Texture-space shadows

Hey,

Just wanted to share a technique with you all on how to make transparent texture-space shadows easily applicable to sprites.
Steps:

1. Use the provided shader (based on Sprites-Default). It samples the texture twice (once normally, once with an offset) and blends the two colours in the fragment shader.
2. If using a tight mesh, specify a large enough Extrude property to have enough texture space for the effect.
3. Note: this will not work with packed sprites because the shader can sample outside of the packed sprite area.

Here's a familiar character (FullRect mode) dropping a red shadow: