1. A method of rendering a shape defined at least in part by a cubic curve, the method comprising: identifying Bezier control points for the cubic curve; creating a projection of the cubic curve into a texture space; for each of a plurality of pixels, determining which side of the curve the pixel lies on based on the projection of the pixel into the texture space; and producing an image of the shape by choosing, for each of the plurality of pixels, a color at least in part according to which side of the curve the pixel lies on.