Expanding variables in image names

[ndeboar]

Hey,

We want to be able to swap easily between half/full res versions of our textures. The easists way I think would be to use a variable, eg:

\textures\texture_$SIZE.exr

And then we can swap size for "full" or "half".

But i cant get this working. I know vray does this for $U and $V for tiles, is there a way to add new variables?

Cheers!

Nick D

[ndeboar]

Dont worry, worked it out. It only works on directories, eg
putenv "TEST" "FULL"
\$TEST\texture.exr
will eval to
\FULL\texture.exr

[ndeboar]

Actually, no, doesnt work. Works fine in mental ray, but not in vray. Does vray support variables like this?

[pechart]

We just talked exactly about that. And since we really liked the version tag from Maya/Mray we would love to get something like this back in.

[t.petrov]

In fact it should work, but the format is a bit different.
The correct format is ${my_env_var} instead of $my_env_var.
You need relatively new build for this to work.

Check you change log files for lines like this one:
"Ability to specify environment variables in bitmap file names and other assets with ${var}"
to verify that the build you're using has this feature.

/Teodor

[ndeboar]

Thanks Teodor, ill check it out