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[HDRP] Fix white flash with SSR when resetting camera history #5089

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Merged
merged 4 commits into from
Jul 9, 2021
Merged

[HDRP] Fix white flash with SSR when resetting camera history #5089

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a0a416d
Fix white flash with SSR when resetting camera history
pmavridis Jul 7, 2021
9d3e35d
Move branch login inside GetPreviousExposureTexture
pmavridis Jul 7, 2021
3e92ef5
Fix for fixed exposure
pmavridis Jul 8, 2021
9e97a59
Merge remote-tracking branch 'origin/hd/bugfix' into HDRP/ssr_flash
pmavridis Jul 8, 2021
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1 change: 1 addition & 0 deletions com.unity.render-pipelines.high-definition/CHANGELOG.md
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Expand Up @@ -280,6 +280,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
- Fixed gbuffer depth debug mode for materials not rendered during the prepass.
- Fixed Vertex Color Mode documentation for layered lit shader.
- Fixed wobbling/tearing-like artifacts with SSAO.
- Fixed white flash with SSR when resetting camera history (case 1335263).

### Changed
- Changed Window/Render Pipeline/HD Render Pipeline Wizard to Window/Rendering/HDRP Wizard
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1 change: 1 addition & 0 deletions com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/Camera/HDCamera.cs
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Expand Up @@ -561,6 +561,7 @@ RTHandle Allocator(string id, int frameIndex, RTHandleSystem rtHandleSystem)
internal HDAdditionalCameraData.TAAQualityLevel TAAQuality { get; private set; } = HDAdditionalCameraData.TAAQualityLevel.Medium;

internal bool resetPostProcessingHistory = true;
internal bool didResetPostProcessingHistoryInLastFrame = false;

internal bool dithering => m_AdditionalCameraData != null && m_AdditionalCameraData.dithering;

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7 changes: 5 additions & 2 deletions ...y.render-pipelines.high-definition/Runtime/RenderPipeline/HDRenderPipeline.PostProcess.cs
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Expand Up @@ -514,6 +514,8 @@ TextureHandle RenderPostProcess(RenderGraph renderGraph,

source = FXAAPass(renderGraph, hdCamera, source);

hdCamera.didResetPostProcessingHistoryInLastFrame = hdCamera.resetPostProcessingHistory;

hdCamera.resetPostProcessingHistory = false;
}

Expand Down Expand Up @@ -779,8 +781,9 @@ internal RTHandle GetExposureTextureHandle(RTHandle rt)

RTHandle GetPreviousExposureTexture(HDCamera camera)
{
// See GetExposureTexture
return GetExposureTextureHandle(camera.currentExposureTextures.previous);
// If the history was reset in the previous frame, then the history buffers were actually rendered with a neutral EV100 exposure multiplier
return (camera.didResetPostProcessingHistoryInLastFrame && !IsExposureFixed(camera)) ?
m_EmptyExposureTexture : GetExposureTextureHandle(camera.currentExposureTextures.previous);
}

RTHandle GetExposureDebugData()
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