3D rendering slow (the first time) after selecting 3D shapes

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1 total messages Started by J. G. Gregory Sat, 26 Sep 1992 16:54

#1618

Author: J. G. Gregory
Date: Sat, 26 Sep 1992 16:54

17 lines
1218 bytes

I'm encountering a performance problem with [N3DCamera display] used in  
conjunction with [N3DCamera selectShapesIn:].  Any help or advice would be  
appreciated.

After using [N3DCamera selectShapesIn:] to pick 3D objects,  the first time I  
redisplay the camera  (using [N3DCamera display],) the system spins for several  
seconds before displaying the objects.  If I display again, the redisplay is  
instantaneous.  I only get this initial delay after calling selectShapesIn: ;   
anything else that I call in between redisplays doesn't cause this delay.  The  
delay varies somewhat with the screen size of the Camera view, but is awkward  
even in a small view.

Is there something I can cache or lock down to prevent this delay?  I have  
called [View allocGState] already, if that's relevant, but to no avail.

Thanks in advance,
--J Gregory

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