Re: [info-performer] Multiple ray intersection

From: MLM Veraart (veraart++at++fel.tno.nl)
Date: 08/04/2003 05:44:01

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Rebecca Lim wrote:
>
> Hi,
>
> Can we get intersection points of multiple ray in a
> single pfSegSet?
>
> I got the correct intersection point when I used only
> one ray but when I used multiple ray, all the other
> rays except the first, are invalid. In fact, I only
> move the direction of ray very slightly. When I swap
> the rays' order, still, the first ray is the only one
> that return an intersection point.
>
> Does anyone know why does this happen?

Have you filled in the pfSegSet::activemask member?
In this bitmask you have to set witch of the pfSeg in segs is valid.

Mario

>
> Thank you,
> Rebecca

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