It would be very useful for me to have built-in physics masking for bitmaps. By this I mean transparent pixels should not collide in the physics engine.

I understand there are tools to generate the physics shapes based on images like this, but for those of us that change sprites constantly, this is a terrible pain and a hindrance in our workflow.

Thank you for your time, and I hope you can eventually implement this to give a better experience for all Corona developers and expand your user base. I have been quite happy with your system so far and I expect to use it for many projects in the future.

This is an old thread, but I am bumping it because I now need this feature more than ever.