MtoA different drivers for different outputs

[José Miguel Aragüés]

Hi there;

I would like to reduce the filesize of the EXR renders.

Right now I'm usually outputting the following AOVs:

• RGBA
• N
• P
• Depth
  
• Specular
• Cryptomatte Object
  

The filesize of a 1080p image with those AOVs is around 100mb per frame, which is huge.

So I thought to render in half float like I was doing with Mental Ray.

My surprise is that I can't do it if I want cryptomatte AOV, which, if I understand it well, it can't be less than 32bit float.

I had two options:

• To render without "Merge AOVs" enabled, which I don't like because it creates lots of subdirectories and it is a mess when rendering lots of renderlayers, cameras and shots
• To render everything in ONE half float driver (default EXR with "merge AOVs" enabled) and use another 32bit float for JUST cryptomatte AOVs

I like so much the second option. But I thought I could still render it in just ONE EXR. Unfortunately I don't. It creates one file per driver.

Anyone else has faced this situation?.

I'd like to know your workflow on this topic.

Thanks in advance.

[sid]

Yup, it's a problem that we have with our workflow, too.

We usually have an additional UTIL pass alongside our BTY, so we opt to render the UTIL pass at 32 bits, and keep the BTY at half float. 

Sid

--
You received this message because you are subscribed to the Google Groups "maya_he3d" group.
To unsubscribe from this group and stop receiving emails from it, send an email to maya_he3d+...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[joie]

Thank you for your input.

But how do you manage to output your files with tokens?.

I thought there would be a render token for output drivers, which would completely awesome. Right now I'm putting my filenames as "Anim\<Scene>\<RenderLayer>\ <RenderLayer> _####.exr".

But it would be cool if it could be something like this: "Anim\<Scene>\<RenderLayer>\<Driver>_####.exr"

Using those render tokens is great because I have all my renders divided in subdirectories with desired hierarchy

To unsubscribe from this group and stop receiving emails from it, send an email to maya_he3d+unsubscribe@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to a topic in the Google Groups "maya_he3d" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/maya_he3d/vT90rmx8Z8o/unsubscribe.
To unsubscribe from this group and all its topics, send an email to maya_he3d+unsubscribe@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--

Visita mi blog: 3djoie.blogspot.com

[sid]

Sadly, it's just a separate render layer.. nothing clever going on, here ;)

To unsubscribe from this group and stop receiving emails from it, send an email to maya_he3d+...@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to a topic in the Google Groups "maya_he3d" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/maya_he3d/vT90rmx8Z8o/unsubscribe.

To unsubscribe from this group and all its topics, send an email to maya_he3d+...@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--

Visita mi blog: 3djoie.blogspot.com

--

You received this message because you are subscribed to the Google Groups "maya_he3d" group.

To unsubscribe from this group and stop receiving emails from it, send an email to maya_he3d+...@googlegroups.com.

[joie]

In my case I reduced the problem to have two separate files per layer and the subfolders are a bit mess.

I've asked this question in the Arnold support forum just in case someone knows about that.

As far as I know, Arnold supports rendering different bit depths AOVs in the SAME multichannel EXR. So I guess its a matter of knowing if MtoA is cappable too or not.

To unsubscribe from this group and stop receiving emails from it, send an email to maya_he3d+unsubscribe@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to a topic in the Google Groups "maya_he3d" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/maya_he3d/vT90rmx8Z8o/unsubscribe.

To unsubscribe from this group and all its topics, send an email to maya_he3d+unsubscribe@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--

Visita mi blog: 3djoie.blogspot.com

--
You received this message because you are subscribed to the Google Groups "maya_he3d" group.

To unsubscribe from this group and stop receiving emails from it, send an email to maya_he3d+unsubscribe@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to a topic in the Google Groups "maya_he3d" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/maya_he3d/vT90rmx8Z8o/unsubscribe.

To unsubscribe from this group and all its topics, send an email to maya_he3d+unsubscribe@googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

[Steve Davy]

Ditto. We frequently work at 4K, so our file sizes frequently go way beyond 100Mb. We render beauty at 16-bit, and utilities at 32-bit.

---

From: maya...@googlegroups.com <maya...@googlegroups.com> on behalf of sid <sur...@gmail.com>
Sent: Tuesday, May 29, 2018 3:30 AM
To: maya...@googlegroups.com
Subject: Re: [maya_he3d] MtoA different drivers for different outputs