I've been trying to make a decal shader out of an existing texture. The texture works exactly how a decal is supposed to, but even though I set "No Marks" and "No Damage" bullet marks still show up on it ( causing Z-Fighting ). I notice this is also happening on SOME of the Light shaders that are labeled "Decal".

BTW is multiplayer supposed to have coronas / flares ? I'm not seeing any...

you need Poly Offset for decals.

Yes I'm using Poly Offset ( It shows up fine in game until it is shot ). It seems like the No Marks flag is broken in multiplayer... or something, even though other shaders that use it don't seem to be marked. My shader file looks like this:

Code Sample

textures/kamchatka/warningstrip_decal { qer_editorimage textures/kamchatka/warningstrip surfaceparm nodamage surfaceparm nomarks polygonOffset q3map_material Concrete    {        map $lightmap    }    {        map textures/kamchatka/warningstrip        blendFunc GL_DST_COLOR GL_ZERO    } }

When I get in tomorrow, I will look into it. But send me a reminder in case. (I am not on SoF anymore)

Are you sure the bullet marks aren't showing up on the texture behind your decal, and that's what's causing the z-fighting?
I have noticed that some Raven levels will exhibit this effect with the lights, especially with explosion effects.

Ted: You're right, that is whats happening. But wouldn't that make decals sort of.. pointless? I mean the whole purpose of them is to keep from having to raise the patch up one unit over the brush behind them, right?

I agree with the Dr.  What's the point then? I notice z-fighting on almost all decals which is something I don't want.  The map I am working on will use some prominent decals in "high traffic" areas.  What I've tried is using "noimpact" in my shader def and then placed the image on a 1 unit brush. I am not using patch meshes with this method BTW. I place the 1 unit brush on the surface in question.  I then sqwash the decal brush into a very flat pyrimid with "nodraw" on all sides but the facing side.  The pyramid  shape acts like a clip brush so players don't get caught on the edges. Bullets go through the "nodraw" and show up on the other side same with the alpha portion of the decal.  The decal has no marks but it's better than z-fighting IMO.  The bump as the player brushes up against it is very minimal.  I checked this method with r_showtris and it did not produce any more cuts than a patch mesh decal.

I will post screenies later tonight explaining this method.  I'm sure I've done something terribly wrong so you more experienced guys have at me!  

Hmm I just thought of another workaround... It would be possible to put a shootable clip brush one unit in front of the decal, and that would absorb the weapon impact. Hmm.. wonder if I can make a walk throughable, shootable shader, that would be excellent...

The point is to allow you to not have to break up a ceiling into 30 smaller brushes just to add a few lights.
You simply paste a few simple patch meshes with a decal shaders...
Sure, it looks funny when you shoot it, but that's because bullet mark decals are the same way - they draw a tiny bit out from the surface, so that they don't z-fight with the wall itself.