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387 lines
15 KiB
387 lines
15 KiB
#include <windows.h>
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#include "glew.h"
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#include <stdio.h>
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#include <math.h>
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#include "utils.h"
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#include "GPUProgram.h"
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#include "ObjModel.h"
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#include "FBO.h"
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#include "FullScreenQuad.h"
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#include "Glm/glm.hpp"
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#include "Glm/ext.hpp"
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#pragma comment(lib,"opengl32.lib")
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#pragma comment(lib,"glew32.lib")
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LRESULT CALLBACK GLWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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switch (msg)
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{
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case WM_CLOSE:
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PostQuitMessage(0);
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break;
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}
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return DefWindowProc(hwnd, msg, wParam, lParam);
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}
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INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd)
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{
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WNDCLASSEX wndClass;
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wndClass.cbClsExtra = 0;
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wndClass.cbSize = sizeof(WNDCLASSEX);
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wndClass.cbWndExtra = 0;
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wndClass.hbrBackground = NULL;
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wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
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wndClass.hIcon = NULL;
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wndClass.hIconSm = NULL;
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wndClass.hInstance = hInstance;
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wndClass.lpfnWndProc = GLWindowProc;
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wndClass.lpszClassName = "OpenGL";
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wndClass.lpszMenuName = NULL;
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wndClass.style = CS_VREDRAW | CS_HREDRAW;
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ATOM atom = RegisterClassEx(&wndClass);
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RECT rect;
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rect.left = 0;
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rect.top = 0;
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rect.right = 800;
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rect.bottom = 600;
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AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, FALSE);
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HWND hwnd = CreateWindowEx(NULL, "OpenGL", "RenderWindow", WS_OVERLAPPEDWINDOW, 100, 100, rect.right - rect.left, rect.bottom - rect.top, NULL, NULL, hInstance, NULL);
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HDC dc = GetDC(hwnd);
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PIXELFORMATDESCRIPTOR pfd;
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memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
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pfd.nVersion = 1;
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pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_TYPE_RGBA | PFD_DOUBLEBUFFER;
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pfd.iLayerType = PFD_MAIN_PLANE;
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pfd.iPixelType = PFD_TYPE_RGBA;
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pfd.cColorBits = 32;
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pfd.cDepthBits = 24;
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pfd.cStencilBits = 8;
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int pixelFormatID = ChoosePixelFormat(dc, &pfd);
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SetPixelFormat(dc, pixelFormatID, &pfd);
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HGLRC rc = wglCreateContext(dc);
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wglMakeCurrent(dc, rc);
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GetClientRect(hwnd, &rect);
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int viewportWidth = rect.right - rect.left, viewportHeight = rect.bottom - rect.top;
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glewInit();
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//init fsqgpu program
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GPUProgram originalProgram;
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originalProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
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originalProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/fullscreenquad.fs");
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originalProgram.Link();
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originalProgram.DetectAttribute("pos");
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originalProgram.DetectAttribute("texcoord");
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originalProgram.DetectUniform("U_MainTexture");
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//init depth render program
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GPUProgram depthRenderProgram;
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depthRenderProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
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depthRenderProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/depthrender.fs");
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depthRenderProgram.Link();
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depthRenderProgram.DetectAttribute("pos");
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depthRenderProgram.DetectAttribute("texcoord");
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depthRenderProgram.DetectUniform("U_MainTexture");
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//init hdr program
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GPUProgram hdrProgram;
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hdrProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
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hdrProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/hdrrender.fs");
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hdrProgram.Link();
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hdrProgram.DetectAttribute("pos");
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hdrProgram.DetectAttribute("texcoord");
