Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => Topic started by: Aldoren on 2017-04-27, 16:37:50

Title: Preparing geometry
Post by: Aldoren on 2017-04-27, 16:37:50

Preparing geometry sometimes take 3 minutes to complete, sometimes it take 3 seconds even though nothing in the scene has changed. Why is this? How can i lower the amount of time that the render is locked to this prerender thingy?

Title: Re: Preparing geometry
Post by: Ludvik Koutny on 2017-04-27, 17:05:53

Do you by any chance have ForestPack in the scene and use 3ds Max 2016 without Service Pack 4?

Title: Re: Preparing geometry
Post by: Aldoren on 2017-04-27, 18:27:36

Forest pack in some scenes, but not in another. I am actually on Max 2017

Title: Re: Preparing geometry
Post by: Aldoren on 2017-04-28, 09:50:11

Is noone else having a problem with this? Its very frustrating not being able to make a "quick preview render" without having to wait for the "Preparing geometry" to grind for almost 3 minutes

Title: Re: Preparing geometry
Post by: Nejc Kilar on 2017-04-28, 12:22:22

Are you using displacement in your scenes?

Title: Re: Preparing geometry
Post by: mferster on 2017-04-28, 23:02:08

I've had this happen seemingly randomly in the past and solved the issue by merging my scene into a new file. Maybe give that a try?

Title: Re: Preparing geometry
Post by: Christa Noel on 2017-04-29, 08:04:29

if i'm not wrong, I remember there was a thread here that completing windows update could solve this issue.

Title: Re: Preparing geometry
Post by: Aldoren on 2017-05-12, 20:51:51

So, i've tried scenes at my office, i work on a i7 5960 there and it works just fine. Render starts in a few seconds.

At home, at my 2xXeon 2650, the phase takes about 2-3 minutes. Same scene... So i suppose it comes down to this station. I've done all the windows updates, updated drivers in general, nothing works.

Also, interactive mode starts up in a few seconds, so no problem there.

Any more suggestions?

Title: Re: Preparing geometry
Post by: Ondra on 2017-05-14, 13:57:12

you could capture a minidump during the parsing, I can then take a look at it (see my signature)

Title: Re: Preparing geometry
Post by: Aldoren on 2017-05-14, 19:52:57

Thank you Ondra. I've upploaded a .dmp at dropbox. :)

Title: Re: Preparing geometry
Post by: Ondra on 2017-05-14, 21:18:38

note to self: filename is
Daniel Åström - 3dsmax.zip

Title: Re: Preparing geometry
Post by: Aldoren on 2017-05-14, 21:38:50

Yeah, sorry, should have specified i suppose

Title: Re: Preparing geometry
Post by: Ondra on 2017-05-15, 10:38:39

no problem ;)

Title: Re: Preparing geometry
Post by: Aldoren on 2017-05-16, 12:55:51

Hi, just checking in, when could i expect a verdict? :) Can't really start up projects with Corona when this persists, so if you have any idea to what action i need to take, do tell :)

Title: Re: Preparing geometry
Post by: Ondra on 2017-05-19, 18:35:46

hi,
one weird thing is that AcIPC_2_x64 tries to read some file in 4 threads. It looks like some bridge to autocad. You could try if removing it solves the issue.
Other than that it looks like VFB refresh issue, which is scheduled to be fixed in hotfix. Can you try increasing VFB refresh interval, or zooming out, to see if it helps?

Title: Re: Preparing geometry
Post by: MikelBG on 2024-05-07, 16:13:13

Finally I got a solution for this "preparing geometry" delay. In my case it was a corona decal, that had objects excluded, instead of objects included, I hope this works for somebody.

Title: Re: Preparing geometry
Post by: TomG on 2024-05-07, 19:53:07

Any chance of a copy of that scene? Via ticket is fine for privacy, https://support.chaos.com/requests/new

Failing that, can we have a fairly detailed description of what was going on? Did the Decal overlap 10s or 100s of objects, and it was accidentally excluding the two it should apply to and so was being calculated for 10s or 100s of objects? And on reversing that, so including those two, it was only being applied to two? What happens with no include / exclude where it just applies to all objects it overlaps, is that fast or slow?

Thanks!
   Tom