
|
||||
void main()
|
||||
{
|
||||
//FragColor = vec4(Color.rgb, 1.0);
|
||||
// Gamma corrected color
|
||||
FragColor = vec4(pow(Color.rgb, vec3(1.0/2.2)).rgb, 1.0);
|
||||
}
|
||||
@@ -0,0 +1,10 @@
|
||||
#version 330 core
|
||||
|
||||
layout (location = 0) in vec3 aPos;
|
||||
|
||||
uniform mat4 PVM;
|
||||
|
||||
void main()
|
||||
{
|
||||
gl_Position = PVM * vec4(aPos, 1.0);
|
||||
}
|
||||
@@ -0,0 +1,40 @@
|
||||
#version 330 core
|
||||
|
||||
out vec4 FragColor;
|
||||
in vec2 TexCoord;
|
||||
|
||||
uniform sampler2D texture0;
|
||||
float offset = 1.0 / 300.0;
|
||||
|
||||
void main()
|
||||
{
|
||||
vec2 offsets[9] = vec2[](
|
||||
vec2(-offset, offset), // top-left
|
||||
vec2(0.0, offset), // top-center
|
||||
vec2(offset, offset), // top-right
|
||||
vec2(-offset, 0.0), // center-right
|
||||
vec2(0.0, 0.0), // center-center
|
||||
vec2(offset, 0.0), // center-right
|
||||
vec2(-offset, -offset), // bottom-left
|
||||
vec2(0.0, -offset), // bottom-center
|
||||
vec2(offset, -offset) // bottom-right
|
||||
);
|
||||
|
||||
float kernel[9] = float[](
|
||||
0, 0, 0,
|
||||
0, 1, 0,
|
||||
0, 0, 0
|
||||
);
|
||||
|
||||
vec3 col = vec3(0.0);
|
||||
for (int i = 0; i < 9; i++)
|
||||
{
|
||||
col += vec3(texture(texture0, TexCoord.st + offsets[i])) * kernel[i];
|
||||
}
|
||||
|
||||
float gamma = 2.2;
|
||||
//FragColor = vec4(pow(col, vec3(1.0 / gamma)), 1.0);
|
||||
FragColor = vec4(col, 1.0f);
|
||||
// vec3 col = vec3(texture(texture0, TexCoord).r);
|
||||
// FragColor = vec4(pow(col, vec3(1.0 / 2.2)), 1.0);
|
||||
}
|
||||
@@ -0,0 +1,14 @@
|
||||
#version 330 core
|
||||
|
||||
layout (location = 0) in vec3 aPos;
|
||||
layout (location = 1) in vec2 aTexCoord;
|
||||
|
||||
uniform mat4 PV, model;
|
||||
|
||||
out vec2 TexCoord;
|
||||
|
||||
void main()
|
||||
{
|
||||
TexCoord = aTexCoord;
|
||||
gl_Position = vec4(aPos, 1.0);
|
||||
}
|
||||
@@ -0,0 +1,63 @@
|
||||
#version 330 core
|
||||
|
||||
struct Light {
|
||||
vec3 position;
|
||||
vec3 diffuse, specular, ambient;
|
||||
};
|
||||
struct Material {
|
||||
sampler2D texture_diffuse0;
|
||||
sampler2D texture_height0;
|
||||
sampler2D texture_specular0;
|
||||
};
|
||||
|
||||
out vec4 FragColor;
|
||||
|
||||
in VS_OUT
|
||||
{
|
||||
vec3 Normal;
|
||||
vec2 TexCoord;
|
||||
vec3 TangFragPos;
|
||||
vec3 TangViewPos;
|
||||
vec3 TangLightPos;
|
||||
} fs_in; // vertex shader in
|
||||
|
||||
uniform Material material;
|
||||
uniform Light light;
|
||||
uniform bool normalMapping;
|
||||
|
||||
void main()
|
||||
{
|
||||
vec3 color = texture(material.texture_diffuse0, fs_in.TexCoord).rgb;
|
||||
//vec3 color = vec3(1.0, 0.6, 0.34);
|
||||
|
||||
// make light direction towards the origin vec3(0.0) <-- we want directional light
