How vtkMultiBlockDataSet is rendered in vtk

Development
1

Dear Experts,

i put several vtkPolyData into vtkMultiBlockDataSet, i am wondering how vtkMultiBlockDataSet is rendered in VTK if my polyData only contain Lines?

It use VBO technique, one VBO for each vtkMultiBlockDataSet?

Because in my situation, i need render very large number of lines, Points/Spheres with high performance, any suggestion is helpful to me

Thanks in advance!

2

@ken-martin

3

Depends on which mapper you are using. Assuming vtkCompositePolyDataMapper2 It combines polydata into the minimum number of VBOs possible. Multiple polydata can use the same VBO.

4

Thank you Cory for your kind help!