Shawn Soeder (shawn_soeder++at++atdc.northgrum.com)
30 May 1997 13:20:41 -0400
Performers,
I'd like to do distortion correction for three channels projected onto a
spherical dome using an single- (soon to be multi-) pipe IR machine. Can
anyone direct me to any info on the subject?
If there are no references, is the following roughly in the right direction?
1) Make two pfScenes, one with the geometry I want to render and one with the
geometry for the correction.
2) Render the first pfScene into three channels that cover the required area.
3) After the pfDraw, copy the framebuffer to texture memory using
pfSubloadTex.
4) Reconfigure the channels to their proper size/orientation for the second
pass.
5) Render the second pfScene into the three channels, projecting the
downloaded texture onto the new geometry.
6) Send the output to the projectors in the dome.
7) Look at the results, smile and experience quiet satisfaction.
Thanks
Shawn
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