dynamically changing materials

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John A. Collier (jcollier++at++alexandra.mtl.com)
Tue, 15 Nov 1994 07:36:55 -0500

Hello,

I am trying to switch materials between 2 channel draws. The idea is to have
the same image in both windows but with different colors. It works when I am
not trying to switch channels and just change the materials upon a keystroke
on one channel. The materials flicker in both windows when running on both
channels.

I issue a
        pfChanTravMode(pfchan,PFTRAV_CULL,(PFCULL_VIEW ));

        to eliminate cull sorting.

For channel 0, I then issue a
        pfGStateAttr((pfGeoState *)shared->geostates[index],
                  PFSTATE_FRONTMTL,
                  shared->ir_address[index]);

to place the material at shared->ir_address[index] in the geostate
at shared->geostates[index].

For channel 1, I issue the same command but to a different material address.

I am running on a simgle pipe Onyx.

Any suggestions?

Thanks for your time,
John

-- 
John A. Collier					e-mail:	jcollier++at++mtl.com
MTL Systems, Inc.				voice:	(513) 426-3111
3481 Dayton-Xenia Rd.				fax:	(513) 426-8301
Dayton, OH 45432-2796

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