Fake volume light attempt

[Shirik]

Sup people. So i try to recreate that model in this Video

Autor says

It's a model with lots of parallel planes (but could also be several brushes) textured with a very very transparent material, with $nocull. Basically an env_projectedtexture projects shadows onto the parallel planes of material, creating a volumetric depth effect.

So i make a model like this -

(It's made of primitive/polygon mesh/grid)
and simple transparent texture with that vmt

Code: Select all

"LightmappedGeneric"
{
   "$basetexture" "models/volume"
   
   "$nocull" 1

   
}


And afterall the model looks comletely invisible. Even if i changing vmt file there is no effetct - its still invisible.
What have I missed?

[Kosire]

You are using lightmappedgeneric on a model, try Vertexlitgeneric.

[Shirik]

Oh silly me, you right!


Damn its working but soooo laggy, im so disapointed...

[Shirik]

i wonder how to make something like this without so much frame lose...

[Gary]

I got this to work before, but to get it looking good means giving up many frames.

Also, you made sure your model is one sided right?

[dark0r]

I'm going to try to implement this shader in the Source SDK, that'll be a hell of a lot cheaper than thousands of parallel translucent planes. I'm sure the fillrate will be rocketing with that, hence your low FPS.

Either way I'll add it to my "to add in the Source Engine" list

[Shirik]

sided right?

yep