Re: How to obtain the scree

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Jerry Edsall (jedsall++at++fasainteractive.com)
20 Jul 1997 16:40:49 -0500

RE>>How to obtain the screen posi
On Jul 19, 6:07pm, Ren-Jye Yu wrote:
> Subject: How to obtain the screen position of a point in the environment ?
> Hello,
>
> Is there a command that allows me to obtain the x,y screen pixel
> position of a point in the viewing scene? In other words, how can I obtain
the
> projection matrix in Performer?

>>There's always the pfVec3::xformVec
>>
>>If you use the modelviewing matrix it should give you coordinates -1 to +1
>>which you can then scale to match your viewport.
>>
>>
>>Cheers,Angus.

But woudn't that have to be done in the draw callback? Isn't there a way to do
it in the application?

Jerry

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