Eevee: Offset the for each AA sample.

This means we have less overall noise for rendered image.
SSR, AO, and Refraction are affected by this change.

SSR still exhibit artifacts because the reconstruction pattern needs to change every frame (TODO).

1 files changed, 1 insertions, 4 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/ambient_occlusion_lib.glsl b/source/blender/draw/engines/eevee/shaders/ambient_occlusion_lib.glsl
index e346009bba8..2202ee605fc 100644
--- a/source/blender/draw/engines/eevee/shaders/ambient_occlusion_lib.glsl
+++ b/source/blender/draw/engines/eevee/shaders/ambient_occlusion_lib.glsl
@@ -23,7 +23,7 @@ uniform ivec2 aoHorizonTexSize;
 #define aoFactor     aoParameters[0].z
 #define aoInvSamples aoParameters[0].w
 
-#define aoOffset     aoParameters[1].x
+#define aoOffset     aoParameters[1].x /* UNUSED */
 #define aoBounceFac  aoParameters[1].y
 #define aoQuality    aoParameters[1].z
 #define aoSettings   aoParameters[1].w
@@ -76,8 +76,6 @@ float get_phi(ivec2 hr_co, ivec2 fs_co, float sample)
 	}
 	/* Blue noise is scaled to cover the rest of the range. */
 	phi += aoInvSamples * blue_noise;
-	/* Rotate everything (for multisampling) */
-	phi += aoOffset;
 	phi *= M_PI;
 
 	return phi;
@@ -91,7 +89,6 @@ float get_offset(ivec2 fs_co, float sample)
 	/* Interleaved jitter for spatial 2x2 denoising */
 	offset += 0.25 * dot(vec2(1.0), vec2(fs_co & 1));
 	offset += texture(utilTex, vec3((vec2(fs_co / 2) + 0.5 + 16.0) / LUT_SIZE, 2.0)).r;
-	offset = fract(offset + aoOffset);
 	return offset;
 }