GLFlowers v0.03: Leaves and Stems

v0.03: Adding leaves to the stem, plus laying the groundwork for lighting.

v0.02: Big update to leaf geometry generation, with curvature along all three axes.

v0.01: Rough cut of the basic scene and model hierarchy.

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Notable files:

• Scene: sets up a WebGL context.
• DynamicModel: base class for a "dynamic" model which in this case means a model with procedurally generated geometry. The random generation is based on a given seed value, so can be persistent if that's what you want
• Petal: A sub-class of DynamicModel that generates a leaf-shaped mesh and colors it from red to green away from the spine.
• Curves Implements Bezier curves, both quadratic and cubic (two cubic curves are the basis for the shape of each leaf)
• rand Implements a linear congruental random number generator with the ability to set a given seed