Geomview For Windows?
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Red/Cyan stereo in Geomview
I obtained a copy of the Geomview binary for the SGI via ftp for evaluation (well, to be honest, playing with. I have an application to use it in conjunction with some FEM to model submarine pressure hulls, but it is outside my area of expertise and as a hobby project may come to nothing. BTW, If you know of any public domain FEM package, I would be most interested, as I was thinking of writing something rather crude myself). I was experimenting with the stereo capability in Geomview. I made some red/blue glasses, but had problems with the Cyan display. If I selected edges only and viewed one of the simple polyhedra in stereo, I would see only one image through the red lens. But I was unable to adjust the colour of the edges so that I could see only one image through the blue lens. It seems to me that as the display is in fact composed of three coloured phosphors, and makes other colours by addition, that one could only obtain distinct images if the left and right images activated only one phosphor, and my lenses passed only light from the corresponding phosphor. This would suggest that the two images should be in a pair of the primary phosphor colours, red, green or blue, rather than using cyan which the display shows as a mixture of blue and red. I was also having trouble using the stereo viewing angle slider. It may be that I have not properly understood its use, but it seemed to affect the camaera psotition in a non-reversible way (if I moved the slider to the left, then back to the original position, the viewed image did not return to the original state). Andrew Daviel <advax at triumf.ca>
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