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Hi folks, I want to project a 3D solid model (say an animal) to the 2D plane to obtain the 2D image WITH EDGES. I can do the 3D to 2D projection to find out the shapes (which is very simple, assume the background is mono-color, you just threshold). But my problem is that different parts of the 3D model may overlap and create edges when I project the model to 2D plane, and I want to find out these internal edges. Would anybody help me? I'm using OpenGL. Thanks in advance! Sandy |
Please help: how to project 3D model to 2D image
Started by ●August 27, 2004
Reply by ●April 12, 20062006-04-12
Hi Sandy ,
I guess you need to use Volume rendering for this problem. This basically
projects the 3D image to a 2D Plane .The most commonly used algorithm is
raycasting where the rays are passed into a 3D Image and at each intersection
the opacity and color is computed and at the end of it the final value got used
to draw a 2D Image.
