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helda
01-04-2003, 05:34 AM
Hello,

I have a question about the accumulation buffer. I only want to know, how i can check, if my hardware support a accumulation buffer, and if it is supported how to activate it.

thank you for reply

helda

DFrey
01-04-2003, 01:28 PM
As the accumulation buffer is a core feature of OpenGL, all implementations support it. Although, next to none support it in hardware. OpenGL itself provides no direct means of determining if a feature is hardware accelerated. The best you can do is either benchmark the performance of it and let your application decide, or use an appropriate API call to determine the features of the installed hardware. Another less desirable option is simply doing a compare of the GL_RENDERER string and see if it is one of the known renderer's that supports the feature in hardware. If you took that route, I would provide the user of some means of overriding the application in case the application fails to recognize the renderer.

[This message has been edited by DFrey (edited 01-04-2003).]