add machinery for multiple uv channels

1 files changed, 4 insertions, 4 deletions

diff --git a/pbr.cginc b/pbr.cginc
index 7117170..cb6b079 100644
--- a/pbr.cginc
+++ b/pbr.cginc
@@ -54,21 +54,21 @@ Pbr getPbr(v2f i) {
   Pbr pbr = (Pbr) 0;
 
 #if defined(_UV_SCROLL)
-  i.uv0 += getTime() * _UV_Scroll_Speed;
+  i.uv01.xy += getTime() * _UV_Scroll_Speed;
 #endif  // _UV_SCROLL
 
-  pbr.albedo = _MainTex.Sample(aniso16_trilinear_repeat_s, i.uv0 * _MainTex_ST.xy + _MainTex_ST.zw);
+  pbr.albedo = _MainTex.Sample(aniso16_trilinear_repeat_s, i.uv01.xy * _MainTex_ST.xy + _MainTex_ST.zw);
   pbr.albedo *= _Color;
   apply_marble(i.worldPos, pbr.albedo.xyz);
 
-  float3 normal_tangent = UnpackNormal(_BumpMap.Sample(aniso16_trilinear_repeat_s, i.uv0 * _BumpMap_ST.xy));
+  float3 normal_tangent = UnpackNormal(_BumpMap.Sample(aniso16_trilinear_repeat_s, i.uv01.xy * _BumpMap_ST.xy));
   normal_tangent.xy *= _BumpScale;
   // Map from tangent space to world space.
   float3 bitangent = cross(i.normal, i.tangent.xyz) * i.tangent.w;
   pbr.tbn = float3x3(i.tangent.xyz, bitangent, i.normal);
   pbr.normal = normalize(mul(normal_tangent, pbr.tbn));
 
-  float4 metallic_gloss = _MetallicGlossMap.Sample(aniso16_trilinear_repeat_s, i.uv0 * _MetallicGlossMap_ST.xy);
+  float4 metallic_gloss = _MetallicGlossMap.Sample(aniso16_trilinear_repeat_s, i.uv01.xy * _MetallicGlossMap_ST.xy);
   pbr.smoothness = metallic_gloss.a * _Glossiness;
   pbr.metallic = metallic_gloss.r * _Metallic;
 #if defined(_CLEARCOAT)