On Wed, 2003-09-03 at 11:12, Thomas Emmel wrote:
Back to my problem...
On Tue, 2003-09-02 at 17:24, Keith Whitwell wrote:
Is it correct that your application is using 1-dimensional textures and vertex arrays? This is a little-exercised aspect of the driver, but it shouldn't too hard to fix up. I'll try and rig up something here that exercises the problem.
I have asked the developers and
ABAQUS uses both 1-dimensional and 2-dimensional textures and they are almost always accessed from vertex arrays.
I can disable the use of vertex arrays if this is an alternative
approach.
In the meantime, what does the following patch do?
I have installed it and it works.
Mmmh, I should have tested it in more detail. For some problems it works for some others it give a relatively bad output to the display. But this may be related to some other stuff than the given patch. I cannot compare it to the unpatched version since there was nothing to display due to the crash of my application. I have attached two small pictures illustrating the problem: modell-part.png is how it should look like. fail-texture.png how it is displayed on the screen. Maybe it is related to the size or number of arrays or something like that. The model I had tested before was a very small one.
Keith: As far as I can follow you (AFAICFY :-), the patch is only a temporarily workaround and I should wait for something more sophisticated?
I was a little suprised when you said it fixed your problems. It's committed - it is certainly part of the solution, but there's probably more to do. If you want to help out, the most useful thing is to have a look through the mesa demos and find one that does something similar to your app (texcoords, vertex arrays), and modify it so that it matches the behaviour exactly. Or else write a little demo from scratch. It's really the best way to present a bug to the developers - as a working demonstration.
If you don't do this, I'll have to do the same thing to exercise the problem enough to make a solution.
Keith
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