Large coordinates effecting decals

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`Bwana' Bob Buckley (bbuckley++at++ctaeng.com)
Wed, 22 Feb 1995 10:38:42 -0700

Hello all,

We've been developing large geospecific databases (lambert projection, central
US origin) and naturally have been generating large coordinates ~2Mm. While
testing a western coast area we're getting decaling artifacts. The artifacts
only occur on a Onyx/RE2 but appear correct on a 320/VGXT. I assume this occurs
because of the default decaling mode of PFDECAL_BASE_FAST on each platform.
What is the reason behind differences in the implementations? Isn't this
decaling mode performed in screen space which would properly render independent
of hardware?

Also, when running MCO with 3 channels (3 ++at++ 960 X 680) what should the expected
relative frame times be? Should they all be withinsay ~10% of each other? What
might the causes of extrememly differing frame times be between channel 0 and 1
& 2?

Thanks

===========================================================================
'Bwana' Bob Buckley CTA, Inc.
Sr. Software Engineer 5670 Greenwood Plaza Blvd
Visual Systems Englewood, CO 80111
(303) 889-1207 (303) 889-1200
bbuckley++at++ctaeng.com (303) 889-1398 Fax
===========================================================================

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