Deep Render File Sizes - Merge Fragment threshold not making any difference

[Nexus Productions]

Hi,

We are rendering deep passes for our compers to integrate characters into volumetrics. I have been asked to reduce the size of the deep volumetrics frames rendered because they are 1.4 gig each.

We are using the VrayOptionRE render element to change the deep merge Zdepth threshold to reduce the number of depth samples saved in the frames (therefore making them smaller as the manual says to do) but it doesn’t seem to have an effect on the file size at all.

We've tried with FumeFX and VrayEnvironmentFog.
We've switched to By Z-depth in the deep merge fragment pulldown menu.
The deep does work in comp, it’s just the file sizes that are unmanageable. Any tips to reduce deep file sizes would be helpful. Thanks in advance.

[Nexus Productions]

It looks like deep merge zdepth threshold is not actually doing anything. After setting merge fragment by z-depth, We've set this to 0, to 1 and to a million, which is the largest number known to science. The resultant file sizes are identical.

We are using vray 3.20.03, so not the most up to date admittedly. Any thoughts or clarification if this works or not?

Many thanks

[tashko.zashev]

Hi,

Let me check this out and get back to you later.

[Nexus Productions]

Thank you Tashko, Please let me know if I can supply you any examples if needed.

[tashko.zashev]

We checked and Deep merge currently doesn't work for volumetric data. What you can do to make the file size smaller is to increase the ENV. fog Step size parameter. Let me know if this helps you. Otherwise we could add a feature request in our system.

[Nexus Productions]

Hi Tashko,

Thanks for clarifying. Please could you log this as a request. It makes deep rendering with Fur and Volumetrics virtually unusable as it stands.

[tashko.zashev]

Hi Tashko,

Thanks for clarifying. Please could you log this as a request. It makes deep rendering with Fur and Volumetrics virtually unusable as it stands.

OK, thank you. We will notify you when we have any news.