Randy Sims (randal.sims++at++srs.gov)
Fri, 16 Jan 1998 10:13:26 -0500
First, in the Programmer's Guide, there's this paragraph in "Texture
Memory and Hardware Support Checking" ...
During the checking phase, IRIS Performer also checks to see if
cliptextures are supported in hardware on the system. To
cliptexture properly, the clipped levels need hardware support. If
cliptexturing isn't supported, then the cliptexture is
reconfigured so only the unclipped, pyramid levels are loaded, and
indicates to the system that the texture is a normal MIPmap. The
rest of the cliptexture support is unchanged. This means that
image caches in the pyramid levels will still work. This feature
allows the application writer to run and do some testing of
cliptexturing applications even if the system it's run on doesn't
support cliptexturing.
Would someone explain more fully ...
The rest of the cliptexture support is unchanged.
and "this means" ...
... that image caches in the pyramid levels will still work. This
feature allows the application writer to run and do some testing
of cliptexturing applications even if the system it's run on
doesn't support cliptexturing.
Next in ASD, ...
An ASD node may very likely have more than one texture in it,
so it contains more than one pfGeoState; one for each
texture. gstateid specifies the pfGeoState object the triangle
face uses.
I'm confused here. What happens with multiple textures with associated
automatic texture coordinate generation through pfTexGen?
-- Randal N. Sims (Randy) | Tel: (803)725-1387 Westinghouse Savannah River Co. | Fax: (803)725-2823 SRS, 773-A, A1128, Rm. 2 | Email: randal.sims++at++srs.gov Aiken, SC 29808-0001 USA | URL: "under construction"DISCLAIMER: The opinions expressed are mine and do not necessarily represent Westinghouse Savannah River Co. or the United States Department of Energy.
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