which: glDrawPixels or glTexImage?

Charles Seberino (seberino++at++or_lab.tu.hac.com)
Fri, 29 Aug 1997 09:30:22 -0700

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Problem:

    I have a floating point array of intensity values (0->1) for an image. I
need to draw this array several frames later into a pfChannel. Would it be
better to call glDrawPixels with my array, or should I create a texture and
apply it to a flat polygon to draw it in the channel? I need to do this
routine every frame. Is there a different method for drawing this to a
channel? I am running on an Onyx2, 2RM 64MB texture, pf2.1.

Any help would be appreciated.

Charles

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Charles Seberino                    Hughes Missile Systems Company
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                                    fax:   (520) 794-8625
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