Re: GL_MAX_TEXTURE_UNITS_ARB on a Geforce 7900

  Can anyone explain why an nVidia 7900GS (driver version 91.45) reports only 4 texture units from GL_MAX_TEXTURE_UNITS_ARB?

Because that is the maximum amount of texture units it supports in the static OpenGL implementation.
For shaders different limits apply.
The amount of texture units available in the fragment shader can be queried with GL_MAX_TEXTURE_IMAGE_UNITS
For the vertex shader query GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS

Regards

Serge van Keulen


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