[info-performer] Bad sort tokens on VPro graphics.

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From: Fred Dech (fdech++at++uchicago.edu)
Date: 10/24/2002 09:32:34

hi.

i recently ported some code from an IR2 to a V12 that interactively varies the
transparency of some pfGeoStates. i don't get warnings on the IR2, but
as soon as i start modifying alpha on the V12, i get plenty. the mod code
looks like:

            /////////////////////////////////////////////////
            if (alpha < 1.0)
                gstate->setMode(PFSTATE_TRANSPARENCY, PFTR_FAST);
            else
                gstate->setMode (PFSTATE_TRANSPARENCY, PFTR_OFF);
            /////////////////////////////////////////////////

            if (gset->getAttrBind(PFGS_COLOR4)==PFGS_OVERALL)
            {
                pfVec4 * colors;

                gset->getAttrLists(PFGS_COLOR4, (void **)&colors, NULL);
                (*colors)[3] = alpha;

            } else {
                pfMaterial * mtl = NULL;
                mtl = (pfMaterial *)gstate->getAttr(PFSTATE_FRONTMTL);
                mtl->setColorMode(PFMTL_FRONT,PFMTL_CMODE_OFF);
                mtl->setAlpha(alpha);
            }

i believe the first conditional ends up being true all the time. i can't
recall why i put this conditional in. 'forgot to comment that one :-o

and the error messages look like:

PF Warning/Usage: Bad sort token 1e00000000
PF Warning/Usage: Bad sort token 47b35a000001600
PF Warning/Usage: Bad sort token 1e0000001e
PF Warning/Usage: Bad sort token 1e00000000
PF Warning/Usage: Bad sort token 1010c17800001600
PF Warning/Usage: Bad sort token 1e0000001e
PF Warning/Usage: Bad sort token 1010bfd800001600
PF Warning/Usage: Bad sort token 1010c14800001600
PF Warning/Usage: Bad sort token 1e00000000
PF Warning/Usage: Bad sort token 1010c6a800001600
PF Warning/Usage: Bad sort token 47b35a000001600
PF Warning/Usage: Bad sort token 1effffffff
PF Warning/Usage: Bad sort token ffffffff0000001e
etc., etc.

once they start, they just keep on 'a comin', until all gstates are set to:
(PFSTATE_TRANSPARENCY, PFTR_OFF).

i'd greatly appreciate any advice on what i might be doing wrong.

thanks.

--fred 

-- 
  Fred Dech   fdech++at++uchicago.edu
  University of Chicago Dept. of Surgery
  Ph: (773) 834-8359, Fax: (773) 702-0564

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