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wireframe modeling 3d image rotation

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Hi, I'm working on an embedded project. We are using wireframe modeling to represent 3d images. My requirement is that when that image(consider 12 lines cube) is rotated the lines on the back side should not be visble. Few lines should only be partially visible. But I don't know hot to know which lines should be visible and which should not be visible. I'm not using any graphics library. Want to write my own algorithm. Please do help. Thanks, Sandy

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Your question is a bit of a huge one, you sort of have asked "How can I make OpenGl?". Regardless, check out searches on the net like, "line occlusion" and maybe "culling algorithms"? Are you sure that OpenGl ES is not okay? It is created specifically for embedded environments and would save you a hell of a lot of time.

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