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I have a bitmap image (RGB, no alpha), like the image below (letter ‘R’):
Which is the best way, with OpenGL & VC++, to create the extrusion of the bitmap? Parameter is a 3f vector. Either solid extrusion or surface only extrusion is ok.
Any idea?
Like said so often: OpenGL is “merely” a drawing API, rasterizing triangles to the screen. It doesn’t deal with scenes. It doesn’t deal with geometry.
Extrusion of a bitmap requires two specific tasks, neither of which OpenGL can do for you: Vectorizing the outline. Extruding the outline. The hard part is vectorizing, extrusion of a planar, closed path is simple.