How to implement a Worms style destructible terrain in XNA?

Question

I want to prototype an idea for a game I have. The idea for this game is that the player will dig through the ground, creating tunnels and finding treasure.

I\'m looking

Answer 1

Here are two examples that build on each other of how to do this with pixel shaders in XNA 4. Both examples include sourecode.

http://www.syntaxwarriors.com/2012/xna-alpha-mapping-with-pixel-shaders/

http://www.syntaxwarriors.com/2012/xna-alpha-mapping-with-pixel-shader-and-rendertarget2d/

Doing this with pixel shaders is very fast as all the heavy lifting is done on the gpu.