Hi
I’m trying to draw the circle with gluDisk in 3d space,but it looks oval(it is streched in vertical
direction),but I need the circle and not oval disk,how to fix it?
My code is this:
GLUquadricObj* quadratic;
quadratic = gluNewQuadric();
gluQuadricNormals(quadratic, GLU_SMOOTH);
glPushMatrix();
glTranslatef(xc,yc,zc);
gluDisk(quadratic,0,radius,32,32);
glPopMatrix();
First: are you looking along a viewing direction perpendicular to the disk?
Second: make sure your projection matrix corresponds to your GLwindow size.
eg. if you set glortho(0,800,0,600,…) and you have a viewport of 400x600 instead of 800x600, then your disk will be stretched in the vertical direction. This also applies to perspective projections.
Greetz,
Nico
Thank you,it’s fix now.
(I added vote… )