Angus Dorbie (dorbie++at++bitch.reading.sgi.com)
Sat, 18 May 1996 14:56:25 +0100
I expect you'll experience some problems with the lighting & shading across
clipped edges but that should be about the only difficulty & will depend on
your scene.
Rgds,
Angus.
On May 17, 8:56pm, Steve Baker wrote:
> Subject: Overlaying one channel with another.
>
> Can anyone tell me if this will work... I want to render the scene as two
> channels that overlay each other, one covers the entire screen, the other
> just a small part of the screen, overlapping the first...
>
>
> +---------------------------------+
> |Channel A |
> | +----+ |
> | | | |
> | +----+ |
> | Channel B |
> | |
> | |
> | |
> +---------------------------------+
>
> I carefully choose the frustum of B so that the pixels it renders are
theoretically
> identical to those of channel A.
>
> If I slide channel B around on the screen, continuously adjusting it's view
> frustum appropriately, will I see strange swimming anomalies around it's
edges?
>
> I appreciate that I would have to carefully override Performer's automatic
> LOD transition range adjustments - but what else might happen?
>
> Thanks in advance...
>
> Steve Baker
>
>
>
>
> Steve Baker 817-323-1361 (Vox-Lab)
> Hughes Training Inc. 817-695-8776 (Vox-Office/vMail)
> 2200 Arlington Downs Road 817-695-4028 (Fax)
> Arlington, Texas. TX 76005-6171 steve++at++mred.bgm.link.com (eMail)
>
>-- End of excerpt from Steve Baker
-- Angus Dorbie, The Reality Centre, Silicon Graphics Ltd, UK dorbie++at++reading.sgi.com
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