Transparent model textures (kinda)

Modelling, Textures, Animating and other general engine asset topics.

Transparent model textures (kinda)

Postby andy4729 on Tue Feb 21, 2012 7:21 pm

So I made a bush model and created the branches with a LOAD of flat planes with a texture of a branch on them. The texture has an alpha channel obviously. However, I am getting a strange effect when you look closely at the model. Part of the branches are transparent and you can see the ones behind. It looks really odd.

Here's my vmt:

Code: Select all
"VertexLitGeneric"
{
   "$color"            "[1 1 1]"
   "$baseTexture"         "models/bush01a"
   "$selfIllum"         0
   "$translucent"         1
   "$alpha"            1
   "$nocull"            1
}


This image tries to show what I mean. The darker branch that the arrow points at is actually behind all the branches directly in front of the player and yet it is visible... This happens throughout the model.

Image
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Re: Transparent model textures (kinda)

Postby marnamai on Tue Feb 21, 2012 7:44 pm

You should use "$alphatest" instead of translucent

https://developer.valvesoftware.com/wiki/$translucent

Also compile your map with "-TextureShadows"

https://developer.valvesoftware.com/wiki/VRAD

Don't forget to add the material path to lights.rad

Code: Select all
forcetextureshadow props_example/prop.mdl
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Re: Transparent model textures (kinda)

Postby andy4729 on Wed Feb 22, 2012 5:12 pm

Ahh yeah, forgot about alphatest!

Thank you very much :).
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