Reputation: 823
If a quad's coordinates are defined as:
(-1,-1,0) (-1,1,0)
( 1,-1,0) ( 1,1,0)
and use:
GLU.gluPerspective(gl, 45.0f, aspectRatio, 0.1f, 100.0f);
GLU.gluLookAt(gl, 0, 0, 1, 0, 0, 0, 0, 1, 0);
what scale values or glLookAt
values or whatever values would be needed to make the square appear to precisely cover a rectangular viewing area (no more, no less)? Thanks!!
Upvotes: 0
Views: 493
Reputation: 35943
Does it have to be perspective projection? It would be a lot easier to drop gluPerspective and gluLookAt and just use an orthographic matrix:
I'd replace both lines with just
glOrtho(-1,1,-1,1,-1,1);
Upvotes: 1