How to render lens effects on commandline/farm?

[Fredrik Averpil]

In the VFB you can set lens effects or e.g. a curve. How can these effects be enabled when rendering with mayabatch commandline on e.g. a render farm?

[vlado]

What file format are you rendering to?

Best regards,
Vlado

[Fredrik Averpil]

We render to EXR and in most cases Multichannel EXR.

[Fredrik Averpil]

Hey again Vlado, just checking in to see if you had any insights on this

We are still on V-Ray 3.6 but any news about this for V-Ray 4/Next would be interesting to know about too.

Cheers!

[yolov]

With EXR this is not yet possible. But we might get there for 4.1 (Next, Update 1, i.e. in the future). For the 8-bit formats - I need to test this with mayabatch if what's set for the VFB will get applied (I think it will, but I want to double-check). With standalone this should already be possible even with -display=0 (again - only for 8-bit image formats).

[Fredrik Averpil]

Aha, okay thanks.

[yolov]

It works with maya batch.
If your scene has settings saved for the lens effects in the VFB - they will be applied in mayabatch to png and jpg files.
By the looks of it, if you're rendering to exr with the same setup, you'll get a resultsEffect channel with the lens effects.
In addition, if you have set the lens effects mode to 'image and render element' or 'render element only' - you'll get a separate channel with the lens effects which you can add back with a simple add / plus operation in post.
This is all with V-Ray Next.