1 files changed, 31 insertions, 0 deletions
diff --git a/vertex.cginc b/vertex.cginc
new file mode 100644
index 0000000..0140ff2
--- /dev/null
+++ b/vertex.cginc
@@ -0,0 +1,31 @@
+#ifndef __VERTEX_INC
+#define __VERTEX_INC
+
+#include "custom31.hlsl"
+
+void deform(inout float3 objPos) {
+#if defined(_CUSTOM31_TUBES)
+  float A = _Custom31_Tubes_A;
+  float k = _Custom31_Tubes_k;
+  float t = _Time[2] * _Custom31_Tubes_tk;
+  objPos = c31_deform(objPos, A, k, t);
+#endif  // _CUSTOM31_TUBES
+}
+
+void deform_normal(float3 objPos, inout float3 objNorm, inout float3 objTan) {
+#if defined(_CUSTOM31_TUBES)
+  float A = _Custom31_Tubes_A;
+  float k = _Custom31_Tubes_k;
+  float t = _Time[2] * _Custom31_Tubes_tk;
+  c31_deform_normal(objPos, objNorm, objTan, A, k, t);
+#endif  // _CUSTOM31_TUBES
+}
+
+void propagateObjPos(inout v2f i) {
+  i.worldPos = mul(unity_ObjectToWorld, float4(i.objPos, 1));
+  i.pos = UnityObjectToClipPos(i.objPos);
+  i.eyeVec.xyz = i.worldPos - _WorldSpaceCameraPos;
+}
+
+#endif  // __VERTEX_INC
+