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draw circle

For Beginners

Started by phil67rpg April 03, 2006 01:23 AM

2 comments, last by Binomine 18 years ago

phil67rpg

458

Author

April 03, 2006 01:23 AM

I need to draw a very simple circle using openGL

Zakwayda

2,389

April 03, 2006 01:30 AM

Given the minimal info you've supplied, the simplest answer is probably to use immediate mode and GL_LINE_LOOP, along with the C++ cos() and sin() functions. If you need more info than that, you'll probably have to be more specific with your question.

Drew_Benton

1,865

April 03, 2006 01:36 AM

Take a look at this thread for a lot of different ways.

Binomine

611

April 03, 2006 01:49 AM

Since it's not mentioned in either of the threads listed, gluDisk() will draw a circle.

GluDisk() Documentation

void gluDisk( GLUquadric* quad
, GLdouble inner
, GLdouble outer
, GLint slices
, GLint loops
);

Just make your inner value only slightly smaller than your outer value.