Eric Brandwine (ericb++at++mitre.org)
Tue, 19 May 1998 11:54:46 -0400 (EDT)
We currently have an Onyx Reality Station w/MCO, driving 3 projectors
on an ~150 degree arc. The projectors display on 3 flat screens,
like \_/.
We just ordered an Onyx2 IR w/DG8, 3 new projectors w/contrast
modulation, and a single curved screen. We want to do edge blending,
but are not sure of a couple of things.
1) Can the DG8 lay out channels in any geometry? The MCO would allow
you to pick resolution/channel count, but you were stuck with the
layout they gave you (to fit in a 2kx2k virtual buffer).
We run 3++at++960x680, with 3 screens tiled horizontally, while the 3
channels are tiled vertically.
2) How should we set up Performer to drive this projection system?
Right now, we have 3 channels defined, with the center as the
master, the 2 side channels offset ~50 degrees. This means 3
rendering passes for our single pipeline. Is there any way that we
could define a single channel with a 150 degree field of view, and
divide it across 3 outputs of the DG8? Also, how should we get
edge blenging working? Right now, the 3 channels that we are
displaying are not co-planar, so even if we were to increase the
horizontal field of view per channel a bit, and overlap the
projected images, the overlapped region would not match due to the
different geometries. Is this acceptable? Is there some way to
tell Performer to make some number of pixels on the edge of the
channel the same as the next channel over?
Any help would be appreciated!
thanks,
ericb
--
Eric Brandwine, Systems Engineer
EricB++at++Mitre.org
The MITRE Corporation, McLean VA 22102
(703) 883-3319 FAX: (703) 883-1917
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