|
||||
vec3 lightDir = normalize(fs_in.TangLightPos - fs_in.TangFragPos);
|
||||
vec3 viewDir = normalize(fs_in.TangViewPos - fs_in.TangFragPos);
|
||||
vec3 normal;
|
||||
if (normalMapping) {
|
||||
normal = texture(material.texture_height0, fs_in.TexCoord).rgb;
|
||||
normal = normalize(normal * 2.0 - 1.0);
|
||||
}
|
||||
else {
|
||||
normal = fs_in.Normal;
|
||||
}
|
||||
|
||||
float fragDist = length(fs_in.TangLightPos - fs_in.TangFragPos);
|
||||
float attenuation = 1.0 / (1.0 + 0.14 * fragDist + 0.07 * fragDist * fragDist);
|
||||
//float attenuation = 1.0 / (fragDist * fragDist);
|
||||
|
||||
// ambient
|
||||
vec3 ambient = light.ambient * color;
|
||||
// diffuse
|
||||
float diff = max(dot(lightDir, normal), 0.0);
|
||||
vec3 diffuse = diff * light.diffuse * color;
|
||||
// specular
|
||||
vec3 halfwayDir = normalize(lightDir + viewDir);
|
||||
float spec = pow(max(dot(halfwayDir, normal), 0.0), 128.0);
|
||||
vec3 specular = spec * light.specular * texture(material.texture_specular0, fs_in.TexCoord).rgb;
|
||||
|
||||
FragColor.rgb = pow(ambient + (diffuse + specular) * attenuation, vec3(1.0 / 2.2));
|
||||
FragColor.a = 1.0;
|
||||
// FragColor.rgb = pow(vec3(texture(depthCubemap, vs_in.FragPos - light.position).r), vec3(1.0/2.2));
|
||||
// FragColor.a = 1.0;
|
||||
}
|
||||
@@ -0,0 +1,46 @@
|
||||
#version 330 core
|
||||
|
||||
layout (location = 0) in vec3 aPos;
|
||||
layout (location = 1) in vec3 aNormal;
|
||||
layout (location = 2) in vec2 aTexCoord;
|
||||
layout (location = 3) in vec3 aTangent;
|
||||
layout (location = 4) in vec3 aBitangent;
|
||||
|
||||
struct Light {
|
||||
vec3 position;
|
||||
vec3 diffuse, specular, ambient;
|
||||
};
|
||||
|
||||
out VS_OUT
|
||||
{
|
||||
vec3 Normal;
|
||||
vec2 TexCoord;
|
||||
vec3 TangFragPos;
|
||||
vec3 TangViewPos;
|
||||
vec3 TangLightPos;
|
||||
};
|
||||
|
||||
uniform mat4 projection;
|
||||
uniform mat4 view;
|
||||
uniform mat4 model;
|
||||
uniform mat3 normalMatrix;
|
||||
uniform vec3 viewPos;
|
||||
uniform Light light;
|
||||
uniform bool normalMapping;
|
||||
|
||||
void main()
|
||||
{
|
||||
|
||||
vec3 T = normalize(normalMatrix * aTangent);
|
||||
vec3 B = normalize(normalMatrix * aBitangent);
|
||||
vec3 N = normalize(normalMatrix * aNormal);
|
||||
mat3 TBN = (normalMapping) ? transpose(mat3(T, B, N)) : mat3(1.0);
|
||||
|
||||
TangLightPos = TBN * light.position;
|
||||
TangViewPos = TBN * viewPos;
|
||||
TangFragPos = TBN * vec3(model * vec4(aPos, 1.0)); // Fragment position in world space
|
||||
|
||||
Normal = N;
|
||||
TexCoord = aTexCoord;
|
||||
gl_Position = projection * view * model * vec4(aPos, 1.0);
|
||||
}
|
||||
Reference in New Issue
Block a user