Clanker glitter cleanups

GPT-5.6 sol medium. Asked it to spot any issues, gave it the Kemppinen
et. al. paper and their source code as reference.

1 files changed, 5 insertions, 1 deletions

diff --git a/lighting.cginc b/lighting.cginc
index 8642c1d..db9cee0 100755
--- a/lighting.cginc
+++ b/lighting.cginc
@@ -286,8 +286,12 @@ void GetLighting(v2f i, Pbr pbr, out LightData data) {
   float glitter_roughness = pbr.roughness;
 #endif
 #if defined(_GLITTER_NORMAL_OVERRIDE)
-  float3 glitter_normal = _Glitter_Normal_Override.Sample(bilinear_clamp_s, i.uv01.xy) * 2 - 1;
+  float2 glitter_normal_uv = UV_SCOFF(i, _Glitter_Normal_Override_ST,
+      _Glitter_UV_Channel);
+  float3 glitter_normal = _Glitter_Normal_Override.Sample(
+      bilinear_clamp_s, glitter_normal_uv).xyz * 2 - 1;
   glitter_normal = glitter_normal.xzy * float3(-1, 1, -1);
+  glitter_normal = UnityObjectToWorldNormal(glitter_normal);
   float3x3 tbn = tbn_from_normal_tangent(glitter_normal, i.tangent);
 #else
   float3 glitter_normal = pbr.normal;