How do I destroy only the parts of image

So supposedly I shoot a laser beam, and it only hits part of the terrain.

How do I only destroy the parts that were exposed to the laser, not the entire image

Cause I can only do destroy object on coliision

WIll somebody please help if they have done this already?

Check the lemmings example of Ize.

Alternatively, you can check this :

It also uses canvas but store all the pixels in an array for better performances (regarding my own "engine").

Still, it's a tricky and slow solution.

If you want more explanations about this, just do a forum research on "worms" and "per pixel".

Hi dci. Could you replace the original image with a new one that looks like a damaged version of the first one?