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Anybody know how to get disparity pass or channel from Maya...It will helpful in stereoscopic....
What do you want the disparity to encode? I mean you hardly ever need dispariy for the setereoscopic imaging form a 3d app since you can allreay do the channels themelves fully intact.
Anyyway it is possible t do this with shaders quite easily. As calculating the value of a point in 2 camera spaces is no trick whatsoever. So getting the value is not exactly rocket science. Just thst you dont need it for anything.
For example the foundrys ocula plugin, wouldnt be needed ina fully 3d environ. As you can warp the render to match your plates. Yes i know you think but not the data in the plates but nothing actually makes it impossible to do lens distortions at render time
But let us suppose you want to morph a rotospline form one image to the next, then just calcualte the point in camera space, minus the point in other camera space in a shader and your there. Offcourse this doesnt work in reality. Its a nie trick and it MAY work but it cant really habdle whan something new arrives in the other view. As you can stilll render mattes form the 3d it wouldn't make much sense. As projecring the matte on a proxy geometry makes more sense.