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多屏对比雾的density

master
blobt 4 years ago
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41396820fb
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756c2326d4
2 changed files with 65 additions and 8 deletions
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  1. BIN
      .vs/shader3/v14/.suo
  2. 73
      main.cpp

BIN
.vs/shader3/v14/.suo
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73
main.cpp
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@ -72,7 +72,16 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
glewInit();
//combine program
//init fsqgpu program
GPUProgram fsqProgram;
fsqProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/fullscreenquad.vs");
fsqProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/fullscreenquad.fs");
fsqProgram.Link();
fsqProgram.DetectAttribute("pos");
fsqProgram.DetectAttribute("texcoord");
fsqProgram.DetectUniform("U_MainTexture");
//gpu program
GPUProgram gpuProgram;
gpuProgram.AttachShader(GL_VERTEX_SHADER, "res/shader/forg.vs");
gpuProgram.AttachShader(GL_FRAGMENT_SHADER, "res/shader/forg.fs");
@ -140,16 +149,26 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
glm::mat4 cubeModelMatrix3 = glm::translate<float>(-0.4f, 0.0f, -20.0f) * glm::rotate(-30.0f, 1.0f, 1.0f, 1.0f);
glm::mat4 cubeNormalMatrix3 = glm::inverseTranspose(cubeModelMatrix);
//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, (float)viewportWidth / (float)viewportHeight, 0.1f, 1000.0f);
//³õʼ»¯fsq
FullScreenQuad fsq;
fsq.Init();
//³õʼ»¯2¸öfbo
FBO fbo[2];
fbo[0].AttachColorBuffer("color", GL_COLOR_ATTACHMENT0, GL_RGBA, viewportWidth, viewportHeight);
fbo[0].AttachDepthBuffer("depth", viewportWidth, viewportHeight);
fbo[0].Finish();
fbo[1].AttachColorBuffer("color", GL_COLOR_ATTACHMENT0, GL_RGBA, viewportWidth, viewportHeight);
fbo[1].AttachDepthBuffer("depth", viewportWidth, viewportHeight);
fbo[1].Finish();
ShowWindow(hwnd, SW_SHOW);
UpdateWindow(hwnd);
glClearColor(0.6f, 0.6f, 0.6f, 1.0f);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
MSG msg;
while (true)
{
@ -163,7 +182,6 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
DispatchMessage(&msg);
}
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(gpuProgram.mProgram);
@ -184,25 +202,64 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
glUniform1f(gpuProgram.GetLocation("U_FogStart"), fogStart);
glUniform1f(gpuProgram.GetLocation("U_FogEnd"), fogEnd);
glUniform4fv(gpuProgram.GetLocation("U_FogColor"), 1, fogColor);
glUniform1f(gpuProgram.GetLocation("U_FogDensity"), fogDensity);
fbo[0].Bind();
fogDensity = 0.11;
glUniform1f(gpuProgram.GetLocation("U_FogDensity"), fogDensity);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(cubeModelMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(cubeNormalMatrix));
cube.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
cube.Draw();
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(cubeModelMatrix2));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(cubeNormalMatrix2));
cube.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
cube.Draw();
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(cubeModelMatrix3));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(cubeNormalMatrix3));
cube.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
cube.Draw();
fbo[0].Unbind();
fbo[1].Bind();
fogDensity = 0.31;
glUniform1f(gpuProgram.GetLocation("U_FogDensity"), fogDensity);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(cubeModelMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(cubeNormalMatrix));
cube.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
cube.Draw();
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(cubeModelMatrix2));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(cubeNormalMatrix2));
cube.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
cube.Draw();
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(cubeModelMatrix3));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(cubeNormalMatrix3));
cube.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
cube.Draw();
fbo[1].Unbind();
glUseProgram(0);
glFlush();
glClearColor(0.6f, 0.6f, 0.6f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glUseProgram(fsqProgram.mProgram);
glBindTexture(GL_TEXTURE_2D, fbo[0].GetBuffer("color"));
glUniform1i(fsqProgram.GetLocation("U_MainTexture"), 0);
fsq.DrawToLeftTop(fsqProgram.GetLocation("pos"), fsqProgram.GetLocation("texcoord"));
glBindTexture(GL_TEXTURE_2D, fbo[1].GetBuffer("color"));
glUniform1i(fsqProgram.GetLocation("U_MainTexture"), 0);
fsq.DrawToRightTop(fsqProgram.GetLocation("pos"), fsqProgram.GetLocation("texcoord"));
glUseProgram(0);
SwapBuffers(dc);
}
return 0;
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