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#101485
Oliver Kreylos
Keymaster

If you can live with overprojection, meaning some of the image will end up outside the box or on the floor, then I recommend not using keystone correction in the projector. It’s flaky and reduces image quality.

Aim the projector such that the image covers the inside of the box, reset keystone correction on the projector to zero across the board, and let the CalibrateProjector utility take care of the rest. It does keystone correction internally, with no impact on image quality.

The next major SARndbox update will have an option to black out non-rectangular screen regions to limit the projection image to the inside of the sandbox.

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