Post by thatdarnowl on Dec 24, 2023 11:13:35 GMT
Decals
Question Submitted By: lazarus
What exactly is the advantage of assigning a surface the "Decal" property? As far as I can tell, it doesn't give the brush any sort of "priority in terms of visibility (i.e. you still have to carve a spot for your poster/detail/whatever out of the wall). Am I missing something here?
Answer Category: Mapping / Embrace
Yep, you don't have to "carve" anything for a decal brush. According to the Embrace docs, setting a surface as a decal means that brush "will be left out of the BSP/CSG process which will cause it not to cut up the geometry around it, it also stops the brush from blocking light or blocking the camera" In other words, When adding a decal brush it is not necessary to have the the decal brush outside of the brush being decaled it can be level with the surface you are putting the decal on. In other words, a decal brush can be inside the brush it is texturing, level with the displayed surface. It will not add to the BSP process, but the texture will display over the texture behind it.
So, decals have many advantages, the biggest one being that it is the best way to display certain textures (e.g., the graffitti) without adding extra brushes to the bsp process and still properly displaying their transparency.
Hope that answers your question
-- Bug2U
Question Submitted By: lazarus
What exactly is the advantage of assigning a surface the "Decal" property? As far as I can tell, it doesn't give the brush any sort of "priority in terms of visibility (i.e. you still have to carve a spot for your poster/detail/whatever out of the wall). Am I missing something here?
Answer Category: Mapping / Embrace
Yep, you don't have to "carve" anything for a decal brush. According to the Embrace docs, setting a surface as a decal means that brush "will be left out of the BSP/CSG process which will cause it not to cut up the geometry around it, it also stops the brush from blocking light or blocking the camera" In other words, When adding a decal brush it is not necessary to have the the decal brush outside of the brush being decaled it can be level with the surface you are putting the decal on. In other words, a decal brush can be inside the brush it is texturing, level with the displayed surface. It will not add to the BSP process, but the texture will display over the texture behind it.
So, decals have many advantages, the biggest one being that it is the best way to display certain textures (e.g., the graffitti) without adding extra brushes to the bsp process and still properly displaying their transparency.
Hope that answers your question
-- Bug2U
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