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    Vray reflection mapping

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    • thomthomT 離線
      thomthom
      最後由 編輯

      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 離線
        Stinkie
        最後由 編輯

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

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

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        • thomthomT 離線
          thomthom
          最後由 編輯

          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 離線
            stefanq
            最後由 編輯

            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 離線
              stefanq
              最後由 編輯

              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 離線
                Stinkie
                最後由 編輯

                @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 離線
                  thomthom
                  最後由 編輯

                  @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 離線
                    Stinkie
                    最後由 編輯

                    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 離線
                      thomthom
                      最後由 編輯

                      @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 離線
                        Stinkie
                        最後由 編輯

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

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                        • free agentF 離線
                          free agent
                          最後由 編輯

                          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 離線
                            free agent
                            最後由 編輯

                            haha dis 'n plesier.

                            http:i167.photobucket.comalbumsu143FreeAgent84bug.gif

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                            • ibonI 離線
                              ibon
                              最後由 編輯

                              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 離線
                                thomthom
                                最後由 編輯

                                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 離線
                                  ibon
                                  最後由 編輯

                                  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 離線
                                    thomthom
                                    最後由 編輯

                                    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 離線
                                      nomeradona
                                      最後由 編輯

                                      @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 離線
                                        nomeradona
                                        最後由 編輯

                                        @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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                                        • N 離線
                                          nomeradona
                                          最後由 編輯

                                          thats a cool linking render Thom

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

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                                          • thomthomT 離線
                                            thomthom
                                            最後由 編輯

                                            What I'd like to know is how to create a render with a tinted sun but with sun shadows as in the picture posted by the original poster. Anyone got some tips?

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

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