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hdrProgram.DetectUniform("U_MainTexture");
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//高斯模糊
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GPUProgram gaussianProgram;
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gaussianProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
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gaussianProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/fullscreenquad_gaussian.fs");
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gaussianProgram.Link();
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gaussianProgram.DetectAttribute("pos");
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gaussianProgram.DetectAttribute("texcoord");
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gaussianProgram.DetectUniform("U_MainTexture");
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//combine program
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GPUProgram combineProgram;
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combineProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
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combineProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/combine.fs");
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combineProgram.Link();
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combineProgram.DetectAttribute("pos");
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combineProgram.DetectAttribute("texcoord");
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combineProgram.DetectUniform("U_MainTexture");
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combineProgram.DetectUniform("U_HDRTexture");
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//init light source program
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GPUProgram lightSourceProgram;
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lightSourceProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/lightSource.vs");
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lightSourceProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/lightSource.fs");
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lightSourceProgram.Link();
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lightSourceProgram.DetectAttribute("pos");
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lightSourceProgram.DetectUniform("M");
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lightSourceProgram.DetectUniform("V");
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lightSourceProgram.DetectUniform("P");
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//init depth program
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GPUProgram depthProgram;
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depthProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/sample_depth_buffer.vs");
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depthProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/sample_depth_buffer.fs");
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depthProgram.Link();
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depthProgram.DetectAttribute("pos");
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depthProgram.DetectUniform("M");
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depthProgram.DetectUniform("V");
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depthProgram.DetectUniform("P");
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//init gpu program
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GPUProgram gpuProgram;
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gpuProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/test.vs");
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gpuProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/hdr.fs");
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gpuProgram.Link();
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gpuProgram.DetectAttribute("pos");
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gpuProgram.DetectAttribute("texcoord");
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gpuProgram.DetectAttribute("normal");
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gpuProgram.DetectUniform("M");
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gpuProgram.DetectUniform("V");
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gpuProgram.DetectUniform("P");
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gpuProgram.DetectUniform("NM");
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gpuProgram.DetectUniform("U_AmbientLightColor");
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gpuProgram.DetectUniform("U_AmbientMaterial");
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gpuProgram.DetectUniform("U_DiffuseLightColor");
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gpuProgram.DetectUniform("U_DiffuseMaterial");
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gpuProgram.DetectUniform("U_DiffuseIntensity");
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gpuProgram.DetectUniform("U_LightPos");
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gpuProgram.DetectUniform("U_LightDirection");
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gpuProgram.DetectUniform("U_Cutoff");
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gpuProgram.DetectUniform("U_SpecularLightColor");
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gpuProgram.DetectUniform("U_SpecularMaterial");
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gpuProgram.DetectUniform("U_EyePos");
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gpuProgram.DetectUniform("U_LightProjection");
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gpuProgram.DetectUniform("U_LightViewMatrix");
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gpuProgram.DetectUniform("U_ShadowMap");
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//init 3d model
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ObjModel obj, quad, sphere;
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obj.Init("res/model/Cube.obj");
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quad.Init("res/model/Quad.obj");
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sphere.Init("res/model/Sphere.obj");
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float identity[] = {
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1.0f,0,0,0,
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0,1.0f,0,0,
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0,0,1.0f,0,
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0,0,0,1.0f
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};
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float ambientLightColor[] = { 0.4f,0.4f,0.4f,1.0f };
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float ambientMaterial[] = { 0.2f,0.2f,0.2f,1.0f };
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float diffuseLightColor[] = { 1.0f,1.0f,1.0f,1.0f };
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float diffuseMaterial[] = { 0.8f, 0.8f, 0.8f, 1.0f };
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float lightPos[] = { 0.0f,1.0f, 0.0f,0.0f };
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float diffuseIntensity = 1.0f;
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float spotLightDirection[] = { 0.0f, -1.0f, 0.0f, 128.0f };//把最后一位改成......
