Thick Bezier Curves in OpenGL

Question

I am writing a program in java using the jogl opengl bindings. I need to create a bezier curve that varies in thickness along the curve. So far I\'ve only managed a thin bez

Answer 1

Sample the curve and for each sample point compute two points, one on each side of the curve, along the normal line at the sample point and at a distance equal to the desired width at the sample point. This creates a polygon, which you draw as filled.