Fixed a slight color temperature offset when using HDR grading

Chman · Chman · commit 737dee03b849 · 2018-04-12T17:18:02.000+02:00
diff --git a/PostProcessing/Shaders/Colors.hlsl b/PostProcessing/Shaders/Colors.hlsl
@@ -454,9 +454,7 @@ float3 AcesTonemap(float3 aces)
 //
 half3 ApplyLut3D(TEXTURE3D_ARGS(tex, samplerTex), float3 uvw, float2 scaleOffset)
 {
-    float shift = floor(uvw.z);
-    uvw.xy = uvw.xy * scaleOffset.y * scaleOffset.xx + scaleOffset.xx * 0.5;
-    uvw.x += shift * scaleOffset.x;
+    uvw.xyz = uvw.xyz * scaleOffset.yyy * scaleOffset.xxx + scaleOffset.xxx * 0.5;
     return SAMPLE_TEXTURE3D(tex, samplerTex, uvw).rgb;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -454,9 +454,7 @@ float3 AcesTonemap(float3 aces)`
`454`	`454`	`//`
`455`	`455`	`half3 ApplyLut3D(TEXTURE3D_ARGS(tex, samplerTex), float3 uvw, float2 scaleOffset)`
`456`	`456`	`{`
`457`		`- float shift = floor(uvw.z);`
`458`		`- uvw.xy = uvw.xy * scaleOffset.y * scaleOffset.xx + scaleOffset.xx * 0.5;`
`459`		`- uvw.x += shift * scaleOffset.x;`
	`457`	`+ uvw.xyz = uvw.xyz * scaleOffset.yyy * scaleOffset.xxx + scaleOffset.xxx * 0.5;`
`460`	`458`	`return SAMPLE_TEXTURE3D(tex, samplerTex, uvw).rgb;`
`461`	`459`	`}`
`462`	`460`