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float spotLightCutoff = 0.0f;
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float specularLightColor[] = { 1.0f,1.0f,1.0f,1.0f };
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float specularMaterial[] = { 1.0f,1.0f,1.0f,1.0f };
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float eyePos[] = { 0.0f, 0.0f, 0.0f };
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glm::mat4 model = glm::translate<float>(0.0f, 0.0f, -2.0f) * glm::rotate(-60.0f, 1.0f, 1.0f, 1.0f);
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glm::mat4 normalMatrix = glm::inverseTranspose(model);
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glm::mat4 quadModel = glm::translate<float>(0.0f, -1.5f, -2.0f) * glm::rotate(-90.0f, 1.0f, 0.0f, 0.0f) * glm::scale(8.0f, 8.0f, 8.0f);
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glm::mat4 quadNormalMatrix = glm::inverseTranspose(quadModel);
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glm::mat4 sphereModel = glm::translate<float>(0.1f, 3.0f, -2.2f) * glm::scale(0.3f, 0.3f, 0.3f);
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glm::mat4 sphereNormalMatrix = glm::inverseTranspose(sphereModel);
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glm::mat4 viewMatrix = glm::lookAt(glm::vec3(1.0f, 0.5f, -10.0f), glm::vec3(0.0f, 0.0f, -1.0f), glm::vec3(0.0f, 1.0f, 0.0f));
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glm::mat4 projectionMatrix = glm::perspective(50.0f, 800.0f / 600.0f, 0.1f, 1000.0f);
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glm::mat4 lightMatrix = glm::lookAt(glm::vec3(0.0f, 10.0f, 0.0f), glm::vec3(0.0f, 0.0f, -2.0f), glm::vec3(0.0f, 0.0f, -1.0f));
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glm::mat4 lightprojectionMatrix = glm::ortho(-5.0f, 5.0f, -5.0f, 5.0f, 0.1f, 15.0f);
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//初始化fsq
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FullScreenQuad fsq;
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fsq.Init();
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//初始化FBO
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FBO fbo[2];
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fbo[0].AttachColorBuffer("color", GL_COLOR_ATTACHMENT0, GL_RGBA, viewportWidth, viewportHeight);
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fbo[0].AttachDepthBuffer("depth", viewportWidth, viewportHeight);
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fbo[0].Finish();
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fbo[1].AttachColorBuffer("color", GL_COLOR_ATTACHMENT0, GL_RGBA, viewportWidth, viewportHeight);
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fbo[1].AttachDepthBuffer("depth", viewportWidth, viewportHeight);
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fbo[1].Finish();
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FBO HDRfbo;
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HDRfbo.AttachColorBuffer("color", GL_COLOR_ATTACHMENT0, GL_RGBA, viewportWidth, viewportHeight);
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HDRfbo.AttachColorBuffer("hdrcolor", GL_COLOR_ATTACHMENT1, GL_RGBA16F, viewportWidth, viewportHeight);
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HDRfbo.AttachDepthBuffer("depth", viewportWidth, viewportHeight);
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HDRfbo.Finish();
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FBO depthfbo;
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depthfbo.AttachColorBuffer("color", GL_COLOR_ATTACHMENT0, GL_RGB, viewportWidth, viewportHeight);
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depthfbo.AttachDepthBuffer("depth", viewportWidth, viewportHeight);
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depthfbo.Finish();
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ShowWindow(hwnd, SW_SHOW);
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UpdateWindow(hwnd);
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glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
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glEnable(GL_DEPTH_TEST);
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depthfbo.Bind();
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glUseProgram(depthProgram.mProgram);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glUniformMatrix4fv(depthProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(model));
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glUniformMatrix4fv(depthProgram.GetLocation("V"), 1, GL_FALSE, glm::value_ptr(lightMatrix));
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glUniformMatrix4fv(depthProgram.GetLocation("P"), 1, GL_FALSE, glm::value_ptr(lightprojectionMatrix));
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obj.Bind(depthProgram.GetLocation("pos"), depthProgram.GetLocation("texcoord"), depthProgram.GetLocation("normal"));
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obj.Draw();
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glUniformMatrix4fv(depthProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(quadModel));
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quad.Bind(depthProgram.GetLocation("pos"), depthProgram.GetLocation("texcoord"), depthProgram.GetLocation("normal"));
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quad.Draw();
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glUseProgram(0);
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depthfbo.Unbind();
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HDRfbo.Bind();
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glUseProgram(gpuProgram.mProgram);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glUniform4fv(gpuProgram.GetLocation("U_AmbientLightColor"), 1, ambientLightColor);
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glUniform4fv(gpuProgram.GetLocation("U_AmbientMaterial"), 1, ambientMaterial);
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glUniform4fv(gpuProgram.GetLocation("U_DiffuseLightColor"), 1, diffuseLightColor);
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glUniform4fv(gpuProgram.GetLocation("U_DiffuseMaterial"), 1, diffuseMaterial);
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glUniform1f(gpuProgram.GetLocation("U_DiffuseIntensity"), diffuseIntensity);
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glUniform4fv(gpuProgram.GetLocation("U_LightDirection"), 1, spotLightDirection);
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glUniform4fv(gpuProgram.GetLocation("U_SpecularLightColor"), 1, specularLightColor);
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glUniform4fv(gpuProgram.GetLocation("U_SpecularMaterial"), 1, specularMaterial);
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glUniform4fv(gpuProgram.GetLocation("U_LightPos"), 1, lightPos);
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glUniform3fv(gpuProgram.GetLocation("U_EyePos"), 1, eyePos);
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glUniform1f(gpuProgram.GetLocation("U_Cutoff"), spotLightCutoff);
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glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(model));
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glUniformMatrix4fv(gpuProgram.GetLocation("V"), 1, GL_FALSE, glm::value_ptr(viewMatrix));
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glUniformMatrix4fv(gpuProgram.GetLocation("P"), 1, GL_FALSE, glm::value_ptr(projectionMatrix));
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glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(normalMatrix));
