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- From: "Tom (mobile)" <tom.fogal@gmail.com>
- To: iv3d-users@sci.utah.edu
- Subject: [IV3D-USERS] Re: blank render window on Lenovo X220
- Date: Thu, 22 Sep 2011 19:25:44 -0600
Yeah, there's a bug in the intel drivers that give
us the wrong gl uniform ID when we try to look up
a shader variable. I think we had a hack around it,
but it just exposed another bug.
Someday I hope to fix Mesa.. never seem to find
the time. We've notified intel about the windows
driver bug, but a while ago and it doesn't seem to
be getting looked at...
Sorry. Stick to nvidia on linux for now, or
nvidia/ati on windows. Mac's driver actually plays
well with intel cards, as I remember, FWIW...
-tom
----- Original message -----
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I've recently acquired a Lenovo X220 laptop with the new IntelHD
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integrated graphics processor. ImageVis3D runs, but after loading data
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set the render window remains blank, just an empty black window. If I
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turn on local or global outlines I see the rectangles drawn around the
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missing render data and these rotate just as if the program was working
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properly.
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If I start the program from the command line in Ubuntu 11.4, the
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following errors are listed:
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Mesa: User error: GL_INVALID_OPERATION in glUniform(type mismatch)
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When using other volume rendering software that relies on openGL
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hardware support, the rendering occurs normally. I've tested the system
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using GL_gears which operates normally. I see a similar problem when
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running iv3d under Win7.
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All OS's are 64 bit and in the case of the linux version, I've
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downloaded the latest svn version and locally compiled, all without
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success.
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Any help would be greatly appreciated.
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Wade J. Sigurdson, Ph.D.
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Director Confocal Microscope and Flow Cytometry Facility
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University at Buffalo
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Buffalo, NY
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