Re: Texture minification filter PF_ vs GL_

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Angus Dorbie (dorbie++at++sgi.com)
Wed, 21 Oct 1998 14:29:35 -0700

Jean-Luc Dery wrote:
>
> Hi folks,
>
> I'm having a hard time figuring out the mipmapping token equivalents of OpenGL
> within Performer. Basically, OGL provides the following tokens for the texture
> minification filtering:
>
> GL_NEAREST PF_POINT
> GL_LINEAR PF_LINEAR
> GL_NEAREST_MIPMAP_NEAREST PF_???
> GL_LINEAR_MIPMAP_NEAREST PF_???
> GL_NEAREST_MIPMAP_LINEAR PF_???
> GL_LINEAR_MIPMAP_LINEAR PF_???
>
> Which would be the equivalents in Performer ???

          PFTEX_MIPMAP_POINT
          PFTEX_MIPMAP_LINEAR
          PFTEX_MIPMAP_BILINEAR
          PFTEX_MIPMAP_TRILINEAR

Derived from IrisGL tokens. Just use the OpenGL tokens if you are in any
doubt.

>
> And what exactly is PF_BILINEAR and PF_TRILINEAR ???

Magnification filters for 2D & 3D textures.
Again, just use the OpenGL tokens if in doubt.

Cheers,Angus.

-- 
"Only the mediocre are always at their best." -- Jean Giraudoux 


For advanced 3D graphics Performer + OpenGL based examples and tutors:
http://www.dorbie.com/

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