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    Cryptomatte RS object id for vertex map

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    vertex map matte
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    • K
      KJC_creates last edited by Dr. Sassi

      I am looking to add a cryptomatte for every material in a scene, but some of my materials have a vertex map to reveal a second material. Can I add a material ID for the material being revealed with the vertext map in the node editor?

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      • Dr. Sassi
        Dr. Sassi last edited by

        Hi KJC-creates,

        Not to my knowledge. I will check with Redshift directly. If there is anything, I will update the thread.

        Cheers

        Dr. Sassi Sassmannshausen Ph.D.
        Senior Trainer, Maxon Master Trainer
        Cinema 4D mentor since 2004, Member of VES, DCS.

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        • K
          KJC_creates last edited by

          Hmm. Well I am wondering if there is another way to matte out the vertex material then. If not in a cryptomatte AOV, then what about some other object ID (or similar) that I can apply to the material that is revealed?

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          • Dr. Sassi
            Dr. Sassi last edited by Dr. Sassi

            Hi KJC,

            I have asked, and there is currently no way with Cryptomatte.

            If all Vertex maps have the same name (yes, that is a significant limitation, but they can be copied and named all the same for this purpose), then create an overwrite Material with it.

            Have a look here:

            CV4_2023_drs_23_REsm_01.c4d

            Is that ideal? Perhaps not, but that is all I have at the moment.

            All the best

            Dr. Sassi Sassmannshausen Ph.D.
            Senior Trainer, Maxon Master Trainer
            Cinema 4D mentor since 2004, Member of VES, DCS.

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            • K
              KJC_creates last edited by

              What about NOT using the cryptomatte? But some other type of matte.
              Maybe another AOV where I can ID the vertex map information?

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              • Dr. Sassi
                Dr. Sassi last edited by

                Hi, KJC_Creates; the idea with the material overwrite to create mattes, using only Emission as output, which should be fast (GI disabled).

                I'm unaware of an option other than creating a specific setup allowing mixed materials on a single object.

                Let me ask differently, what is the target? Could a position pass perhaps help?

                All the best

                Dr. Sassi Sassmannshausen Ph.D.
                Senior Trainer, Maxon Master Trainer
                Cinema 4D mentor since 2004, Member of VES, DCS.

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