Timothy Moore (moore++at++WOLFENET.com)
Mon, 23 Sep 1996 11:04:48 -0700 (PDT)
Programming in IrisGL should be avoided if possible:
- It will not evolve. Since Impact and IR, every new feature is available through OpenGL, not IRISGL. For example, there is no clipmapping under IrisGL.
- It is slower than OpenGL on OpenGL based machines. It is using a software implementation of IrisGL named IGLOO.
On the other hand, there is a pretty good implementation of OpenGL on RealityEngine, and generally as fast as IRISGL.
So, the answer is : WRONG. use OpenGL.
However, there are RealityEngine features that aren't supported yet in
OpenGL to wit, spline-based fog. We'd love to dump the IrisGL version
of our code but can't because we rely heavily on that feature. Is
there going to be a patch to support the spline fog extension in the
RE2 OpenGL implementation?
Tim
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