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Initial work on texture arrays

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This commit is contained in:
FakeShemp
2016-02-26 17:40:35 +01:00
parent f220d8088c
commit 22c391df54
9 changed files with 101 additions and 86 deletions
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src/Engine/Rendering/ShadowPass.cpp
+32 -21
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@@ -106,26 +106,37 @@ float ShadowPass::FindRadius(Frustum& frustum)
void ShadowPass::InitializeFrameBuffers()
{
// Depth texture
glGenTextures(m_CurrentNrOfSplits, m_DepthMap.data());
GLERROR("depthMap failed PRE");
// Depth texture
glGenTextures(1, &m_DepthMap);
for (int i = 0; i < m_CurrentNrOfSplits; i++) {
glBindTexture(GL_TEXTURE_2D, m_DepthMap[i]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, m_ResolutionSizeWidth / (1 /*+ i*/), m_ResolutionSizeHeigth + (1 /*+ i*/), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, glm::vec4(1.f).data);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
//glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
GLERROR("depthMap failed1");
glBindTexture(GL_TEXTURE_2D_ARRAY, m_DepthMap);
GLERROR("depthMap failed2");
glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_DEPTH_COMPONENT16, m_ResolutionSizeWidth, m_ResolutionSizeHeigth, m_CurrentNrOfSplits);
GLERROR("depthMap failed3");
m_DepthBuffer[i].AddResource(std::shared_ptr<BufferResource>(new Texture2D(&m_DepthMap[i], GL_DEPTH_ATTACHMENT)));
m_DepthBuffer[i].Generate();
}
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, 0, m_ResolutionSizeWidth, m_ResolutionSizeHeigth, m_CurrentNrOfSplits, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr);
GLERROR("depthMap failed4");
GLERROR("depthMap failed");
//for (int i = 0; i < m_CurrentNrOfSplits; i++) {
// glBindTexture(GL_TEXTURE_2D, m_DepthMap[i]);
// glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, m_ResolutionSizeWidth / (1 /*+ i*/), m_ResolutionSizeHeigth + (1 /*+ i*/), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
glTexParameterfv(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BORDER_COLOR, glm::vec4(1.f).data);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
//glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
GLERROR("depthMap failed5");
m_DepthBuffer.AddResource(std::shared_ptr<BufferResource>(new Texture2DArray(&m_DepthMap, GL_DEPTH_ATTACHMENT, m_CurrentNrOfSplits)));
m_DepthBuffer.Generate();
//}
GLERROR("depthMap failed END");
}
void ShadowPass::InitializeShaderPrograms()
@@ -141,10 +152,10 @@ void ShadowPass::InitializeShaderPrograms()
void ShadowPass::ClearBuffer()
{
for (int i = 0; i < m_CurrentNrOfSplits; i++) {
m_DepthBuffer[i].Bind();
m_DepthBuffer.Bind();
glClearColor(0.f, 0.f, 0.f, 0.f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_DepthBuffer[i].Unbind();
m_DepthBuffer.Unbind();
}
}
@@ -192,7 +203,7 @@ void ShadowPass::Draw(RenderScene & scene)
UpdateFrustumPoints(m_shadowFrusta[i], scene.Camera->Position(), scene.Camera->Forward(), scene.Camera->ProjectionMatrix(), scene.Camera->ViewMatrix());
//float test = FindRadius(m_shadFrusta[i]);
ShadowPassState* state = new ShadowPassState(m_DepthBuffer[i].GetHandle());
ShadowPassState* state = new ShadowPassState(m_DepthBuffer.GetHandle());
GLuint shaderHandle = m_ShadowProgram->GetHandle();
m_ShadowProgram->Bind();
@@ -230,7 +241,7 @@ void ShadowPass::Draw(RenderScene & scene)
GLERROR("Shadow Draw ERROR");
}
}
m_DepthBuffer[i].Unbind();
m_DepthBuffer.Unbind();
delete state;
}