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i create volumetric object and i add material with gradient opacity and uv channel
when i save the scene and open it the parameters of uv channel reseted
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i use two gradient procedural texture for the opacity of volumetric ; i disable one and enable the second; the result is black render and when i removed the disabled procedural the render was clean

if we apply material with opacity texture without set uv channel to the volumetric, the studio force closed

Hello Seghier,

can you post a scene to test ?

Thanks.

Hello Miguel ; this is the scene
https://www.dropbox.com/sm/create/Public/volumetric.rar
; when you open it changed the parameters of uv set ( rotation x;y and scale x )


when i clone the volumetric the new one don't have uv set

Hi Seghier,
when i try to open the dropbox link it says

Error (404)
We can't find the page you're looking for. Check out our Help Center and forums for help, or head back to home.

I created a dropbox account just in case but to no avail.
Help

EDIT

if we apply material with opacity texture without set uv channel to the volumetric, the studio force closed

There was a bug in the procedurals that, when you had a material with a texture and the procedural object (volumetric, particles, etc....) didn't have a uv channel, studio or maxwell crashed when rendering. It has been fixed just this morning. It will be published in the next update.
M.

oh sorry i check the link and the file removed ! i don't know why
if you have email i will send to you its very small scene
thanks for fixing the bug . and parameters of uv set of volumetric reseted when we close the studio and we clone it . the clone does't have uv channel
can you make volumetric have uv channel by default like other objects

this is new link
https://www.mediafire.com/?0jae64nyab64lx7
i convert the procedural gradient to image and tried again but studio crashed
other question
i use volumetric inside volumetric ; and apply rough glass to them( i will post render soon)
i see in the render like thin horizontal and vertical lines ( color effect )

Got the file, thanks!

I'm investigating why the parameters of the uv channel change after loading, and why cloning the procedural doesn't preserve uv channels.

Thanks a lot for the report.

In general, if there is a material with a texture (either image or procedural texture) applied to a procedural geometry (particles, volumetric,...), this resulted in a crash while rendering. This has been fixed now.

Cheerios.
M.

many thanks Miguel
you can try this scene ; i use two volumetric and get like lines in the final render
http://www.mediafire.com/download/33w0o ... metric.rar

when i move the pivot of volumetric ; in the viewport only the pivot moved but when render the volumetric moved