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渲染阴影

master
blobt 4 years ago
parent
c411d87c69
commit
f5c0923a52
6 changed files with 108 additions and 78 deletions
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  1. BIN
      .vs/shader3/v14/.suo
  2. 161
      main.cpp
  3. 14
      res/shader/hdr.fs
  4. 7
      res/shader/test.vs
  5. 1
      shader3.vcxproj
  6. 3
      shader3.vcxproj.filters

BIN
.vs/shader3/v14/.suo
View File

161
main.cpp
View File

@ -164,6 +164,9 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
gpuProgram.DetectUniform("U_SpecularLightColor");
gpuProgram.DetectUniform("U_SpecularMaterial");
gpuProgram.DetectUniform("U_EyePos");
gpuProgram.DetectUniform("U_LightProjection");
gpuProgram.DetectUniform("U_LightViewMatrix");
gpuProgram.DetectUniform("U_ShadowMap");
//init 3d model
ObjModel obj, quad, sphere;
@ -256,6 +259,86 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
glUseProgram(0);
depthfbo.Unbind();
HDRfbo.Bind();
glUseProgram(gpuProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUniform4fv(gpuProgram.GetLocation("U_AmbientLightColor"), 1, ambientLightColor);
glUniform4fv(gpuProgram.GetLocation("U_AmbientMaterial"), 1, ambientMaterial);
glUniform4fv(gpuProgram.GetLocation("U_DiffuseLightColor"), 1, diffuseLightColor);
glUniform4fv(gpuProgram.GetLocation("U_DiffuseMaterial"), 1, diffuseMaterial);
glUniform1f(gpuProgram.GetLocation("U_DiffuseIntensity"), diffuseIntensity);
glUniform4fv(gpuProgram.GetLocation("U_LightDirection"), 1, spotLightDirection);
glUniform4fv(gpuProgram.GetLocation("U_SpecularLightColor"), 1, specularLightColor);
glUniform4fv(gpuProgram.GetLocation("U_SpecularMaterial"), 1, specularMaterial);
glUniform4fv(gpuProgram.GetLocation("U_LightPos"), 1, lightPos);
glUniform3fv(gpuProgram.GetLocation("U_EyePos"), 1, eyePos);
glUniform1f(gpuProgram.GetLocation("U_Cutoff"), spotLightCutoff);
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(model));
glUniformMatrix4fv(gpuProgram.GetLocation("V"), 1, GL_FALSE, glm::value_ptr(viewMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("P"), 1, GL_FALSE, glm::value_ptr(projectionMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(normalMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("U_LightProjection"), 1, GL_FALSE, glm::value_ptr(lightprojectionMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("U_LightViewMatrix"), 1, GL_FALSE, glm::value_ptr(lightMatrix));
glBindTexture(GL_TEXTURE_2D, depthfbo.GetBuffer("depth"));
glUniform1i(gaussianProgram.GetLocation("U_ShadowMap"), 0);
obj.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
obj.Draw();
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(quadModel));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(quadNormalMatrix));
quad.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
quad.Draw();
glUseProgram(lightSourceProgram.mProgram);
glUniformMatrix4fv(lightSourceProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(sphereModel));
glUniformMatrix4fv(lightSourceProgram.GetLocation("V"), 1, GL_FALSE, glm::value_ptr(viewMatrix));
glUniformMatrix4fv(lightSourceProgram.GetLocation("P"), 1, GL_FALSE, glm::value_ptr(projectionMatrix));
sphere.Bind(lightSourceProgram.GetLocation("pos"), lightSourceProgram.GetLocation("texcoord"), lightSourceProgram.GetLocation("normal"));
sphere.Draw();
glUseProgram(0);
HDRfbo.Unbind();
/* blur start */
fbo[0].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, HDRfbo.GetBuffer("hdrcolor"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[0].Unbind();
fbo[1].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, fbo[0].GetBuffer("color"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[1].Unbind();
fbo[0].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, fbo[1].GetBuffer("color"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[0].Unbind();
fbo[1].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, fbo[0].GetBuffer("color"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[1].Unbind();
/* blur end */
MSG msg;
while (true)
@ -270,83 +353,6 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
DispatchMessage(&msg);
}
HDRfbo.Bind();
glUseProgram(gpuProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUniform4fv(gpuProgram.GetLocation("U_AmbientLightColor"), 1, ambientLightColor);
glUniform4fv(gpuProgram.GetLocation("U_AmbientMaterial"), 1, ambientMaterial);
glUniform4fv(gpuProgram.GetLocation("U_DiffuseLightColor"), 1, diffuseLightColor);
glUniform4fv(gpuProgram.GetLocation("U_DiffuseMaterial"), 1, diffuseMaterial);
glUniform1f(gpuProgram.GetLocation("U_DiffuseIntensity"), diffuseIntensity);
glUniform4fv(gpuProgram.GetLocation("U_LightDirection"), 1, spotLightDirection);
glUniform4fv(gpuProgram.GetLocation("U_SpecularLightColor"), 1, specularLightColor);
glUniform4fv(gpuProgram.GetLocation("U_SpecularMaterial"), 1, specularMaterial);
glUniform4fv(gpuProgram.GetLocation("U_LightPos"), 1, lightPos);
glUniform3fv(gpuProgram.GetLocation("U_EyePos"), 1, eyePos);
glUniform1f(gpuProgram.GetLocation("U_Cutoff"), spotLightCutoff);
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(model));
glUniformMatrix4fv(gpuProgram.GetLocation("V"), 1, GL_FALSE, glm::value_ptr(viewMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("P"), 1, GL_FALSE, glm::value_ptr(projectionMatrix));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(normalMatrix));
obj.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
obj.Draw();
glUniformMatrix4fv(gpuProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(quadModel));
glUniformMatrix4fv(gpuProgram.GetLocation("NM"), 1, GL_FALSE, glm::value_ptr(quadNormalMatrix));
quad.Bind(gpuProgram.GetLocation("pos"), gpuProgram.GetLocation("texcoord"), gpuProgram.GetLocation("normal"));
quad.Draw();
glUseProgram(lightSourceProgram.mProgram);
glUniformMatrix4fv(lightSourceProgram.GetLocation("M"), 1, GL_FALSE, glm::value_ptr(sphereModel));
glUniformMatrix4fv(lightSourceProgram.GetLocation("V"), 1, GL_FALSE, glm::value_ptr(viewMatrix));
glUniformMatrix4fv(lightSourceProgram.GetLocation("P"), 1, GL_FALSE, glm::value_ptr(projectionMatrix));
sphere.Bind(lightSourceProgram.GetLocation("pos"), lightSourceProgram.GetLocation("texcoord"), lightSourceProgram.GetLocation("normal"));
sphere.Draw();
glUseProgram(0);
HDRfbo.Unbind();
/* blur start */
fbo[0].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, HDRfbo.GetBuffer("hdrcolor"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[0].Unbind();
fbo[1].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, fbo[0].GetBuffer("color"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[1].Unbind();
fbo[0].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, fbo[1].GetBuffer("color"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[0].Unbind();
fbo[1].Bind();
glUseProgram(gaussianProgram.mProgram);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, fbo[0].GetBuffer("color"));
glUniform1i(gaussianProgram.GetLocation("U_MainTexture"), 0);
fsq.Draw(gaussianProgram.GetLocation("pos"), gaussianProgram.GetLocation("texcoord"));
fbo[1].Unbind();
/* blur end */
glFlush();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
@ -374,6 +380,7 @@ INT WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _
glUniform1i(combineProgram.GetLocation("U_HDRTexture"), 1);
fsq.DrawToRightBottom(combineProgram.GetLocation("pos"), combineProgram.GetLocation("texcoord"));
glFlush();
SwapBuffers(dc);
}
return 0;

