1 files changed, 7 insertions, 0 deletions
diff --git a/intern/opensubdiv/opensubdiv_evaluator_capi.h b/intern/opensubdiv/opensubdiv_evaluator_capi.h
index 7dcf85cca8d..6d94141e755 100644
--- a/intern/opensubdiv/opensubdiv_evaluator_capi.h
+++ b/intern/opensubdiv/opensubdiv_evaluator_capi.h
@@ -204,6 +204,10 @@ typedef struct OpenSubdiv_Evaluator {
   void (*wrapSrcBuffer)(struct OpenSubdiv_Evaluator *evaluator,
                         struct OpenSubdiv_Buffer *src_buffer);
 
+  // Fill the given buffer with data from the evaluator's extra source buffer.
+  void (*wrapSrcVertexDataBuffer)(struct OpenSubdiv_Evaluator *evaluator,
+                                  struct OpenSubdiv_Buffer *src_buffer);
+
   // Fill the given buffer with data from the evaluator's face varying patch array buffer.
   void (*fillFVarPatchArraysBuffer)(struct OpenSubdiv_Evaluator *evaluator,
                                     const int face_varying_channel,
@@ -224,6 +228,9 @@ typedef struct OpenSubdiv_Evaluator {
                             const int face_varying_channel,
                             struct OpenSubdiv_Buffer *src_buffer);
 
+  // Return true if the evaluator has source vertex data set.
+  bool (*hasVertexData)(struct OpenSubdiv_Evaluator *evaluator);
+
   // Implementation of the evaluator.
   struct OpenSubdiv_EvaluatorImpl *impl;