Re: One more question

New Message Reply Date view Thread view Subject view Author view

Jim Helman (jimh++at++surreal)
Sat, 20 Nov 93 13:44:14 -0800

   
> I am having probems getting performer to load 1 or 4 component textures on a
> onyx - I am using pfLoadTexFile. 3 component looks fine but 1 or 4
> get loaded as 3 causing some strange results. Is there something else I need
> to do ?

Should work. What does istat say about the depth? What application is creating
the textures?
   
> And one last question, on an onyx is 4 bit per component texture quicker than
> 8 bit. I have a feeling that the texture bus is 16 bits wide but I am not sure.

16 bit texels are about twice as fast as 32 bit texels. By default,
Performer uses what is fastest rather than prettiest. It can be
specified using pfTexFormat, e.g. for RGB or RGBA textures:
pfTexFormat(tex, PFTEX_INTERNAL_FORMAT, PFTEX_RGBA8)

rgds,

-jim helman

jimh++at++surreal.asd.sgi.com
415/390-1151

New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:50:06 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.