1 files changed, 3 insertions, 0 deletions
diff --git a/data.cginc b/data.cginc
index a28d25e..d8c6960 100644
--- a/data.cginc
+++ b/data.cginc
@@ -31,6 +31,9 @@ struct Pbr {
   float cc_roughness_perceptual;
   float cc_strength;
 #endif
+#if defined(_DEBUG_VIEW_TANGENT_SPACE_NORMALS)
+  float3 tangent_normal;
+#endif
 };
 
 struct LightCommon {