Re: pfTranslate

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Ran Yakir (rany++at++bvr.co.il)
Thu, 11 Aug 1994 08:51:44 +0000

On Aug 10, 5:20pm, Ekkehard Klaerner wrote:
> Subject: pfTranslate
>
> Hi ,
>
> Is the use of pfTranslate and pfRotate in nodeDrawCallbacks faster
> than pfSCS, if we just need translation and rotation ?

Note that the Draw process normally processes a display list, prepared in the
Cull process. I suppose that the display list contains the pushmatrix(),
translate(), rotate(), etc for the SCS already. If you insert draw callbacks,
they are bound to be called from inside the processing of the display list. I
don't think there is a chance that this thing will not hurt you. Function call
takes time too. From my experience, node callbacks create a lot of overhead if
they occur many times in a frame.

Ran

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