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Tapering for VRayFur

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  • Tapering for VRayFur

    You can simulate tapering of the fur strands for VRayFur if you map the opacity of the material along the strands, so that they are more transparent towards the tips:



    Best regards,
    Vlado
    I only act like I know everything, Rogers.

  • #2
    That's a great tip Vlado...

    Does this work with the refraction map with IOR 1.0 trick for opacity? or only if you use the opacity slot of the material?

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    • #3
      You can do that, of course, but in my test it was slower with refraction than with the opacity map.

      Best regards,
      Vlado
      I only act like I know everything, Rogers.

      Comment


      • #4
        nice!

        are there any plans to implement styling in vray fur btw?
        Jonas

        www.jonas-balzer.de
        www.shack.de

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        • #5
          Ah, yes, whatever happened to that Vlado? I can clearly remember you saying that this was going to be implemented in the 1.5 final.
          What happened?
          Signing out,
          Christian

          Comment


          • #6
            Originally posted by trixian
            Ah, yes, whatever happened to that Vlado? I can clearly remember you saying that this was going to be implemented in the 1.5 final.
            What happened?
            I still have shag installed, just for this one hope.
            Eric Boer
            Dev

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            • #7
              Well, it works, but it needs some more development time; I'll see if I can release something separately from V-Ray. It is essentially a vertex paint modifier, but designed to generate textures specifically for V-Ray fur.

              Best regards,
              Vlado
              I only act like I know everything, Rogers.

              Comment


              • #8
                That's a good tip, thanks!
                Would you consider adding a totally flat geometry type as well? Basically just a plane with as many height segments as specified in the knots setting. The plane could have normal UV coordinates, and would be useful for doing special things like feathers, or for mapped grass cards for distant objects. I guess the challenge to work out is the orientation of each fur object around the z axis?
                Torgeir Holm | www.netronfilm.com

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                • #9
                  Re: Tapering for VRayFur

                  Originally posted by vlado
                  You can simulate tapering of the fur strands for VRayFur if you map the opacity of the material along the strands, so that they are more transparent towards the tips:

                  Best regards,
                  Vlado
                  Can anyone tell me how to "map the opacity of the material along the strands"?

                  thanks!
                  Aversis 3D | Download High Quality HDRI Maps | Vray Tutorials | Free Texture Maps

                  Comment


                  • #10
                    Re: Tapering for VRayFur

                    Originally posted by flipside
                    Originally posted by vlado
                    You can simulate tapering of the fur strands for VRayFur if you map the opacity of the material along the strands, so that they are more transparent towards the tips:

                    Best regards,
                    Vlado
                    Can anyone tell me how to "map the opacity of the material along the strands"?

                    thanks!
                    You need to use the W mapping coordinates. So add a gradient ramp to the opacity slot of the fur's material, and change the mapping from UV to WU.
                    Torgeir Holm | www.netronfilm.com

                    Comment


                    • #11
                      cool tip. that's exactely what i need for an upcoming interior-shot.
                      thanks vlado.
                      ale
                      ____________________________

                      www.indivizuals.ch

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                      • #12
                        Here's a quick samplescene if anyone needs it. (max 9/VRay 1.5)
                        Download
                        Torgeir Holm | www.netronfilm.com

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                        • #13
                          Hey torgeir thanks a lot!
                          Aversis 3D | Download High Quality HDRI Maps | Vray Tutorials | Free Texture Maps

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                          • #14
                            thanks Egz!
                            Nuno de Castro

                            www.ene-digital.com
                            nuno@ene-digital.com
                            00351 917593145

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                            • #15
                              Is it normal that when you put any texture into the diffuse slot, the rendering becomes very very slow? For example I swapped the gradient from the opacity to the diffuse channel. If I try another texture, even simple ones, it gets very very slow.
                              Aversis 3D | Download High Quality HDRI Maps | Vray Tutorials | Free Texture Maps

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