You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
210 lines
6.5 KiB
210 lines
6.5 KiB
#include <windows.h>
|
|
#include "glew.h"
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
#include "utils.h"
|
|
#include "GPUProgram.h"
|
|
#include "ObjModel.h"
|
|
#include "FBO.h"
|
|
#include "FullScreenQuad.h"
|
|
#include "Glm/glm.hpp"
|
|
#include "Glm/ext.hpp"
|
|
#pragma comment(lib,"opengl32.lib")
|
|
#pragma comment(lib,"glew32.lib")
|
|
|
|
LRESULT CALLBACK GLWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
switch (msg)
|
|
{
|
|
case WM_CLOSE:
|
|
PostQuitMessage(0);
|
|
break;
|
|
}
|
|
return DefWindowProc(hwnd,msg,wParam,lParam);
|
|
}
|
|
|
|
|
|
INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd)
|
|
{
|
|
WNDCLASSEX wndClass;
|
|
wndClass.cbClsExtra = 0;
|
|
wndClass.cbSize = sizeof(WNDCLASSEX);
|
|
wndClass.cbWndExtra = 0;
|
|
wndClass.hbrBackground = NULL;
|
|
wndClass.hCursor = LoadCursor(NULL,IDC_ARROW);
|
|
wndClass.hIcon = NULL;
|
|
wndClass.hIconSm = NULL;
|
|
wndClass.hInstance = hInstance;
|
|
wndClass.lpfnWndProc=GLWindowProc;
|
|
wndClass.lpszClassName = "OpenGL";
|
|
wndClass.lpszMenuName = NULL;
|
|
wndClass.style = CS_VREDRAW | CS_HREDRAW;
|
|
ATOM atom = RegisterClassEx(&wndClass);
|
|
|
|
RECT rect;
|
|
rect.left = 0;
|
|
rect.top = 0;
|
|
rect.right = 512;
|
|
rect.bottom = 512;
|
|
AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW, FALSE);
|
|
|
|
HWND hwnd = CreateWindowEx(NULL, "OpenGL", "RenderWindow", WS_OVERLAPPEDWINDOW, 100, 100, rect.right - rect.left, rect.bottom - rect.top, NULL, NULL, hInstance, NULL);
|
|
HDC dc = GetDC(hwnd);
|
|
PIXELFORMATDESCRIPTOR pfd;
|
|
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
|
|
pfd.nVersion = 1;
|
|
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_TYPE_RGBA | PFD_DOUBLEBUFFER;
|
|
pfd.iLayerType = PFD_MAIN_PLANE;
|
|
pfd.iPixelType = PFD_TYPE_RGBA;
|
|
pfd.cColorBits = 32;
|
|
pfd.cDepthBits = 24;
|
|
pfd.cStencilBits = 8;
|
|
|
|
int pixelFormatID = ChoosePixelFormat(dc, &pfd);
|
|
|
|
SetPixelFormat(dc,pixelFormatID,&pfd);
|
|
|
|
HGLRC rc = wglCreateContext(dc);
|
|
wglMakeCurrent(dc, rc);
|
|
|
|
GetClientRect(hwnd, &rect);
|
|
int viewportWidth = rect.right - rect.left, viewportHeight = rect.bottom - rect.top;
|
|
|
|
glewInit();
|
|
|
|
//combine program
|
|
GPUProgram combineProgram1;
|
|
combineProgram1.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
|
|
combineProgram1.AttachShader(GL_FRAGMENT_SHADER, "res/shader/zpdd.fs");
|
|
combineProgram1.Link();
|
|
combineProgram1.DetectAttribute("pos");
|
|
combineProgram1.DetectAttribute("texcoord");
|
|
combineProgram1.DetectUniform("U_BaseTexture");
|
|
combineProgram1.DetectUniform("U_BlendTexture");
|
|
|
|
//combine program
|
|
GPUProgram combineProgram2;
|
|
combineProgram2.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
|
|
combineProgram2.AttachShader(GL_FRAGMENT_SHADER, "res/shader/zpdd_inverse.fs");
|
|
combineProgram2.Link();
|
|
combineProgram2.DetectAttribute("pos");
|
|
combineProgram2.DetectAttribute("texcoord");
|
|
combineProgram2.DetectUniform("U_BaseTexture");
|
|
combineProgram2.DetectUniform("U_BlendTexture");
|
|
|
|
//combine program
|
|
GPUProgram combineProgram3;
|
|
combineProgram3.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
|
|
combineProgram3.AttachShader(GL_FRAGMENT_SHADER, "res/shader/zpdd_dark.fs");
|
|
combineProgram3.Link();
|
|
combineProgram3.DetectAttribute("pos");
|
|
combineProgram3.DetectAttribute("texcoord");
|
|
combineProgram3.DetectUniform("U_BaseTexture");
