Probably because you use a material that isn't a decal. Never use non-decal materials as decals. On some computers, they will flicker and the scale will be 1:1. You can create a new material for the texture you want to use as a decal. Open Notepad, paste the text below, save it as <any name you want>.vmt. You need to restart Hammer before you can use it. I recommend you to use info_overlays instead of decals, because decals are not loaded from saved games. Overlays are more flexibel than decals. They can be rotated, scaled and stretched.

"LightmappedGeneric" 
{ 
    "$basetexture" "THE TEXTURE YOU WANT TO BE A DECAL" 
    "$decal" "1" 
    "$decalscale" "0.25" 
}

Ald?z wrote:
Probably because you use a material that isn't a decal.

Solution:

Ald?z wrote:
I recommend you to use info_overlays instead of decals

Reason:

Ald?z wrote:
Overlays are more flexibel than decals. They can be rotated, scaled and stretched.

Well put Ald?z!

i made my map done ^^ so its 3 lvls and a boss battle =) but the boss battle is very hard to figure out how to win it

pestchamber wrote:
i made my map done ^^ so its 3 lvls and a boss battle =) but the boss battle is very hard to figure out how to win it

DL link, or it didn't happen.

youme wrote:
Well put Ald?z!

Thanks! I just answer the way I'd like to be answered.

I deleted the last line in the vmt above. I copied the text from another post I made and didn't pay attention to what it said. The $selfillum parameter should only be used on glowing textures.

rellikpd wrote:
DL link, or it didn't happen.

what didnt happend? ill post it soon.. as WIP cause i havent tested it that much yet but im not really gonna edit it as its a little project so ill just dont make the same stupid glitches in the future as i did in this one... in the new ones ill make i can now use overlays 2

MrTwoVideoCards wrote:
Also note that you cannot place Overlays in faces with a Lightmap of 4 or lower, just In case you do this. This effects the FaceCount for the Overlay itself.

Oh wow I did not know that. Is there any reason why it gives errors or is it just "one of those thing"?