Add data.cginc - header for data containers

1 files changed, 36 insertions, 0 deletions

diff --git a/data.cginc b/data.cginc
new file mode 100644
index 0000000..34eacd6
--- /dev/null
+++ b/data.cginc
@@ -0,0 +1,36 @@
+#ifndef __DATA_INC
+#define __DATA_INC
+
+#include "globals.cginc"
+
+// From filament: min roughness s.t. MIN_PERCEPTUAL_ROUGHNESS^4 > 0 in target
+// precision. Although we use fp32, the higher min roughness gives us a broader
+// specular highlight, which is preferable.
+#define MIN_PERCEPTUAL_ROUGHNESS 0.045
+#define MIN_ROUGHNESS            0.002025
+
+struct Pbr {
+  float4 albedo;
+  float3 normal;
+  float3x3 tbn;
+  float smoothness;
+  float roughness_perceptual;
+  float roughness;
+  float metallic;
+#if defined(_EMISSIONS) && defined(FORWARD_BASE_PASS)
+  float3 emission;
+#endif
+#if defined(_AMBIENT_OCCLUSION)
+  float ao;
+#endif
+#if defined(_BENT_NORMALS)
+  float3 bent_normal;
+#endif
+#if defined(_CLEARCOAT)
+  float cc_roughness;
+  float cc_roughness_perceptual;
+  float cc_strength;
+#endif
+};
+
+#endif  // __DATA_INC