Viewport cropping / viewport material

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  09 September 2013
Viewport cropping / viewport material

Hi I have a couple related questions. Long time max user but never ran into this problem before - It's related to projection mapping, but probably not smart to get wrapped up in that little detail (I've combed the forums for all the regular projection mapping techniques, but got no solution)

1. Is there a way to crop the viewport to a specific object? Meaning you'd be seeing through the viewport camera, but it would be cropped to the extents of a plane. This would imply not only cropping, but also if the camera is moved obliquely to the object, the viewport image would be skewed/distorted (in the same way an image is when you apply camera map or projection)

2. Another way I could solve this is if it's possible to map a viewport to a material / a plane. This would mean you're looking through a viewport at another viewport which is projected on a on a plane. I would need this to happen in real-time without rendering out the animation.

Any thoughts? its difficult to describe, but if you have any input it would be greatly appreciated.

  09 September 2013
Another thing that would answer this is if i'm able to change the near-plane of a camera. I need to have control of an asymmetric view frustum. Any ideas?
  09 September 2013
Try the Skew modifier on the camera.
Maxscript Made Easy...
  09 September 2013
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