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Messages - Frood

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[Max] I need help! / Re: Corona 10 maxscript
« on: 2024-07-08, 09:31:23 »
... and if you don't like that getProperty and setProperty stuff (like me), you can to it as well this way:

Code: [Select]
-- returns undefined if no such operator in stack
fn setSimpleExposure exposurevalue enabled:true = (
pipeline = renderers.current.colorMap_pipeline
while pipeline != undefined do (
if classof pipeline == SimpleExposureOperatorPlugin then exit
pipeline = pipeline.colorMappingOperator_nextOperator
if pipeline != undefined then (
pipeline.colorMappingOperator_simpleExposure = exposurevalue
  pipeline.colorMappingOperator_enabled = enabled

-- example calls:
setSimpleExposure 6

setSimpleExposure 2 enabled:false

if (setSimpleExposure 0.12345 enabled:true)==undefined do (
format "No simple exposure operator in stack.\n"

Good Luck

[Max] Bug Reporting / Re: Corona 12 Crash
« on: 2024-07-04, 13:01:57 »

I also had a crash (still have the minidump) when using it for the first time. I think what I did was just deleting the SystemSettings config file(s) of Corona. So maybe try to delete (make backup if you like) all files in


Good Luck


Corona Toolbar -> "Open unified Corona Lister" -> "Proxies" -> "Toggle All" -> "Previz type" -> "Wire bounding box"?

Good Luck


This looks rather like activated "Sharpening & Blurring". Try to turn that off and do sharpening using the single images (if required anyway) externally before exporting them. Cannot check because your link is expired but I'm pretty sure.

Good Luck

[Max] I need help! / Re: Shadow Catcher
« on: 2024-06-25, 17:53:30 »
It is about just another years old issue, see for example

Good Luck

Just checked, it's broken. And it has been already broken in RC1. It is just about the standalone (Edit: and vantage) export function of the Corona interface. A correct call (with all needed parameters) would be for example

Code: [Select]
CoronaRenderer.CoronaFp.exportScene @"C:\Corona\myscene.cdo" 0

All you get since RC1 is

Code: [Select]
-- MAXScript Listener Eval Exception:
-- Unknown system exception
-- MAXScript callstack:
-- thread data: threadID:10096
-- ------------------------------------------------------
-- [stack level: 0]
-- In top-level

I think adding that vantage button broke it. Daily 0706 did it correctly.

Good Luck

I did a clean install everywhere and now it works!

More than glad to read that :)

Good Luck


But now I need everytime a job is finished on the Master PC, close the DR Server module and start it again to make it work.

Where exactly do you need to restart the dr server? On the dr slaves only? Or do you use an (unfortunate) setup where the master has a dr server running and is included as dr slave - and you have to restart it there? Can be found anything useful in the logs?

I tried to reproduce this, because I was quite frightened by your report (I'm using BB+DR regularly and would like to do so in the future). But everything seems to work fine here. Even when using the master as DR slave simultaneously (absolutely not recommended and evil of course).

This has been the test environment:

  • Loading V12 via multiloaders (not used the installer)
  • Manually replaced dr server by v12 dr server on slaves (because v11.2 is installed there)
  • Using dr server as windows service via nssm.exe
  • Having dr nodes configured as resolved names in "IP/Hostname" column of render setup -> system
  • Having "RestartMax = false" in DrConfig-1.5.txt on dr nodes
  • Tried "Search LAN during render" on and off
  • Versions were Max 2024, Corona V12 RC1, Backburner v2019.0.0.5

When loading the scene, it has properly configured dr settings (I dump them by default at loading time into Max log), and the master uses them accordingly. Tested jobs with single and multiple frames. If the master changes to the next job queued, dr slaves jump in as desired. I submitted the jobs to one node using backburner, while having three others configured as slaves. In case of "Search LAN" active, the slave list was empty and all slaves having dr server running were found.

Good Luck


depending on your needs you could consider using the accurate formula I think. Just the gamma value as exponent is a quick approximation afaik and you end up with a deviation of about 6 (using 0 to 255) at values around 130. See chart: blue is simple gamma, green graph is what you can find everywhere as formula to convert (the low value cutoffs seem to depend on color space but I think using 0-255 does not resolve enough anyway in that range and I have not used them here).

Good Luck

[Max] I need help! / Re: Scatter Update During Preview
« on: 2024-05-14, 16:57:37 »

the link on the page above was my source:

Does it not work for you?

Good Luck

[Max] I need help! / Re: Scatter Update During Preview
« on: 2024-05-14, 13:14:44 »

not convenient but you may try

Maybe it works for you.

Edit: I just remembered a script I used to create previews, it's still available and seems to work because it has a "timebudged" setting. I quicky tested it and scatter seems to update using it.

Good Luck

[Max] General Discussion / Re: Low CPU
« on: 2024-05-13, 10:09:49 »

you may have a look at this thread:

I bet your commit size (not in your screenshot) is way over 60GB. Either show the Memory part of Task manager or the details tab with the 3dsmax process with all relevant columns activated. And if you say, other, identical nodes do not page, do this for both :)

Good Luck

Is it the case?

You have to decide for yourself. I was not able to measure any significant speed gain in standard production scenes, and for me it makes no difference if a scene renders 4h20m32s or 4h19m11s. But the last time I checked CBitmap <-> Bitmap speed was quite a time ago.

Good Luck

If you have the scene it hand were this can be reproduced, please send it over and we will investigate it.

I checked the scene linked above by lupaz. Even properly relinking assets or disabling animation in the proxy objects does not change the behaviour.

Original scene Max, Corona 11.1
Tested with Max, Corona 11.2

However, the scene is loading twice as fast using CBitmaps :)

Good Luck

I did - no difference.

Good Luck

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