Constructive solid geometry (CSG)

OpenGL OpenGL: Basic Coding
1

Is the stencil buffer suited for constructive solid geometry with objects, which
are drawn with GL_Quads for example?

Where are the limits of these technique?

I’m looking for example programms, which are using the stencil buffer for constructive solid geometry (CSG), perhaps with MFC.

2

You may find this thread on the advanced forum informative.

http://www.opengl.org/discussion_boards/cgi_directory/ultimatebb.cgi?ubb=get_topic;f=3;t=012396

3

Can you recommend anything for CSG in OpenGL?

4

It really depends on what you are doing and the complexity of your objects.

The stencil buffer approach requires a lot of fillrate so depending on the speed of your 3d card, there will be a “break even” point where using the stencil buffer technique requires the same time as doing it the hard way by calculating the resulting triangles manually.

I am afraid there is no “one size, fits all” solution and hence I cant recommend a technique.

Regards