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Won't Fix
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0
Found in
Issue ID
1408537
Regression
No
Volumetric fog denoising mode "Gaussian" adds square artifacts.
With certain fog setup, the volumetric denoising option "Gaussian" reduces the quality of the fog by adding filtering artifacts in the fog.
Repro steps:
- Open the scene "VolumetricFilterIssue" scene in the package attached
- Set the camera to look at an edge of the fog with a scale of 5x in the game view to view more clearly the issue.
- Toggle the denoising mode between "Gaussian" and None and observe changes in the scene view
- When using Gaussian, we can see square artifacts in the fog.
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Resolution Note:
When Gaussian is enabled, fetching from V-Buffer has "quadratic construction" disabled (in AtmosphericScattering.hlsl, line 280). This is because the quadratic construction is quite expensive doing 4x 3D texture fetches upon V-Buffer sampling and we don't want the added overhead on top of the Gaussian filter.