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  • triplanar mapping with deforming object

    is there any way to use triplanar mapping with a deforming object (for example with a rest attrib created before the animation). For some reason I have the impression that I already did that, but maybe that was back in maya.

  • #2
    Add "object properties" to the object, you'll find the controls there.
    V-Ray For Houdini | V-Ray Hydra Delegate | VRayScene
    andrei.izrantcev@chaos.com
    Support Request

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    • #3
      As bdancer said, add V-Ray Object Properties from V-Ray shelf, in that menu which will appear in geo node parameters has a tab "Reference Mesh", just switch it's mode to "Rest Attributes".
      Georgy Chakarov | QA
      www.chaosgroup.com
      georgy.chakarov@chaosgroup.com

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      • #4
        I knew that I did this before. Thanks for the pointer.

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        • #5
          This doesnt seem to work with alembics. Is there an other way to do it?
          http://goodbyekansasstudios.com/

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          • #6
            You could unpack the alembic, but this can slow down exporting step of the rendering if the alembic contains heavy meshes.
            Georgy Chakarov | QA
            www.chaosgroup.com
            georgy.chakarov@chaosgroup.com

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            • #7
              we cant really do that in our pipeline without breaking it and also creating heavy vrscenes :/
              http://goodbyekansasstudios.com/

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              • #8
                Hey, LeoYfver ,

                we added the option to use another copy of the Alembic node time-shifted to Frame 1 specifically for you guys about half a year ago. I hope we haven't forgotten to inform you

                Set the Reference Mesh Mode to Object and point it to a Geometry node holding the same alembic SOP, with a Time Shift SOP set to frame 1.
                We could not find a way to make this work with rest attributes.

                Here's an example: https://drive.google.com/file/d/10AM...ew?usp=sharing

                edit: I've updated the file ~5 minutes after messaging here - I was naming things and had the wrong Geometry node under Reference Object. Messaging in case you've downloaded it meanwhile.
                Last edited by Gosho.Genchev; 07-05-2020, 04:25 AM.
                gosho.genchev@chaosgroup.com

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                • #9
                  Dont think i got info or i missed it but that is great actually! Ufortunately this is a deforming geo with changing pointorder so thats why had rest attribute on the object :/
                  http://goodbyekansasstudios.com/

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                  • #10
                    Gosho.Genchev maybe a mapping input could be exposed so that we could use vrayUserColor to pickup the rest and plug it in.
                    http://goodbyekansasstudios.com/

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                    • #11
                      Yes, that would be the ideal case. We'll see what we can do and I'll message back.

                      Best regards!
                      gosho.genchev@chaosgroup.com

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                      • #12
                        Has there been any movement on this?
                        The rest attribute seems to have no effect on any of the noise maps from Vray (bercon or default) when set to object/world space, is there a way to get this to work?

                        Thanks.

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                        • #13
                          Originally posted by chadstevens View Post
                          Has there been any movement on this?
                          The rest attribute seems to have no effect on any of the noise maps from Vray (bercon or default) when set to object/world space, is there a way to get this to work?

                          Thanks.
                          This all works, we use rest to drive every kind of thing.

                          Make sure to add the rest to the object properties and then use a "UV named" node to load the "rest" attribute instead of the default "uv" and plug that in to your noise.

                          Click image for larger version

Name:	rest.JPG
Views:	656
Size:	87.3 KB
ID:	1141690

                          Best,
                          David.
                          David Anastácio // Accenture Song - VFX
                          https://www.accenture.com/us-en/serv...visual-effects

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                          • #14
                            Originally posted by david.anastacio View Post

                            This all works, we use rest to drive every kind of thing.

                            Make sure to add the rest to the object properties and then use a "UV named" node to load the "rest" attribute instead of the default "uv" and plug that in to your noise.

                            Click image for larger version

Name:	rest.JPG
Views:	656
Size:	87.3 KB
ID:	1141690

                            Best,
                            David.
                            This is great, thanks so much. I tried to look in the documentation but couldn't find the correct setup.
                            Cheers.

                            Comment


                            • #15
                              Originally posted by chadstevens View Post

                              This is great, thanks so much. I tried to look in the documentation but couldn't find the correct setup.
                              Cheers.
                              Happy to help.

                              I went through the same journey some time ago too, had to inquire the devs about it to get it to work.

                              Best,
                              David.
                              David Anastácio // Accenture Song - VFX
                              https://www.accenture.com/us-en/serv...visual-effects

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