FXAANode: Refactor `ApplyFXAA()`. (#33708)

examples/jsm/tsl/display/FXAANode.js

@@ -304,26 +304,25 @@ class FXAANode extends TempNode {
 		const ApplyFXAA = Fn( ( [ uv, texSize ] ) => {
 
 			const luminance = SampleLuminanceNeighborhood( texSize, uv );
-			If( ShouldSkipPixel( luminance ), () => {
+			const finalUv = vec2( uv ).toVar();
 
-				return Sample( uv );
+			If( ShouldSkipPixel( luminance ).not(), () => {
 
-			} );
+				const pixelBlend = DeterminePixelBlendFactor( luminance );
+				const edge = DetermineEdge( texSize, luminance );
+				const edgeBlend = DetermineEdgeBlendFactor( texSize, luminance, edge, uv );
 
-			const pixelBlend = DeterminePixelBlendFactor( luminance );
-			const edge = DetermineEdge( texSize, luminance );
-			const edgeBlend = DetermineEdgeBlendFactor( texSize, luminance, edge, uv );
+				const finalBlend = max( pixelBlend, edgeBlend );
 
-			const finalBlend = max( pixelBlend, edgeBlend );
-			const finalUv = uv.toVar();
+				If( edge.isHorizontal, () => {
 
-			If( edge.isHorizontal, () => {
+					finalUv.y.addAssign( edge.pixelStep.mul( finalBlend ) );
 
-				finalUv.y.addAssign( edge.pixelStep.mul( finalBlend ) );
+				} ).Else( () => {
 
-			} ).Else( () => {
+					finalUv.x.addAssign( edge.pixelStep.mul( finalBlend ) );
 
-				finalUv.x.addAssign( edge.pixelStep.mul( finalBlend ) );
+				} );
 
 			} );