Corona .glTF conversion

[Mrk.exe]

Hi Guys! 

I would need to export some 3D models - done in 3ds 23 and corona 9 - in .glTF file to be uploaded oh a web app.

Any suggestion on how to convert Coprna Physical MAterial to glTF material?

I really appreciate any help you can provide.

[arqrenderz]

I think you need 3dsmax physical material, not sure how to convert from corona ..

[GSystem]

For export to GLB, it is better to use glTF Material (since 3dsmax 2023). For converting Corona materials (legacy and physical) to glTF Material, I use V-RayMax Converter Pro: https://www.scriptspot.com/3ds-max/scripts/v-raymax-converter-pro

[James Vella]

FYI Ill be releasing a Corona to GLB script soon, just doing some last tweaks on it. Stay tuned ;)

It will only support Corona Physical and Vray material's (PBR workflow) so if you need Legacy than the script above might be your best bet.

[James Vella]

Its available now, you can give it a shot.

https://forum.corona-renderer.com/index.php?topic=43502.msg227679#msg227679

[GSystem]

FYI Ill be releasing a Corona to GLB script soon, just doing some last tweaks on it. Stay tuned ;)

It will only support Corona Physical and Vray material's (PBR workflow) so if you need Legacy than the script above might be your best bet.

Its available now, you can give it a shot.

https://forum.corona-renderer.com/index.php?topic=43502.msg227679#msg227679

Thanks for the link to your script. I tried it, but compared to V-RayMax Converter Pro, your script converts very simplistically and does not take into account complex texture maps (such as CoronaMix, CoronaColorCorrect, CoronaColor etc.). For example, if the diffuse slot of the material has a CoronaColor map with a different color, then the glTF material will have the diffuse color, but not the color from the CoronaColor map. It also does not take into account texture levels and multipliers if they are not equal to 1.0 and 100. I also did not like that your script does not convert transmission, coat and sheen properties. In addition, V-RayMax Converter Pro can convert not only physical material, but also CoronaMtl (CoronaLegacyMtl), not to mention other Corona materials. Overall, if I need to convert Corona materials to glTF with maximum accuracy, then my choice is definitely V-RayMax Converter Pro.
PS: This is not an advertisement, I just wrote my opinion and everyone chooses what is best and most convenient for them.

[James Vella]

Yes thats correct, this script is for those who currently use PBR textures and want to convert from Corona Physical to GLTF Material and export. This is not a paid script, its just an option and what I use in my workflow. Feel free to use what is best for your workflow since I wont be doing color correct conversions or legacy materials etc.

Good point about the transmission, sheen & clearcoat, thanks for the suggestion.