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Add depth test for point/spot lights rendering to optimize far lights rendering

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This commit is contained in:
Wojtek Figat
2021-06-08 14:12:56 +02:00
parent 9d9ecb3ba8
commit cfac2db5d2
1 changed files with 15 additions and 11 deletions
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26
Source/Engine/Renderer/LightPass.cpp
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@@ -100,26 +100,28 @@ bool LightPass::setupResources()
psDesc = GPUPipelineState::Description::DefaultNoDepth;
psDesc.BlendMode = BlendingMode::Add;
psDesc.BlendMode.RenderTargetWriteMask = BlendingMode::ColorWrite::RGB;
psDesc.CullMode = CullMode::Normal;
psDesc.VS = shader->GetVS("VS_Model");
if (_psLightPointNormal.Create(psDesc, shader, "PS_Point"))
return true;
psDesc.CullMode = CullMode::Inverted;
if (_psLightPointInverted.Create(psDesc, shader, "PS_Point"))
return true;
psDesc.CullMode = CullMode::Normal;
psDesc.DepthTestEnable = true;
if (_psLightPointNormal.Create(psDesc, shader, "PS_Point"))
return true;
}
if (!_psLightSpotNormal.IsValid() || !_psLightSpotInverted.IsValid())
{
psDesc = GPUPipelineState::Description::DefaultNoDepth;
psDesc.BlendMode = BlendingMode::Add;
psDesc.BlendMode.RenderTargetWriteMask = BlendingMode::ColorWrite::RGB;
psDesc.CullMode = CullMode::Normal;
psDesc.VS = shader->GetVS("VS_Model");
if (_psLightSpotNormal.Create(psDesc, shader, "PS_Spot"))
return true;
psDesc.CullMode = CullMode::Inverted;
if (_psLightSpotInverted.Create(psDesc, shader, "PS_Spot"))
return true;
psDesc.CullMode = CullMode::Normal;
psDesc.DepthTestEnable = true;
if (_psLightSpotNormal.Create(psDesc, shader, "PS_Spot"))
return true;
}
if (!_psLightSkyNormal->IsValid() || !_psLightSkyInverted->IsValid())
{
@@ -203,7 +205,9 @@ void LightPass::RenderLight(RenderContext& renderContext, GPUTextureView* lightB
PerFrame perFrame;
// Bind output
context->SetRenderTarget(lightBuffer);
GPUTexture* depthBuffer = renderContext.Buffers->DepthBuffer;
GPUTextureView* depthBufferHandle = depthBuffer->GetDescription().Flags & GPUTextureFlags::ReadOnlyDepthView ? depthBuffer->ViewReadOnlyDepth() : nullptr;
context->SetRenderTarget(depthBufferHandle, lightBuffer);
// Set per frame data
GBufferPass::SetInputs(renderContext.View, perFrame.GBuffer);
@@ -221,7 +225,7 @@ void LightPass::RenderLight(RenderContext& renderContext, GPUTextureView* lightB
context->BindSR(0, renderContext.Buffers->GBuffer0);
context->BindSR(1, renderContext.Buffers->GBuffer1);
context->BindSR(2, renderContext.Buffers->GBuffer2);
context->BindSR(3, renderContext.Buffers->DepthBuffer);
context->BindSR(3, depthBuffer);
context->BindSR(4, renderContext.Buffers->GBuffer3);
// Check if debug lights
@@ -270,7 +274,7 @@ void LightPass::RenderLight(RenderContext& renderContext, GPUTextureView* lightB
ShadowsPass::Instance()->RenderShadow(renderContext, light, shadowMaskView);
// Bind output
context->SetRenderTarget(lightBuffer);
context->SetRenderTarget(depthBufferHandle, lightBuffer);
// Set shadow mask
context->BindSR(5, shadowMaskView);
@@ -325,7 +329,7 @@ void LightPass::RenderLight(RenderContext& renderContext, GPUTextureView* lightB
ShadowsPass::Instance()->RenderShadow(renderContext, light, shadowMaskView);
// Bind output
context->SetRenderTarget(lightBuffer);
context->SetRenderTarget(depthBufferHandle, lightBuffer);
// Set shadow mask
context->BindSR(5, shadowMaskView);
@@ -366,7 +370,7 @@ void LightPass::RenderLight(RenderContext& renderContext, GPUTextureView* lightB
ShadowsPass::Instance()->RenderShadow(renderContext, light, lightIndex, shadowMaskView);
// Bind output
context->SetRenderTarget(lightBuffer);
context->SetRenderTarget(depthBufferHandle, lightBuffer);
// Set shadow mask
context->BindSR(5, shadowMaskView);