add 2 new utility functions to the BGE mesh py api.

  mesh.transform(matid, matrix)
  mesh.transform_uv(matid, matrix, uv_index=-1))


much more efficient then looping over verts in python to transform them.

3 files changed, 13 insertions, 0 deletions

diff --git a/source/gameengine/Rasterizer/RAS_MaterialBucket.h b/source/gameengine/Rasterizer/RAS_MaterialBucket.h
index 16ecffb9a32..4c72f128817 100644
--- a/source/gameengine/Rasterizer/RAS_MaterialBucket.h
+++ b/source/gameengine/Rasterizer/RAS_MaterialBucket.h
@@ -189,6 +189,8 @@ class RAS_MeshMaterial
 public:
 	RAS_MeshSlot *m_baseslot;
 	class RAS_MaterialBucket *m_bucket;
+
+	/* the KX_GameObject is used as a key here */
 	CTR_Map<CTR_HashedPtr,RAS_MeshSlot*> m_slots;
 
 
diff --git a/source/gameengine/Rasterizer/RAS_TexVert.cpp b/source/gameengine/Rasterizer/RAS_TexVert.cpp
index 3b4f4cae30e..6d8cbfece15 100644
--- a/source/gameengine/Rasterizer/RAS_TexVert.cpp
+++ b/source/gameengine/Rasterizer/RAS_TexVert.cpp
@@ -151,3 +151,12 @@ void RAS_TexVert::Transform(const MT_Matrix4x4& mat, const MT_Matrix4x4& nmat)
 	SetTangent((nmat*MT_Vector4(m_tangent[0], m_tangent[1], m_tangent[2], 1.0)).getValue());
 }
 
+void RAS_TexVert::TransformUV(const MT_Matrix4x4& mat)
+{
+	SetUV((mat * MT_Vector4(m_uv1[0], m_uv1[1], 0.0, 1.0)).getValue());
+}
+
+void RAS_TexVert::TransformUV2(const MT_Matrix4x4& mat)
+{
+	SetUV2((mat * MT_Vector4(m_uv2[0], m_uv2[1], 0.0, 1.0)).getValue());
+}
diff --git a/source/gameengine/Rasterizer/RAS_TexVert.h b/source/gameengine/Rasterizer/RAS_TexVert.h
index 889769da5ed..bb151a64814 100644
--- a/source/gameengine/Rasterizer/RAS_TexVert.h
+++ b/source/gameengine/Rasterizer/RAS_TexVert.h
@@ -137,6 +137,8 @@ public:
 
 	void				Transform(const class MT_Matrix4x4& mat,
 	                              const class MT_Matrix4x4& nmat);
+	void				TransformUV(const MT_Matrix4x4& mat);
+	void				TransformUV2(const MT_Matrix4x4& mat);
 
 	// compare two vertices, to test if they can be shared, used for
 	// splitting up based on uv's, colors, etc