Ok, i can use texture projection, or i can create a dedicated polygon in one mesh and assign a specific material to it.

And more i can create one plane and use transparent image on regular “or not” surface to simulate decals but it is not the right way.

Or i can paint directly on a texture or shader program to do that…

If i using DirectX i have more than one texture pass but i don’t know if it is possible with Away.

We have some chance to use decals, with simplicity in the future ? ...
Please

I think this is a very simple but usefull functionality…
Thanks

I see now: getTextureForStage3D