show different colors on the 2 sides of a polygon

OpenGL OpenGL: Basic Coding
1

Hi,

Is it possible to show different colors on the 2 sides of a polygon, say one side red and the other blue? (I also wish the polygon to be translucent) Thanks for your help.

Tony

2

Draw it two times with backface culling enabled, once to cull front faces and once to cull back faces.

3

Or disable culling and use two-sided lighting with different materials for front and back faces.