MAXScript: CoronaColorCorrect error when trying to remove map from "copiedMap"

Corona Corona for 3ds Max Help Required
1

I’m trying to remove a map from the “copiedMap” property in the “CoronaColorCorrect” map (version 9) via maxscript with this line:
sourceMap.copiedMap=undefined
but I get an error:
-- Runtime error: Invalid value for property: undefined
What could be the problem and how to solve it?
Thanks.

2

To help troubleshoot this issue, it would be helpful to have more information about your specific use case and material setup.

  1. Can you tell me more about what you are trying to achieve with this script?
  2. How are you using the CoronaColorCorrect map in your material setup?
  3. Are you using Corona 9 or a more recent version which is Corona 9 HF 1?
  4. What version of 3ds Max are you using?
3

I apologize for the delay in reply.

  1. I can’t tell anything special about the script. This is a simple script that should just clear the “copiedMap” property, but instead I get the error I wrote above. If you just click on the slot with the map and select in the Material/Map Browser, then it works and the slot is cleared and “copiedMap” property becomes “undefined”, but if you try to do it through maxscript, you get an error. As far as I understand in maxscripts (and I understand enough), then assigning the value “undefined” to a property intended to refer to a texture map should not cause an error.
  2. There is nothing supernatural in the map settings. This is a regular CoronaLegacy material and a regular CoronaColorCorrect map (Map 1), with another CoronaColorCorrect map (Map 2) from which the color correction settings are taken (see screenshot below).
  3. Corona 9 (hotfix 1)
  4. 3ds Max 2023.2.2 Update

    ccc_medit.jpg
    ccc_medit.jpg873×481 126 KB
4

Hmm… None of the Corona developers who read my post know the answer to my question. It is sad…

5

https://forum.corona-renderer.com/ Merry Christmas, Coronauts! (And office hours over the holiday season) - the office has been closed since the 19th, so not a time to expect fast replies :smiley: Even our hard working devs need some time off to recharge!

6

I am not a developer and I have little maxscript knowledge. I spent some time looking around various forums, and unfortunately I was not able to find a good answer so far.

As a workaround, maybe you can use this command to switch from “use settings from map” to “use these settings”:

rootScene[#SME][#View1][#Map__1____CoronaColorCorrect].SMENodeAttr.reference.controlsSource = 0

7

Hi,

We have managed to reproduce this here, it looks like a bug to me.

I’ll pass it on to the dev team and let you know when I’ve got some more info.

Cheers,

Rowan

(Internal ID=1029309927)

8

Thanks for the answer, Rowan. I’ll wait for this to be fixed.

9

Hi,

Good news, we have fixed this in the latest daily. You can try it out here: https://forum.corona-renderer.com/ Chaos Corona 10 for 3ds Max - Daily Builds Changelog #msg210105

Let me know if you still have some issues.

Cheers,

Rowan