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how to create 3d picture from 2d picture by Opengl on delphi

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i have a 2d picture on image control in form1 then, i would like to draw 3d picture on form2. i don''t know how to transform viewport from 2d picture on form1 to form2. In form2, i use opengl to plot 3d. viewport boundary not equal. boundary of 2d picture is image control bondary. how can i do? please help me. thanks you.

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Can you repost your question... it''s not written very clearly. I''ll try to guess what you were trying to say though:

The fact that you''re doing it in Delphi is irrelevant. The technique will still be the same.

Are you trying to take a 2D image, like a photo or a renderd image, and extrapolate the 3D data from it?
This is /very/ difficult. Almost impossible, basically.

What you need to do is download Mike Lischke''s OpenGL 1.2 headers. They have functions and demos for how to render to a form.

Apart from that... can you post again clearly saying what you''re trying to do?

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