I'm now creating for the first time an Augmented Reality application. I'm using ARToolkit libraries to obtain the transformation matrix.
In an example this matrix is transformed in a GLformat (3x4 to 1x16 cause the last row is always composed by three zeros and a last one) and the loaded with the function glLoadMatrix in GL_MODELVIEW. Everithing work well..
Now I have the problem that the object i want to see in my AR application is too far from the origin of coordinate system, the far clipping plane don't let it see..
I read in the red book that glFrustum can help me, so I write this code, but I don't see anything at all!!
In my opinion mi mistake is the bad use of GL_PROJECTION adn GL_MODELVIEW..
Here I post my code.. maybe someone of you know the answer to my question..
Code :glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustum (-1, 1, -1, 1, 1.5, 20000.0); glMatrixMode (GL_MODELVIEW); glLoadMatrixd( gl_para ); glutSolidCube(40);
I tried also this
Code :glMatrixMode(GL_PROJECTION); glLoadMatrixd( gl_para ); glFrustum (-1, 1, -1, 1, 1.5, 20000.0); glMatrixMode (GL_MODELVIEW); glutSolidCube(40);