VRay 5.1 support for Tyflow in vrscenes

[Flopinio]

Hi!

I would like to know more about the limits of rendering vrscenes that include TyCache objects.

I read, in the Vray 5 update 1 new features list, that Chaos Cloud has now Support for tyFlow instances rendering

As far as I know Chaos Cloud requires a vrscene to render, so I assume that support extends to all vrscenes.

- If that support is only for particles that are all instances, should I expect that all other non-instance-able geometry in a tyCache will not render?

- When can we expect a full integraton of TyFlow in VRay for max with full support for TyCaches in all its flavours?

Many thanks

[hermit.crab]

Yes, TyCache is supported for Chaos Cloud rendering. Not sure what you mean by "non-instanceable geometry"? Do you mean the tyCache's "Meshes" rendering mode? Also, could you give an example of what exactly is not working on your end (a simple scene would suffice)?

[Margarita.Stoeva]

Hello Flopinio

With V-Ray 5 Update 1 we changed the way tyFlow is exported to vrscene. The instancing improvement allowed rendering much heavier scenes and in a more accurate way.
In order to use the instancing improvement you need to export your vrscene with V-Ray 5 Update 1 or newer version (respectively use the version to send your scene from 3ds max to Chaos Cloud).
We've developed and tested tyFlow export with scenes provided by clients and we can only confirm the features which were available there. Since the focus of the user request was related to instancing there may be cases we have not covered with the improvement.
We'll be happy to look into your scenes if there is a case which is not working properly in terms of export.
For the moment there are two known cache-related problems which were all recently reported in our bug tracking system:
* tySplineCache not being rendered in V-Ray Standalone (you can refer to it with VMAX-11092 when communicating with Chaos support)
* tyCache is rendered wrong in V-Ray Standalone when a modifier is applied on top (this relates to the above VMAX-11092 in a way, but has been reported separately for tyCache in VMAX-11027 and also VMAX-11256)

When can we expect a full integraton of TyFlow in VRay for max with full support for TyCaches in all its flavours?

Chaos development is responsible for Chaos Cloud, V-Ray Standalone and V-Ray GPU rendering.
The tyFlow integration in 3ds Max relies on development by Tyson Ibele and V-Ray as production renderer is only processing the data available for it from 3ds max. However, if there is a specific V-Ray feature which doesn't work with tyFlow but an alternative approach with 3ds max native features does work, we'd like to check on the problem and investigate what can be done on our side, because this may mean we miss to read something.

As hermit.crab suggested, send us your simplified scene and we'll look into the issues which can be fixed in our side.
Thank you for helping us improve!

Best regards,
Margarita

[Flopinio]

Thanks to both for your replies.

The two reported bugs that you mention Margarita are exactly the issues we have been experiencing. So we are glad to know they are known to you and you are -hopefully- on track to find a solution.

It might take me some time before I can prepare a file I can send to you but I am adding it to my TODO list.

Also, can you confirm that every file sent to render to Chaos Cloud is first converted into a .vrscene file?

Thanks again,
Jordi

[Margarita.Stoeva]

Thank you for your answer!
I'll bump the priority on the tyCache issues for you.

Yes, every 3ds max scene is exported to vrscene for Cloud rendering.
The vrscene file itself still references files that are used as scene assets (bitmaps, caches, etc) and they are all sent together to Chaos Cloud for rendering (without your 3ds max scene file).

[Flopinio]

That makes sense.

I have 2 last question in relation to this:

- Are then the TyCache files then being also copied over and referenced in the .vrscene file the same way to let's say a VrayProxy?

- In our tests the vrscene exporter shipped with VRay 5.1 does not reference in TyCache files. Does Chaos Cloud use a different, more up-to-date .vrscene exporter? and if that is the case, could it be made available to all VRay users?

Thank your for pushing up the priority on TyCache, greatly appreciated.

Thanks,
Jordi

[Margarita.Stoeva]

tyCache files are not referenced in the vrscene file. (I mentioned "caches" earlier as example to vdb, lightmaps, alembic caches, etc - I'm sorry for the confusion it may have caused.)
Instead of listing the .tyc files, their actual data is read during export and translated to vrscene content which renders in V-Ray Standalone and Chaos Cloud directly without the need to install tyFlow on the rendering machines.