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10.07.2008 at 11:03PM PDT, ID: 23796301
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Attachment Details

render unit sphere 2D, OpenGL

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5.7
Tags:

C++, OpenGL

Hey people, I need help rendering a unit sphere to a 2d img. by using the setpixel f'n. It is a 256 x 256.

This below only helps by covering all pixels and shading it white...

for (int x=0; x < 256; x++) {
            for (int y = 0; y < 256; y++) {
              int Px = ((x/128) - 1);
                   int Py = ((y/128) - 1);
              int Pz = sqrt(Px*Px);
                    if (sqrt(Px*Px + Py*Py) < 1)
                  img.setPixel(x, y, Pixel(1.0, 1.0, 1.0));
            
            }

      }

I also have to do lighting to shade this to make it look 3D..
Any help will be greatly appreciated! Thanks!
Answered By: jose_juan
Expert Since: 08/21/2008
Accepted Solutions: 50
Computer Expertise: Guru
jose_juan has been an Expert for 4 months, during which he has posted 203 comments and answered 50 questions. jose_juan is just one of 71 experts in the OpenGL Graphics & Game Programming Zone. 1 expert collaborated on this answer, which was graded a "B" by the asker.
 
 
 
 
20081119-EE-VQP-47 / EE_QW_2_20070628