Re: Billboards

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ceti (ceti++at++worldnet.net)
Wed, 16 Oct 1996 09:36:55 +0100

> if (bill = (pfBillboard *)pfdLoadFile("tree.iv")) {
>
> pfVec3 billaxis = pfVec3(1.0f, 0.0f, 0.0f);
> bill->setMode(PFBB_ROT, PFBB_AXIAL_ROT);
> bill->setAxis(billaxis);
> parent->addChild(bill);
> }
>
>I get a core dump when it gets to the setMode line. Does this code look
>reasonable, or have I missed something?

The setting for the Bboard seems to be correct.
I don't work with the C++ api and so the only point that strikes me is the
vector setting, I'd better try pfSetVec3(billaxis,1.0f, 0.0f, 0.0f);

>Also, the Inventor file I am using has a transparent texture , but
>transparency doesn't seem to be working. Any suggestions?
Yes, and certainly a good one !
you have to set transparency at high quality
pfGStateMode(TheGeoStateThatNeedsIt,PFSTATE_TRANSPARENCY,PFTR_HIGH_QUALITY)

If you have still problem, I can send you a recurse function that takes a
pfNode as input and sets transparency for all GState childs.
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