How do I set a texture to 1x1 tiled tilemap?

Hi! Could you help me?

I'm making a game where tilemap collides with some projectiles and destroys itself.

For reason of detailing, the tilemap uses a 1x1 tile to generate the terrain.

This gives me a problem: I can't use a texture on the terrain (it has a solid single color).

So I tryed to create a tiled background to use as a mask. The ideia is: the tiled background sets its shape to current tilemap, every single tick.

I had no success. Is this possible? Is there any better solution?

Thanks! :D

Blending with a mask is the right idea. See this example, where Building sprite is used as a texture for tilemap:

construct.net/en/forum/construct-2/how-do-i-18/simple-scorched-earth-worms-ga-129595