Fix backfacing AO

pragma37 · pragma37 · commit 08949f94ea27 · 2024-07-13T17:07:27.000+02:00
diff --git a/Malt/Pipelines/NPR_Pipeline/Shaders/NPR_Pipeline/NPR_Filters.glsl b/Malt/Pipelines/NPR_Pipeline/Shaders/NPR_Pipeline/NPR_Filters.glsl
@@ -29,7 +29,7 @@ float ao(int samples, float radius, float distribution_exponent, float contrast,
         vec3 normal = NORMAL;
         #ifdef IS_MESH_SHADER
         {
-            normal = IO_NORMAL;
+            normal = is_front_facing() ? IO_NORMAL : -IO_NORMAL;
         }
         #endif
         float ao = ao(IN_NORMAL_DEPTH, 3, POSITION, normal, samples, radius, distribution_exponent, bias);

Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,7 @@ float ao(int samples, float radius, float distribution_exponent, float contrast,`
`29`	`29`	`vec3 normal = NORMAL;`
`30`	`30`	`#ifdef IS_MESH_SHADER`
`31`	`31`	`{`
`32`		`- normal = IO_NORMAL;`
	`32`	`+ normal = is_front_facing() ? IO_NORMAL : -IO_NORMAL;`
`33`	`33`	`}`
`34`	`34`	`#endif`
`35`	`35`	`float ao = ao(IN_NORMAL_DEPTH, 3, POSITION, normal, samples, radius, distribution_exponent, bias);`