14
res/shader/hdr.fs
View File

@ -10,9 +10,21 @@ uniform vec3 U_EyePos;
uniform vec4 U_SpecularLightColor;
uniform vec4 U_SpecularMaterial;
uniform sampler2D U_ShadowMap;
varying vec3 V_Normal;
varying vec3 V_WorldPos;
varying vec4 V_LightSpaceFragPos;
float CalculateShadow(){
vec3 fragPos = V_LightSpaceFragPos.xyz/V_LightSpaceFragPos.w;
fragPos = fragPos * 0.5 + vec3(0.5);
float depthInShadowMap = texture2D(U_ShadowMap, fragPos.xy).r;
float currentDepth = fragPos.z;
float shadow = currentDepth > depthInShadowMap ? 1.0 : 0.0;
return shadow;
}
void main()
{
@ -68,7 +80,7 @@ void main()
//gl_FragColor = ambientColor + diffuseColor;
vec4 color = ambientColor + diffuseColor;
vec4 color = ambientColor + diffuseColor * vec4(vec3(1.0 - CalculateShadow()),1.0);
gl_FragData[0] = color;

7
res/shader/test.vs
View File

@ -7,13 +7,20 @@ uniform mat4 P;
uniform mat4 V;
uniform mat4 NM;//Normal Matrix 使用来修正法线的
uniform mat4 U_LightProjection;
uniform mat4 U_LightViewMatrix;
varying vec3 V_Normal;
varying vec3 V_WorldPos;
varying vec4 V_LightSpaceFragPos;
void main()
{
V_Normal = mat3(NM)*normal;
vec4 worldPos = M * vec4(pos, 1.0);
V_WorldPos = worldPos.xyz;
V_LightSpaceFragPos = U_LightProjection * U_LightViewMatrix * worldPos;
gl_Position=P*V*M*vec4(pos,1.0);
}

1
shader3.vcxproj
View File

@ -87,6 +87,7 @@
<None Include="res\shader\hdr.fs" />
<None Include="res\shader\sample_depth_buffer.fs" />
<None Include="res\shader\sample_depth_buffer.vs" />
<None Include="res\shader\test.vs" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">

3
shader3.vcxproj.filters
View File

@ -61,5 +61,8 @@
<None Include="res\shader\fullscreenquad.vs">
<Filter>src</Filter>
</None>
<None Include="res\shader\test.vs">
<Filter>src</Filter>
</None>
</ItemGroup>
</Project>
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