On 0, John Manko <jmanko@monkeynet.org> wrote: [snip] > Also, according to 1.4 specs: > > The state required for clipping is at least 6 sets of plane equations > (each consisting of four double-percision floating-point coefficients) > and at least 6 corresponding bits indicating which of these > client-defined plane equations are enabled. In the initial state, all > client-defined plane equation coeffients are zero and all planes are > disabled. > > .. but I'm sure you've read that. Indeed I have, although it was in the 1.2 spec (since that is the version that mesa 3.2.4 implements, and that is what is in woody/sarge). The import of it seems to be that you only need define the clipping planes you want to use, because you will (presumably) only enable those ones. I think the statements about minimum state required to implement features that are scattered through the spec are aimed more at people implementing the spec than people using an implementation, but I may be very wrong about that. Tom -- Tom Cook Information Technology Services, The University of Adelaide "Chaos Theory is a new theory invented by scientists panicked by the thought that the public were beginning to understand the old ones." - Mike Barfield Get my GPG public key: https://pinky.its.adelaide.edu.au/~tkcook/tom.cook-at-adelaide.edu.au
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