What is the core part of OCCT for visual representation?

Hi All,

I'd like to know on what premises( pure OpenGL or DirectX) or on which architecture OCCT relies on for visual representation/animation of spatial objects. Based on OCCT installation I saw that OCCT creates VTK 6.1 folder on its installation folder.

If OCCT uses VTK, I'd like to also know how is the visual performance with large amounts of objects e.g. 20K in scene ?


Forum supervisor's picture

Dear Sonya,

OCCT normally uses OpenGL for display of CAD data; it also can display in VTK view, this is optional (intended for projects that are bound to VTK).

Best regards