Frost 2 geometry instancing questions

Discussion and Support related to the Frost particle mesher
czurcher
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Joined: Thu Sep 16, 2010 1:06 am

Frost 2 geometry instancing questions

Postby czurcher » Wed Nov 30, 2016 11:48 pm

Hi,

I haven't gotten a chance to try out Frost 2 yet...had a few quick questions...

Does the vray proxy support include timeoffset channel functionality on a per particle basis?
Can frost distribute krakatoa PRT objects as geometry instances (again ideally with timeoffset control)?
Any recent word on non-uniform scaling of geometry instances?


cheers,
CZ

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Bobo
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Location: Vancouver, Canada
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Re: Frost 2 geometry instancing questions

Postby Bobo » Thu Dec 01, 2016 2:04 am

czurcher wrote:Does the vray proxy support include timeoffset channel functionality on a per particle basis?

Yes, but each time sample is considered a unique source. So if you have 100 frames of mesh animation and each one is used at the current time, it is equivalent to picking 100 mesh sources on the list. Of course, then each of these can appear thousands of times with barely any memory overhead.
Practically every feature of the regular shape instancing is supported in V-Ray Instancing mode.

czurcher wrote:Can frost distribute krakatoa PRT objects as geometry instances (again ideally with timeoffset control)?

No, because Krakatoa PRT objects are not real geometry. Frost is about polygons, and Krakatoa PRT Objects are about Krakatoa particles. The PRT Cloner modifier would be the place to implement instancing, but it would require significant changes to the way Krakatoa renders particles, and could mean making it actually slower. But it has been discussed before (in fact I think I discussed it a few weeks ago at a meeting).

czurcher wrote:Any recent word on non-uniform scaling of geometry instances?

Yes, I pushed for it for Frost 2, but it did not make it into the release. Our hope was to get it working for something like 2.1, but we will have to wait and see...
Borislav "Bobo" Petrov
Product Specialist
Thinkbox Software Inc.

czurcher
Posts: 17
Joined: Thu Sep 16, 2010 1:06 am

Re: Frost 2 geometry instancing questions

Postby czurcher » Fri Dec 02, 2016 1:15 am

Hi Bobo!

Thanks for getting back on my questions so quickly.

Yep, I figured time offsets on the proxies would require unique instances. Shouldn't be much trouble to keep them limited to a few groups.
Glad to hear it is well supported.

I did play around with PRT cloner a bit...I just prefer the frost workflow and thought it would be a good fit for distributing/controlling particle caches.

Definitely still a lot of interest in non-uniform scaling. It is basically the last thing needed to do motion-graphics geo completely in Frost (not a fan of TP groups as objects).


thanks!
CZ


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