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ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/Volumetrics/VolumetricLighting.compute

         // Store the feedback for the voxel.
         // TODO: dynamic lights (which update their position, rotation, cookie or shadow at runtime)
         // do not support reprojection and should neither read nor write to the history buffer.
-        // to the history buffer. This will cause them to alias, but it is the only way
-        // to prevent ghosting.
+        // This will cause them to alias, but it is the only way to prevent ghosting.
 
         _VBufferLightingFeedback[voxelCoord] = float4(blendedRadiance, centerTransmInt);
 

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/Volumetrics/VolumetricLighting.cs

 
             int rfc = Time.renderedFrameCount;
             int sampleIndex = rfc % 7;
+
+            // TODO: should we somehow reorder offsets in Z based on the offset in XY? S.t. the samples more evenly cover the domain.
+            // Currently, we assume that they are completely uncorrelated, but maybe we should correlate them somehow.
             Vector4 offset = new Vector4(xySeq[sampleIndex].x, xySeq[sampleIndex].y, zSeq[sampleIndex], rfc);
 
             // Get the interpolated asymmetry value.