Sprites to show black until light hits them?

Okay, so here's what I'd like - For all my sprites to show as black silhouettes, until they interact with a light mask.

So I have a sprite representing the light, when that is over another sprite, the sprite shows it's colours normally. When it is not over the sprite, the sprite is a black silhouette.

It's a lightmask, basically.

I've been playing about with blending for a few hours now and I can't seem to find what I'm looking for. I thought I found it for a moment and then... lost it?

Wonder if anyone else has found anything like this?

I think I would do this just with animation frames - frame 0 the shadow version, frame 1 the coloured version, then do something like

overlapping light sprite then set frame to 1 else set frame to 0

edit - I can't check at the moment but I think that one of the FX that come with c2 can do this...(make black and white)

Could this work CAPX

Just set opacity to 100 for layer 2.

Small note, for some reason it doesn't work on node-webkit. At least for me.

a quick test using built in fx.

Do you want something like this

just wanna say thanks to Katala here, i'd gave up on this long ago, I'd never thought about having the backdrop on a layer *above* the lighting and using a blend mode. cheers

keepee, Your welcome Just a shame it doesn't work on Webkit.

Katala, it's working fine for me

keepee I get this.

Could it be from GPU blacklist? I have GeForce GTX 560 Ti TOP. Though I don't get any forced canvas2d rendering.

Edit: Works on Fullscreen quality set low.