[Mesa-users] Texture coordinates are all zero

[Brian Paul]

On 10/21/2014 03:28 PM, Jason Anderssen wrote:
> Hi all,
>
> In Mesa 3D (Windows software llvm) all our texture coordinates are
> coming through as zero.
> Our same code works fine with ATI, NVIDIA, and even Angle (which I know
> uses Direct3D under the covers, but it is an OpenGL ES compliant wrapper).
>
> To verify this, I simply in the shader checked if the texcoord.s is >
> 0.5 and color green, else blue, and sure enough half the image is green
> and half is blue with the other drivers, but with Mesa, it is entirely
> blue. (entirely same program and exe, just different opengl32.dll)
>
> Any ideas what could be causing this?
> Any help would be very appreciated.

Can you make an apitrace of the problem?  Have you tried with softpipe 
(export GALLIUM_DRIVER=softpipe)?

-Brian