vertexshader / vertexprogram write vertex attributes to vbo?

问题

Is there a way to alter vertex attributes in a vertexshader/vertexprogram and save the changes back into the VBO?

回答1:

Yes, that is called Transform Feedback in OpenGL (or Stream-Out in DirectX):

• http://www.opengl.org/registry/specs/EXT/transform_feedback.txt
• http://www.opengl.org/registry/doc/glspec42.core.20120119.pdf (page 158)
• http://msdn.microsoft.com/en-us/library/windows/desktop/bb205121.aspx

来源：https://stackoverflow.com/questions/9530387/vertexshader-vertexprogram-write-vertex-attributes-to-vbo