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Strange Rendering Problem in Device View WM Pro

Started by myklgrant, November 27, 2013, 06:40:59 pm

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November 27, 2013, 06:40:59 pm Last Edit: November 27, 2013, 08:25:26 pm by Remnant

I just installed WM Pro and the device view has a strange rendering problem. See the attached picture.
The program itself works fine.
When you use more devices it becomes quite unmanageable.  Has anyone else seen this problem?

Thank-you for your attention.

Michael Grant


Hi Michael,

This problem has been found by others here:


Just to verify: You are using a nvidia Quadro, and it should appear in all WM versions since WM 2, not just, correct? The problem first appeared in some of the newer drivers -- the old quadro drivers work fine.

As near as I can tell, it's an obscure bug in the nvidia quadro driver. What's happening is the last vertex specified for all of the port quads is somehow being interpreted as zero by the driver.  I've been looking into fixing this, and there's essentially nothing wrong with the draw code -- the only solution on my end is to attempt a work-around to achieve the same thing with alternate means. I have a first attempt at this ready to go -- if you are interested in being a guinea pig, let me know!
-- Stephen Schmitt
- Creator of World Machine

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