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    Vray reflection mapping

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    • ibonI Offline
      ibon
      last edited by

      Sorry for my late answer. Thanks all for your interest and help. I have never used the "reflection per texture method", so i'm learning a lot in this thread. And yes, stinkie, that's exactly what i'm looking for, i didn't know it's name (specular maps). I have some arroway materials too kwistenbiebel, and they are the reason of my search. They came with diff, bump/disp and other one (now i know it's specular), and i wanted to know if it's possible to use in VfSU. Sorry again not for being clear when speaking english

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      • stefanqS Offline
        stefanq
        last edited by

        Ibon, I have an old post on asgvis, about specular maps, but for some reason, I can't access the site. But,I can tell you where I put specular maps, and it's fine. First , make a reflection layer for your material, then, go to reflection/M/(here you have fresnel)/put your map in the "fresnel color"
        I recommend you to use just reflections and specular without bump, to see if it's working. If it's OK, then you can use bump too!
        Good Luck!

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        • thomthomT Offline
          thomthom
          last edited by

          Yea, the forum just went down. At least from the default URL. You can access it from this alternative URL which works: http://asgvis.com/smf/index.php

          I tried searching for the thread you mentioned. But I couldn't find it. Found a different thread though related to specular reflections.
          http://asgvis.com/smf/index.php?topic=2248.msg11150

          Thomas Thomassen — SketchUp Monkey & Coding addict
          List of my plugins and link to the CookieWare fund

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          • StinkieS Offline
            Stinkie
            last edited by

            Odd. Stefan's solution differs from JoeB's.

            Edit: I can see you, FA! Give up yer secrets! 😉

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            • thomthomT Offline
              thomthom
              last edited by

              Seems there's many ways to apply specular maps.
              I figured it'd be of interest to see the reply of one of the ASGVis employees.

              Thomas Thomassen — SketchUp Monkey & Coding addict
              List of my plugins and link to the CookieWare fund

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              • stefanqS Offline
                stefanq
                last edited by

                Thanks for the link Thomas, here the link for my post....sorry for schrolling...it's on page 2..
                http://asgvis.com/smf/index.php?topic=4089.15
                Stinkie, yes, it's odd, but it's working.Check the link above.

                EDIT: the post it's about HDRI, but on page 2, almost at the bottom, I have some images about specular maps.

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                • stefanqS Offline
                  stefanq
                  last edited by

                  OK, I did another test...just to be sure it's still working 😆
                  I have a diffuse layer with the color, and another one ( ghost layer) witch it's transparent, for helping vray to set the correct UV for the specular map.

                  http://img211.imageshack.us/img211/9537/specular.th.jpg

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                  • StinkieS Offline
                    Stinkie
                    last edited by

                    @thomthom said:

                    Seems there's many ways to apply specular maps.
                    I figured it'd be of interest to see the reply of one of the ASGVis employees.

                    Yeah, that'd be nice.

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                    • thomthomT Offline
                      thomthom
                      last edited by

                      @unknownuser said:

                      @thomthom said:

                      Seems there's many ways to apply specular maps.
                      I figured it'd be of interest to see the reply of one of the ASGVis employees.

                      Yeah, that'd be nice.

                      JoeB was that reply. 😉

                      Thomas Thomassen — SketchUp Monkey & Coding addict
                      List of my plugins and link to the CookieWare fund

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                      • StinkieS Offline
                        Stinkie
                        last edited by

                        lol. Nevertheless I'd like to see, say, Damien Alomar elaborate on this issue. He usually does a good job explaining things.

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                        • thomthomT Offline
                          thomthom
                          last edited by

                          @unknownuser said:

                          lol. Nevertheless I'd like to see, say, Damien Alomar elaborate on this issue. He usually does a good job explaining things.

                          Yup. His replies are valuable gems. I've been meaning to collect some of them into a tips/tricks post.

                          Thomas Thomassen — SketchUp Monkey & Coding addict
                          List of my plugins and link to the CookieWare fund

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                          • StinkieS Offline
                            Stinkie
                            last edited by

                            Whoa! Err ... dankie? Dankiewel? Whatever - thanks!

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                            • free agentF Offline
                              free agent
                              last edited by

                              hey i did a quick test after thomthom PM'd me on the matter, the thing about spec maps is u only notice them in shaded area where the light would hit them where they not in shadow.

                              raw render:

                              http://i167.photobucket.com/albums/u143/FreeAgent84/test01.jpg

                              notice how the walls facing the camera get less reflection than the ones perpendicular to those, this is the fresnel effect, so a couple of things need to come togther in order to achieve this effect.

                              the refelction channel:

                              http://i167.photobucket.com/albums/u143/FreeAgent84/test01reflection.jpg

                              tip: in photoshop overlay the reflection channel over the render and make the layer mode: SCREEN, this will increase the reflection of the raw render.

                              i attached the plaster vismat i made from a cgtextures image... and the model, so u can go through the material to see how its made. the spec map is placed under the fresnel image slot.


                              Plaster rough_1.zip


                              SPECMOD.rar

                              http:i167.photobucket.comalbumsu143FreeAgent84bug.gif

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                              • free agentF Offline
                                free agent
                                last edited by

                                haha dis 'n plesier.

                                http:i167.photobucket.comalbumsu143FreeAgent84bug.gif

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                                • ibonI Offline
                                  ibon
                                  last edited by

                                  Guys, really, really Thanks

                                  Freeagent, now with the scene on my hands everything's clear. Thanks everyone for taking so much time with this. I wish some day i will help you as you have helped me

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                                  • thomthomT Offline
                                    thomthom
                                    last edited by

                                    Did a little test scene. Used an HDRI as I wanted to get a colour tint to the lighting. Too bad the Sun shadows are gone. (If I remember correctly, I can get them if I turn on default light and decrease the GI light while also adjusting the camera exposure.)


                                    Render02.png

                                    Thomas Thomassen — SketchUp Monkey & Coding addict
                                    List of my plugins and link to the CookieWare fund

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                                    • ibonI Offline
                                      ibon
                                      last edited by

                                      Very beautiful scene thomthom. I have tried to make my own with an HDRI map but after more than 10 trial errors can't get the desired position for my sun. Is any easyer method to quickly position your hdri?

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                                      • thomthomT Offline
                                        thomthom
                                        last edited by

                                        Hide all geometry, or do material override so it renders quickly and then do a few trial and errors of the HDRI horizontal position. Or you could do what Richard do; quite nice setup: http://www.sketchucation.com/forums/scf/viewtopic.php?f=15&t=18001&p=145253

                                        Note that you won't have much luck if you try to adjust the vertical position of the SUN source from and HDRI. That will just mess things up.

                                        Thomas Thomassen — SketchUp Monkey & Coding addict
                                        List of my plugins and link to the CookieWare fund

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                                        • N Offline
                                          nomeradona
                                          last edited by

                                          @unknownuser said:

                                          lol. Nevertheless I'd like to see, say, Damien Alomar elaborate on this issue. He usually does a good job explaining things.
                                          yeap, whenever damien reply assurely my eyes are there...

                                          visit my blog: http://www.nomeradona.blogspot.com

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                                          • N Offline
                                            nomeradona
                                            last edited by

                                            @unknownuser said:

                                            Whoa! Err ... dankie? Dankiewel? Whatever - thanks!
                                            Oh thank God FA is here to give some explanation about this.
                                            hey stinkie are you saying FA is a donkey? lol.

                                            visit my blog: http://www.nomeradona.blogspot.com

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