|
|
combineProgram3.DetectUniform("U_BlendTexture");
|
|
|
|
//combine program
|
|
GPUProgram combineProgram4;
|
|
combineProgram4.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
|
|
combineProgram4.AttachShader(GL_FRAGMENT_SHADER, "res/shader/zpdd_light.fs");
|
|
combineProgram4.Link();
|
|
combineProgram4.DetectAttribute("pos");
|
|
combineProgram4.DetectAttribute("texcoord");
|
|
combineProgram4.DetectUniform("U_BaseTexture");
|
|
combineProgram4.DetectUniform("U_BlendTexture");
|
|
|
|
|
|
|
|
|
|
//init 3d model
|
|
ObjModel quad;
|
|
quad.Init("res/model/Quad.obj");
|
|
|
|
float identity[] = {
|
|
1.0f,0,0,0,
|
|
0,1.0f,0,0,
|
|
0,0,1.0f,0,
|
|
0,0,0,1.0f
|
|
};
|
|
|
|
|
|
|
|
glm::mat4 quadModel = glm::translate<float>(0.0f, 0.0f, -2.0f) * glm::rotate(-90.0f, 1.0f, 0.0f, 0.0f) * glm::scale(8.0f, 8.0f, 8.0f);
|
|
glm::mat4 quadNormalMatrix = glm::inverseTranspose(quadModel);
|
|
|
|
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));
|
|
glm::mat4 projectionMatrix = glm::perspective(50.0f, 800.0f / 600.0f, 0.1f, 1000.0f);
|
|
|
|
|
|
//³õʼ»¯fsq
|
|
FullScreenQuad fsq;
|
|
fsq.Init();
|
|
|
|
|
|
GLuint head = CreateTextureFromFile("res/image/wood.bmp");
|
|
GLuint grass = CreateTextureFromFile("res/image/earth.bmp");
|
|
|
|
ShowWindow(hwnd, SW_SHOW);
|
|
UpdateWindow(hwnd);
|
|
|
|
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
|
|
MSG msg;
|
|
while (true)
|
|
{
|
|
if (PeekMessage(&msg,NULL,NULL,NULL,PM_REMOVE))
|
|
{
|
|
if (msg.message==WM_QUIT)
|
|
{
|
|
break;
|
|
}
|
|
TranslateMessage(&msg);
|
|
DispatchMessage(&msg);
|
|
}
|
|
glEnable(GL_DEPTH_TEST);
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
|
|
glUseProgram(combineProgram1.mProgram);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_2D, head);
|
|
glUniform1i(combineProgram1.GetLocation("U_BaseTexture"), 0);
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glBindTexture(GL_TEXTURE_2D, grass);
|
|
glUniform1i(combineProgram1.GetLocation("U_BlendTexture"), 1);
|
|
fsq.DrawToLeftTop(combineProgram1.GetLocation("pos"), combineProgram1.GetLocation("texcoord"));
|
|
|
|
glUseProgram(combineProgram2.mProgram);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_2D, head);
|
|
glUniform1i(combineProgram2.GetLocation("U_BaseTexture"), 0);
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glBindTexture(GL_TEXTURE_2D, grass);
|
|
glUniform1i(combineProgram2.GetLocation("U_BlendTexture"), 1);
|
|
fsq.DrawToRightTop(combineProgram2.GetLocation("pos"), combineProgram2.GetLocation("texcoord"));
|
|
|
|
glUseProgram(combineProgram3.mProgram);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_2D, head);
|
|
glUniform1i(combineProgram3.GetLocation("U_BaseTexture"), 0);
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glBindTexture(GL_TEXTURE_2D, grass);
|
|
glUniform1i(combineProgram3.GetLocation("U_BlendTexture"), 1);
|
|
fsq.DrawToLeftBottom(combineProgram3.GetLocation("pos"), combineProgram3.GetLocation("texcoord"));
|
|
|
|
glUseProgram(combineProgram4.mProgram);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_2D, head);
|
|
glUniform1i(combineProgram4.GetLocation("U_BaseTexture"), 0);
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glBindTexture(GL_TEXTURE_2D, grass);
|
|
glUniform1i(combineProgram4.GetLocation("U_BlendTexture"), 1);
|
|
fsq.DrawToRightBottom(combineProgram4.GetLocation("pos"), combineProgram4.GetLocation("texcoord"));
|
|
|
|
glDisable(GL_BLEND);
|
|
glFlush();
|
|
SwapBuffers(dc);
|
|
}
|
|
return 0;
|
|
}
|