[Mesa3d-dev] [Bug 11774] New: Vertex attributes not assigned locations at link?

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=11774

           Summary: Vertex attributes not assigned locations at link?
           Product: Mesa
           Version: CVS
          Platform: x86 (IA32)
        OS/Version: Windows (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
        AssignedTo: mes...@li...
        ReportedBy: pet...@ar...


Hi,

for my app I called glBindAttribLocation() to bind the position to location
zero, but wanted to let the link step assign other vertex attributes and query
them after with glGetAttribLocation().

The 3Dlabs man page seems to say this is valid (just above the Errors section)
here:

http://developer.3dlabs.com/documents/GLmanpages/glBindAttribLocation.htm

When I run under ATI drivers, any unassigned attribute locations get
sequentially numbered locations assigned to them after linking. Under Mesa they
all get allocated position one, which means I end up loading TexCoords,
Normals, Colours all over the same slot :-)

Is this a bug?

Thanks, Pete


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