Add extra vertex buffer to Result

QTProject/subdivision.cpp

@@ -109,11 +109,13 @@ void Subdivision::subdivide(Mesh *mesh, int level) {
         QVector<unsigned int> irregular_ib;
         trianglesToIB(irregular, irregular_ib);
 
+        updateIrregularForDraw(irregular, neighbors, result);
+
         QVector<unsigned int> patches;
         getPatchIndexBuffer(regular, neighbors, patches);
         qCDebug(log_subdiv) << "patches" << patches.length();
 
-        current_mesh->update(result.vb_handle, result.vertex_buffer, result.vertex_buffer, irregular_ib, patches);
+        current_mesh->update(result.vb_handle, result.vertex_buffer, result.vertex_buffer_irregular, irregular_ib, patches);
     }
 }
 
@@ -1037,3 +1039,7 @@ void Subdivision::runEdgeShader(GLuint size, GLuint vb_handle, GLuint edge_indic
 
     edgeShader->release();
 }
+
+void Subdivision::updateIrregularForDraw(const QVector<Triangle> &triangles,QMap<Triangle, Triangle::Neighbors> &neighbors, Result &result){
+    result.vertex_buffer_irregular = result.vertex_buffer;
+}

QTProject/subdivision.h

@@ -41,6 +41,7 @@ private:
     {
       GLuint vb_handle;
       QVector<Vertex> vertex_buffer;
+      QVector<Vertex> vertex_buffer_irregular;
     };
 
     struct Patch
@@ -69,6 +70,7 @@ private:
     void runCopyShader(GLuint size, GLuint vb_in, GLuint vb_out);
     void runVertexShader(GLuint size, GLuint vb_handle, GLuint vertex_indices_handle, GLuint vertex_offsets_handle, GLuint output_handle, GLuint offset_handle);
     void runEdgeShader(GLuint size, GLuint vb_handle, GLuint edge_indices_handle, GLuint output_handle, GLuint offset_handle);
+    void updateIrregularForDraw(const QVector<Triangle> &triangles, QMap<Triangle, Triangle::Neighbors> &neighbors, Result &result);
 
     QVector<unsigned int> patchIBToTriangleIB(QVector<unsigned int> ib);