OTOY Forums

Hi,
I'm not very familiar with AOVs. And right now I look for something basic.
I use Custom AOVs to create masks.
I would like to know if I can ( and then how ) create a mask for a specified material :
I have a tree ( one mesh ) with multimaterial : trunc, leaves 1, leaves 2 , flowers
I can't use custom AOV to make a mask for the leaves as it is the same mesh.
I would like to render a mask for all the leaves.
Can anybody tell me ? Thanks.

Hi HHbomb,
I'm not sure I fully understand the issue. Are you trying to bake textures?
viewtopic.php?f=98&t=70328&p=355309&hilit=+bake#p355238
Regards
Paride

Hi Paride !

I just want to render a mask for the leaves.

Hi HHbomb,
I hope this is what you needed.
Regards
Paride

Hi Paride !
Thank you very much for your patience !
My brain stopped working I think...

Hi HHbomb,
Don't worry, it can happen to anyone! The AOV tool is incredibly powerful but not quite intuitive at first. However, at Otoy, they are working on implementing the updated Octane manual for the latest versions, so it can be helpful in illustrating all the new features not present in the old manual.
Regards
Paride

Hi, Paride.
It would be cool that we can have utilities to apply Custom AOV number to selected object materials, select objects by Custom AOV number, etc.
That could be very handy because it is teddious as it is when we have lot of materials. I did a tool for objects but I don't know how to do with multimaterials... )
Thanks

Hello Paride,

Maybe i've certainly missundertood something but when i do the same method as in the video, everything works well in the Octane render viewport.
But when i want to render this passes as a Render Elements for render animation, i use "Export Passes Selection to Render Elements" button, nothing happens !
I haven't any passes in the render Elements and when try to add AOV output manually the output stay black.

When i use the legacy AOV output it works but it's tedious.

What is the best practice for this and what I missed ?

Thanks

Chris

mizterh wrote:Hello Paride,

Maybe i've certainly missundertood something but when i do the same method as in the video, everything works well in the Octane render viewport.
But when i want to render this passes as a Render Elements for render animation, i use "Export Passes Selection to Render Elements" button, nothing happens !
I haven't any passes in the render Elements and when try to add AOV output manually the output stay black.

When i use the legacy AOV output it works but it's tedious.

What is the best practice for this and what I missed ?

Thanks

Chris

Hi mizterh,
This has been fixed in the latest releases (15.06 / 14.12). "Export Passes Selection to Render Elements" should work with AOVs now.
(I forgot to add it in the release posts. I just updated posts of 15.06 / 14.12)

When adding AOV output in Render elements manually, it should work too.. you just need to check / change the 'Parameters' to have the correct AOV number / AOV map name

A black output could happen if the AOV output or one of the sub aov is disabled. but you should see the same thing in the Octane viewport..
Try with 15.06 / 14.12 to see if you still have those issues.

Thanks