Fix first frame of SSR PRB Accumulation (#5324)

skhiat · web-flow · commit 94fc22b6374e · 2022-02-02T12:42:33.000+01:00
* Fix first frame for SSR Accumulation algorithm

* Add ChangeLog

* Fix CHANGELOG merge
diff --git a/com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/HDRenderPipeline.LightLoop.cs b/com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/HDRenderPipeline.LightLoop.cs
@@ -1123,7 +1123,7 @@ void UpdateSSRConstantBuffer(HDCamera hdCamera, ScreenSpaceReflection settings,
             cb._ColorPyramidUvScaleAndLimitPrevFrame = HDUtils.ComputeViewportScaleAndLimit(hdCamera.historyRTHandleProperties.previousViewportSize, hdCamera.historyRTHandleProperties.previousRenderTargetSize);
             cb._SsrColorPyramidMaxMip = hdCamera.colorPyramidHistoryMipCount - 1;
             cb._SsrDepthPyramidMaxMip = hdCamera.depthBufferMipChainInfo.mipLevelCount - 1;
-            if (hdCamera.isFirstFrame || hdCamera.cameraFrameCount <= 2)
+            if (hdCamera.isFirstFrame || hdCamera.cameraFrameCount <= 3)
             {
                 cb._SsrAccumulationAmount = 1.0f;
             }

Original file line number	Diff line number	Diff line change
`@@ -1123,7 +1123,7 @@ void UpdateSSRConstantBuffer(HDCamera hdCamera, ScreenSpaceReflection settings,`
`1123`	`1123`	`cb._ColorPyramidUvScaleAndLimitPrevFrame = HDUtils.ComputeViewportScaleAndLimit(hdCamera.historyRTHandleProperties.previousViewportSize, hdCamera.historyRTHandleProperties.previousRenderTargetSize);`
`1124`	`1124`	`cb._SsrColorPyramidMaxMip = hdCamera.colorPyramidHistoryMipCount - 1;`
`1125`	`1125`	`cb._SsrDepthPyramidMaxMip = hdCamera.depthBufferMipChainInfo.mipLevelCount - 1;`
`1126`		`- if (hdCamera.isFirstFrame \|\| hdCamera.cameraFrameCount <= 2)`
	`1126`	`+ if (hdCamera.isFirstFrame \|\| hdCamera.cameraFrameCount <= 3)`
`1127`	`1127`	`{`
`1128`	`1128`	`cb._SsrAccumulationAmount = 1.0f;`
`1129`	`1129`	`}`