retrieving data from GL buffers

Graphics and GPU Programming Programming

Started by halt October 30, 2001 02:08 PM

1 comment, last by halt 22 years, 5 months ago

122

Author

October 30, 2001 02:08 PM

Is there any method to get the data about the vertices and edges of the default objects(for example gluSphere) into the memory array?

Terran Marine

122

October 31, 2001 03:29 AM

I think you''d have to make your a function that draws a certain primitive and returns it''s vertex data.
e.g int vertexData[500] = Primitive(sphere)

That means you have to use your own primitive drawing algorithm.

halt

122

Author

October 31, 2001 06:03 AM

quote:Original post by Terran Marine
I think you''d have to make your a function that draws a certain primitive and returns it''s vertex data.
e.g int vertexData[500] = Primitive(sphere)

That means you have to use your own primitive drawing algorithm.

Oh, no! I thought as much, but in GL there is something like glRenderMode(GL_FEEDBACK), but unfortunately I don''t know how it wortks