Messages

1

[Max] I need help! / Re: EXR Output with Network Rendering

« on: 2025-04-16, 10:50:14 »

Hi,

I was pretty sure that no one will answer to this, so I will do. It's a 3ds Max design flaw when it comes to network rendering because the EXR settings are stored locally, they do not get part of the scene (same applies to other output formats btw.). The relevant file is 'fOpenEXR.cfg' in the plugcfg directory in this case.

My personal solution is to always use "Automatically Add/Remove Render Elements [...]" when setting up the output and having a script as (one of the) prerender scripts that sets AutoAddRenderelements to 'true' on every node when the render job starts. It would not help you if adding the elements manually (and defining different output formats (16/32bit accuracy) though, but you get the point. Also see

https://forum.corona-renderer.com/index.php?topic=25686.0

This and other issues can either be solved by Autodesk (well...unlikely) by storing the output file settings in the scene, or by Chaos if implementing their own output system for Corona. Currently it uses the output system of 3ds Max.


Good Luck

2

[Max] General Discussion / Re: ForestPack Masking

« on: 2025-04-16, 10:15:15 »

What is missing:
- a one-click solution to render the whole Forest as a single mask

It is a two-click-drag-click solution now, you just have to select all source objects in the list that's popping up. I'm personally perfectly fine with this. It would still be a nice addition if the ForstestObject itself could be selected (and respected in masks) just because it would be dynamically: if changing some forest source objects you would still get the entire distribution (without having to add new source objects to a mask array).

- a way to render the Forest source objects with different colors, without rendering all the other scene objects

Could be done easily if CMasking_ID would get an object array (like CMasking_Mask) with "exclude" as default setting imho, maybe useful generally.

OK well you learn something every day :)

Then (just a hint) also be aware of the object pick option in VFB as well: If clicking on some scatter element (with that ugly green you maybe want to adjust later), you actually pick the source object of the FP scatter. And: VFB picking supports pressing SHIFT to expand your selection. It's quick and easy to create a mask for specific source objects this way.


Good Luck

3

[Max] I need help! / Re: Problem with corona select map

« on: 2025-04-11, 10:56:19 »

Hi,

I already tried to repro it, but I can't.

Repro steps:

1. New scene with a teapot of your choice
2. Create Corona Sun with "shadowing from clouds" activated
3. Create Corona sky map with cloud amount=1
4. Create Corona sky map with cloud amount=0
5. Create Corona select map
6. Plug sky from (3) in slot 0 of the select map
7. Plug sky from (4) in slot 1 of the select map
8. Plug the select map into (any used) environment slot
9. Render and switch skies using the select map

-> when slot 1 is selected in the switch map (the sky using no clouds), you get cloud shadows from slot 0.

Good Luck

4

[Max] I need help! / Re: Problem with corona select map

« on: 2025-04-09, 14:21:34 »

hello everyone, i probably use corona select maps incorrectly..

You are only encountering bugs I guess. It's (almost) impossible to use them wrongly.

For my convenience and being able to easily change the Environment seems quick as a method

Generally yes. Exception is: you have cloud shadows activated in the sun. I reported that issue while testing V9 dailies, now in V13 dailies it's still there.


Good Luck

5

[Max] I need help! / Re: Chaos corona livense not found

« on: 2025-03-10, 13:32:57 »

If everyone could open their own individual ticket that would be helpful, thank you

Instead of wasting time with useless tickets we should prepare some class-action lawsuit, honestly.

6

[Max] Bug Reporting / Re: Forrest Pack and Lightmix/Select not working in Corona 12 update 1, as before

« on: 2024-12-18, 11:38:47 »

which brought the changes, so nothing intentional. But when hierarchy selection/inclusion will be fixed, it will be intentional, as it is reported as a bug/feature request (as an option).

So all fine, kind of accident while trying to push in as much features as possible. Good to read about having sort of hierarchy handling option in mind. I know quite a few people struggling with the current behavior as well as others using it happily as it works currently.

Edge mode with IR is known and afaik already fixed internally.

That's good news, thanks!


Good Luck

7

[Max] Bug Reporting / Re: Forrest Pack and Lightmix/Select not working in Corona 12 update 1, as before

« on: 2024-12-17, 16:07:38 »

There are infinitely many test scenarios, and that is why we highly encourage to try or test a few scenes/scenarios, as close as possible to production (with a backup of course), so such things are found and tackled.

No one would expect such fundamental changes when reading "Added support for ForestPack Ivy Generator". In fact, many would not even have the newest FPP installed, so they won't care. It's entirely ok to change things/try out something but it happened in major version 12 as an "update"? (for whatever reason this was chosen - first time in Corona history). In a major versions "update" I do not expect such changes at all.

Basically it's very cool that the feature got support, otherwise the yelling would have started later anyway. But it is definitely a very basic change. It does not only affect lightMix and masks, it also affects VFB raycast picking. Now it is not possible any more to quickly pick that nasty, wrong looking FPP custom object to fix it. Instead, you get the FPP object itself.

