Cycles: remove approximate subdivision surface with gregory patches code.

It was never fully implemented and will be replaced by OpenSubdiv. Only linear
subdivision remains now. Also includes some refactoring in the split/dice code,
adding a SubdParams struct to pass around parameters more easily.

1 files changed, 1 insertions, 38 deletions

diff --git a/intern/cycles/subd/subd_patch.h b/intern/cycles/subd/subd_patch.h
index 7755740ea0c..b851fef16ae 100644
--- a/intern/cycles/subd/subd_patch.h
+++ b/intern/cycles/subd/subd_patch.h
@@ -22,15 +22,11 @@
 
 CCL_NAMESPACE_BEGIN
 
-class Mesh;
-
-/* Base */
-
 class Patch {
 public:
 	virtual ~Patch() {}
 	virtual void eval(float3 *P, float3 *dPdu, float3 *dPdv, float u, float v) = 0;
-	virtual bool is_triangle() = 0;
+	virtual bool is_triangle() { return false; }
 	virtual BoundBox bound() = 0;
 };
 
@@ -67,39 +63,6 @@ public:
 	BoundBox bound();
 };
 
-/* Bicubic Patch with Tangent Fields */
-
-class BicubicTangentPatch : public Patch {
-public:
-	float3 hull[16];
-	float3 utan[12];
-	float3 vtan[12];
-
-	void eval(float3 *P, float3 *dPdu, float3 *dPdv, float u, float v);
-	bool is_triangle() { return false; }
-	BoundBox bound();
-};
-
-/* Gregory Patches */
-
-class GregoryQuadPatch : public Patch {
-public:
-	float3 hull[20];
-
-	void eval(float3 *P, float3 *dPdu, float3 *dPdv, float u, float v);
-	bool is_triangle() { return false; }
-	BoundBox bound();
-};
-
-class GregoryTrianglePatch : public Patch  {
-public:
-	float3 hull[20];
-
-	void eval(float3 *P, float3 *dPdu, float3 *dPdv, float u, float v);
-	bool is_triangle() { return true; }
-	BoundBox bound();
-};
-
 CCL_NAMESPACE_END
 
 #endif /* __SUBD_PATCH_H__ */