Add normal map to clearcoat

1 files changed, 10 insertions, 1 deletions

diff --git a/pbr.cginc b/pbr.cginc
index d79d58d..be1be5a 100755
--- a/pbr.cginc
+++ b/pbr.cginc
@@ -195,7 +195,16 @@ Pbr getPbr(v2f i) {
   pbr.cc_roughness = _Clearcoat_Roughness;
   pbr.cc_roughness_perceptual = sqrt(pbr.cc_roughness);
   pbr.cc_strength = _Clearcoat_Strength;
-#endif
+#if defined(_CLEARCOAT_NORMALS)
+  float3 cc_normal_ts = UnpackNormal(_Clearcoat_Normals.Sample(
+        aniso4_trilinear_repeat_s, uv_parallax * _Clearcoat_Normals_ST.xy +
+        _Clearcoat_Normals_ST.zw));
+  cc_normal_ts.xy *= _Clearcoat_Normals_Strength;
+  pbr.cc_normal = normalize(mul(cc_normal_ts, pbr.tbn));
+#else
+  pbr.cc_normal = i.normal;
+#endif  // _CLEARCOAT_NORMALS
+#endif  // _CLEARCOAT
   propagateSmoothness(pbr);
 
 #if defined(_EMISSIONS) && defined(FORWARD_BASE_PASS)