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ScriptableRenderPipeline/HDRenderPipeline/Lighting/VBuffer.hlsl

 
     [branch] if (clampToEdge || isInBounds)
     {
+    #if 0
+        // We could ignore non-linearity at the cost of accuracy.
+        // TODO: visually test this option (especially in motion).
+        float w = d;
+    #else
+    #endif
 
         return SAMPLE_TEXTURE3D_LOD(VBufferLighting, trilinearSampler, float3(uv, w), 0);
     }