Re: bump mapping using Infinite Reality

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Steve Baker (steve++at++mred.bgm.link.com)
Thu, 22 Aug 96 19:25:51 -0500

True bump mapping requires that the IG's lighting calculation
is performed at every pixel (or at the very least, at every texel).

As far as I know, there is no hardware in the iR to perform that
directly.

If you are happy with a non-realtime (or maybe with luck a
near-realtime) solution, then I suppose you could replace
every texel with a teeny-tiny polygon in the DRAW process
and do the appropriate thing with the surface normal. Possibly
(if each map is only used on one polygon) you could recompute
the lighting in software and reload the map every frame.

Apart from that - I think you are stuck.

  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)

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