Add burley tiling AO; make LUTS gradient editable

1 files changed, 13 insertions, 3 deletions

diff --git a/lighting.cginc b/lighting.cginc
index c1073d1..f4d210c 100755
--- a/lighting.cginc
+++ b/lighting.cginc
@@ -7,11 +7,12 @@
 #include "UnityLightingCommon.cginc"
 #include "UnityStandardCoreMinimal.cginc"
 
+#include "burley.cginc"
+#include "data.cginc"
 #include "features.cginc"
 #include "filamented.cginc"
 #include "interpolators.cginc"
 #include "LightVolumes.cginc"
-#include "pbr.cginc"
 #include "glitter.cginc"
 #include "poi.cginc"
 
@@ -178,7 +179,14 @@ float4 getIndirectDiffuse(v2f i, Pbr pbr, inout LightData light) {
 
 float getAO(v2f i) {
   float ao = 1;
-#if defined(_AMBIENT_OCCLUSION)
+#if defined(_BURLEY_TILING) && defined(_BURLEY_TILING_AMBIENT_OCCLUSION)
+  ao = saturate(lerp(
+      1.0,
+      burley_sample_scalar(
+          _Burley_Tiling_Ambient_Occlusion_Map,
+          _Burley_Tiling_Ambient_Occlusion_Map_LUT),
+      _OcclusionStrength));
+#elif defined(_AMBIENT_OCCLUSION)
   ao = saturate(lerp(1.0, _OcclusionMap.Sample(bilinear_repeat_s, i.uv01.xy).r, _OcclusionStrength));
 #endif
   return ao;
@@ -211,12 +219,15 @@ float getSpecularAO(v2f i, Pbr pbr, LightData data, float3 reflect_dir) {
 
 void GetLighting(v2f i, Pbr pbr, out LightData data) {
 	data = (LightData) 0;
+  data.common.ao = 1.0f;
+  data.common.spec_ao = 1.0f;
 
 	float3 view_dir = normalize(i.eyeVec.xyz);
 
 	data.common.V = -view_dir;
 	data.common.N = pbr.normal;
   data.common.NoV = max(1e-4, dot(pbr.normal, data.common.V));
+  data.common.ao = getAO(i);
 #if defined(_CLEARCOAT)
   data.common.NoV_cc = max(1e-4, dot(pbr.cc_normal, data.common.V));
 #endif
@@ -274,7 +285,6 @@ void GetLighting(v2f i, Pbr pbr, out LightData data) {
       pbr.normal, data.common.V, data.direct.H, glitter_indirect_dir);
 #endif
 
-  data.common.ao = getAO(i);
   data.common.spec_ao = getSpecularAO(i, pbr, data, reflect_dir);
 
 #if defined(_CLEARCOAT)