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glUniformMatrix4fv(gpuProgram.GetLocation("U_LightProjection"), 1, GL_FALSE, glm::value_ptr(lightprojectionMatrix));
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glUniformMatrix4fv(gpuProgram.GetLocation("U_LightViewMatrix"), 1, GL_FALSE, glm::value_ptr(lightMatrix));
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glBindTexture(GL_TEXTURE_2D, depthfbo.GetBuffer("depth"));
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glUniform1i(gaussianProgram.GetLocation("U_ShadowMap"), 0);
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obj.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
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obj.Draw();
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glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(quadModel));
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glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(quadNormalMatrix));
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quad.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
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quad.Draw();
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glUseProgram(lightSourceProgram.mProgram);
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glUniformMatrix4fv(lightSourceProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(sphereModel));
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glUniformMatrix4fv(lightSourceProgram.GetLocation("V"), 1, GL_FALSE, glm::value_ptr(viewMatrix));
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glUniformMatrix4fv(lightSourceProgram.GetLocation("P"), 1, GL_FALSE, glm::value_ptr(projectionMatrix));
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sphere.Bind(lightSourceProgram.GetLocation("pos"), lightSourceProgram.GetLocation("texcoord"), lightSourceProgram.GetLocation("normal"));
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sphere.Draw();
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glUseProgram(0);
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HDRfbo.Unbind();
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/* blur start */
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fbo[0].Bind();
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glUseProgram(gaussianProgram.mProgram);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, HDRfbo.GetBuffer("hdrcolor"));
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glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
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fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
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fbo[0].Unbind();
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fbo[1].Bind();
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glUseProgram(gaussianProgram.mProgram);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, fbo[0].GetBuffer("color"));
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glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
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fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
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fbo[1].Unbind();
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fbo[0].Bind();
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glUseProgram(gaussianProgram.mProgram);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, fbo[1].GetBuffer("color"));
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glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
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fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
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fbo[0].Unbind();
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fbo[1].Bind();
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glUseProgram(gaussianProgram.mProgram);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, fbo[0].GetBuffer("color"));
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glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
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fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
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fbo[1].Unbind();
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/* blur end */
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MSG msg;
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while (true)
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{
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if (PeekMessage(&msg, NULL, NULL, NULL, PM_REMOVE))
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{
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if (msg.message == WM_QUIT)
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{
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break;
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}
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glActiveTexture(GL_TEXTURE0);
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glUseProgram(originalProgram.mProgram);
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glBindTexture(GL_TEXTURE_2D, HDRfbo.GetBuffer("color"));
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glUniform1i(originalProgram.GetLocation("U_MainTexture"), 0);
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fsq.DrawToLeftTop(originalProgram.GetLocation("pos"), originalProgram.GetLocation("texcoord"));
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glUseProgram(depthRenderProgram.mProgram);
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glBindTexture(GL_TEXTURE_2D, depthfbo.GetBuffer("depth"));
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glUniform1i(depthRenderProgram.GetLocation("U_MainTexture"), 0);
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fsq.DrawToRightTop(depthRenderProgram.GetLocation("pos"), depthRenderProgram.GetLocation("texcoord"));
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glUseProgram(gaussianProgram.mProgram);
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glBindTexture(GL_TEXTURE_2D, fbo[1].GetBuffer("color"));
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glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
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fsq.DrawToLeftBottom(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
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glUseProgram(combineProgram.mProgram);
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, HDRfbo.GetBuffer("color"));
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glUniform1i(combineProgram.GetLocation("U_MainTexture"), 0);
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glActiveTexture(GL_TEXTURE1);
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glBindTexture(GL_TEXTURE_2D, fbo[1].GetBuffer("color"));
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glUniform1i(combineProgram.GetLocation("U_HDRTexture"), 1);
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fsq.DrawToRightBottom(combineProgram.GetLocation("pos"), combineProgram.GetLocation("texcoord"));
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glFlush();
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SwapBuffers(dc);
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}
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return 0;
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}
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