Immediate-Mode Rendering

Question

Hi, i wrote a normal rendering methode but i want to change it to Immediate-Mode Rendering which is in Java3D
can anyone help me and tell me how to do that?
here is my current rendering function that i want to change:
     public void render( Scene scene )
          Viewport eye = new Viewport( scene.viewpoint, 0, 0, width, height );
          double daa = 1.0 /antialias;
          for (int y=0; y < height; y++)
               for (int x=0; x < width; x++)
                    DColor color = new DColor( 0.0, 0.0, 0.0, daa*daa );
                    for (int sy=0; sy < antialias; sy++)
                         for (int sx=0; sx < antialias; sx++)
                              scene.trace( eye.ray( x + sx*daa, y + sy*daa ),
                                             color, 0 );
                    putPixel( x, y, color.getRGB() );
          flush();
     }

Answer 1

GLuint vboid;
glGenBuffers(1, &vboid);
glBindBuffer(GL_ARRAY_BUFFER, vboid);
Your vboid is currently pointer, is it allocated? If it isn't your code makes no sense at all and it's miracle it doesn't crash on gen call.
Also, gdb will tell you more if you read the documentation
Last edited by Cloudef (2012-07-04 15:14:02)