By the way, that discussion is there for a long time and as mentioned previously, users adopted the way Corona handled FPP and took opportunity from it because there has been no movement or commitment. So scenes use the "old" behavior, also v12 ones. Now that update in the same major versioning. I'm still not sure if it was an accident and some unknown side effect because of the last minute changes or a known implication. Basically there should be more time to test for users and developers anyway. Usually you are swamped with work and occasions to test are rather rare. But I'm repeating myself again.

In my honest opinion, this is not a harsh change, and even the desired behavior (selecting a single object and having all its instances inside other objects) is weird for me.

You can say the same about how hierarchies are handled. Isn't it weird that you get multiple objects in mask when including a single one? Yes it seems. But here the same: users adopted that behavior and link objects to another to have them semi automatically included in a mask. You would break again many scenes when changing this. As said: all ok in another major Corona version where users can expect fundamental changes - and if it gets announced.

I hope you get my point - I got yours. Meanwhile, as of FPP 9, edge mode in IR seems to be broken which is worse :)


Good Luck

8

[Max] Bug Reporting / Re: Forrest Pack and Lightmix/Select not working in Corona 12 update 1, as before

« on: 2024-12-13, 12:17:49 »

Word by word my point of view.


Good Luck

9

[Max] Bug Reporting / Re: Tonemapping Order/Behaviour

« on: 2024-12-11, 15:15:06 »

Corona has the worst saturation adjustment operator on this planet

I'm sick of repeating myself but you did that one for me, thanks :)


Good Luck

10

General CG Discussion / Re: 3dsMax material issue

« on: 2024-11-28, 15:08:38 »

Hi,

cannot confirm using Max 2024.2.1 and Corona V12 update 1 (using multiloaders).

as it would crash 3ds Max

Minidump?


Good Luck

11

[Max] I need help! / Re: Corona Multimap Script

« on: 2024-11-28, 09:37:25 »

Hi,

as said, you can plug maps into the slots (up to 100) using SME. But they do not appear in the parameter editor, only in SME view. All parameters above slot 25 can only be changed by script (example above). It is not possible to change that behavior (questionable anyway) by script.


Good Luck

12

[Max] I need help! / Re: Corona Multimap Script

« on: 2024-11-28, 08:46:52 »

Hi,

what do you mean by "adjust"? You can add a map to a slot in the material editor (up to 100), but you cannot change the parameters there. Maybe this helps:

Code: [Select]

-- get a reference to the map, assuming to find it in diffuse of the selected object and using a CoronaPhysicalMtl:
Multimap=$selection[1].Material.baseTexmap

-- show all properties:
show Multimap

-- Choose a slot:
indexToChange=14

-- list parameters of the slot:
format "Frequency: %\n" Multimap.frequency[indexToChange] as string
format "Texmap: %\n" (if Multimap.texmaps[indexToChange]==undefined then "-none-" else Multimap.texmaps[indexToChange].name)
format "Texmap on: %\n" Multimap.texmapsOn[indexToChange]
format "Color: %\n" Multimap.colors[indexToChange]
format "Texmap on: %\n" Multimap.texmapsOn[indexToChange]

--set frequency and color:
Multimap.frequency[indexToChange]=0.2
Multimap.colors[indexToChange]=color 128 64 64



Good Luck

13

[Max] I need help! / Re: Saving .exr files with denoised render elements?

« on: 2024-11-21, 09:04:55 »

Hi,

yes, CXR has a lot extra layers (and metadata), thus the size difference (actually the reason to have a "CXR" primary). As mentioned, the denoised pass should be in your EXR. It may be any issue with deadline though, your setup is correct imho. But if the denoised beauty is not in your locally rendered EXR, it could be a Corona bug as well. Just to make clear: you are using Corona v12, not v12.1 or v12 update1?

You could delete all objects from your scene and attach it so we can have a look at it/test it - or start a ticket if you like that more.


Good Luck

14

[Max] I need help! / Re: Saving .exr files with denoised render elements?

« on: 2024-11-18, 10:08:59 »

It works well except that I'm not getting any denoised passes in the file.

This is strange because you should get a denoised beauty only with this setup. The non denoised should be the one missing (which can be obtained by adding a CShading_Beauty element with denoise amount 0).

Please add at least Corona + 3ds Max version information and if you use single node or network/dr.


Good Luck

15

[Max] Daily Builds / Re: Chaos Corona 13 for 3ds Max - Daily Builds Discussion

« on: 2024-11-05, 10:45:58 »

Current daily-2024-11-04:

Thanks for reverting from that VFB history restriction nonsense and for the installer unpack option.

As for the "Update during animation" checkbox of VFB auto adjustments: I still cannot figure out a situation where this would be unwanted. What's the use case here?


Good Luck