I was wondering how you put decals on terrain surfaces. Is it a textured quad put just above that has transparency?
At least that's what i use to do.
Is there a way to get it closer to the terrain and still render? I can get it within 4. I tried setSortOffset, but didn't get any change. This wouldn't be for z, but y. It's something that needs to move around. The terrain is just flat for now.
If you are coming close, you might run into z-fighting trouble. There's no real way around this.
You sort of intimated that you do decals in a different way. Would that work if the decal had to move around? I was trying to do a turn marker but it looks a little like a hula hoop. I could rescale everything, but I'd probably mess it up worse than I have already.
When using the hardware renderer, projective textures might be an option. But to be honest, i would simply go with a textured quad on top of the ground. Should be possible to make this look pretty good.
OK, I'll give it some more thought, then.