Material ID won't Apply

[jacksivyer]

Hello,

I want to use the same material but give have certain objects on a different ID layer for selection. I therefore decided to duplicate the material and assign it to the object and apply a different colour ad number ID. However when rendering, the mask appears the same colour. I thought that i was due to the duplication but I made a new material and applied it to the geometry but seemingly cannot get the material ID to work correctly.


in the image the background building is a different material with different ID (verified by 'selecting by material') but clearly the ID is showing incorrectly.

Any advice would be appreciated.

Thanks

[DCHA34]

Hi, what I do in case I duplicate a material, I delete the "Material ID" attribute of the duplicated material and recreate one.

[jacksivyer]

DCHA34 Hi thanks for your reply - I have tried that and even new materials do now work with material ID function now.. Very strange.

[jacksivyer]

Update:

I had neglected the fact that I was using the master material override and deflecting it for certain materials therefore new ones were being overridden!

Oops!

[natalia.gruzdova]

Hello jacksivyer, we are glad to hear that everything is working fine now and thanks DCHA34 for helping out!

Please do not hesitate to post on forum or open a ticket to our support team should you need any assistance.