How to draw a patch with different front-face and back-face colors?

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Dmitry
Dmitry on 3 Dec 2013
Edited: Agustín Trujillo-Pino on 4 Sep 2015
Consider drawing a patch, say
patch([0 1 1], [0 0 1], [1 2 3], 1).
I want the patch sides to be of different color: say, "red" when I look at its front-face and "blue" when I look at its back side. Is it possible?
Or maybe it's possible to switch on the "back-face culling" in MATLAB?
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Agustín Trujillo-Pino
Agustín Trujillo-Pino on 4 Sep 2015
Edited: Agustín Trujillo-Pino on 4 Sep 2015
You need to create your own callback every time the user moves the mouse to rotate, and in that callback you compute what faces are front-facing or back-facing to the camera, and set the corresponding color for each one.

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