Note: the converter will only work if you have both Corona and the other renderer installed on the machine where you are using it. It is fine to use the trial or even expired trial license of the other renderer.
For example - if you are converting V-Ray materials to Corona, you need to have both Corona and V-Ray installed on your computer.
The below solutions apply to the cases where:
- The converter script is not working
- The max-script window appears and shows an error message
- After running the converter script (selecting it from the quad menu, or drag-and-dropping into the viewport) the script window flashes for one second, and then disappears
Possible solutions
Please try one step at a time, check if the issue persists, and proceed to the next one if it does:
1) Set Maxscript initial heap allocation to 256 MB in 3ds Max settings as instructed in the attached screenshots and then restart 3ds Max:
If the problem still persists:
2) Try manually editing the Corona Converter.ini file in:
C: \Users\***Username***\AppData\Local\Autodesk\3dsMax\20** - 64bit\ENU\en-US\ plugcfg\
Note: Make sure 3ds Max is closed before you make any edits to the Corona Converter.ini file.
If the problem still persists:
3) Manually remove the Corona Converter.ini file from:
C: \Users\***Username***\AppData\Local\Autodesk\3dsMax\20** - 64bit\ENU\en-US\ plugcfg\
If the problem still persists:
4) Reset 3ds Max user files
Warning! This step will reset all user settings of 3ds Max - if you wish to keep them, please backup the files before deleting them!
Here is how to do it: Reset 3ds Max user files