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    V-ray questions

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    • kaluK Offline
      kalu
      last edited by

      @solo said:

      Damien, thank you for taking the time out to explain some of the technicalities of Vray and welcome to SCF.
      It's always a good thing when developers are able to consult and advise on open forum, I know you are very active at ASGvis and glad you have also 'broken the seal' here too.

      My next question is regarding displacement (I'm sure that this is a well covered subject on the vray site, but for those who are new or in a deciding capacity as far as render engines goes I will ask my questions here)

      I have been trying to master displacement on simple objects before using it on any real projects, I have noticed that it totally kills render times which is expected and in line with most other render apps. I have found a few strange behaviors however, below is a simple SU model with a grass displacement on it, it rendered perfectly the first time but when iI decided to add the white band the render was flat without any displacement, I then made the band a group and rendered and it worked again giving me the result below. My question is... does the grouping of two material adjacent to another where one is displaced and the other not have any significance?


      http://img25.imageshack.us/img25/474/vraydisplacementsetup.jpg

      [flash=560,340:2adlt0n9]http://www.youtube.com/watch/v/fBDTBV8qNWg[/flash:2adlt0n9]


      http://img515.imageshack.us/img515/9630/grassdisplace8.jpg

      Hi,

      There is anyway that you put for all the settings for this excellent way to make grass in your worm. Kind to step by step to make displacement. I look in the web and asgvis and is not very clear how I can get this awesome results, Please need help ASAP with this I have a presentation in my college.

      thanks.

      THE ONLY DIFFERENCE BETWEEN FICTION AND REALITY IS WHEN FICTION HAS TO BE CREDIBLE

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      • soloS Offline
        solo
        last edited by

        Kalu

        I'd love to but I unfortunately was using a trial version which has expired a long time ago, I'm sure that one of the many Vray guys here will be able to help.

        http://www.solos-art.com

        If you see a toilet in your dreams do not use it.

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        • kaluK Offline
          kalu
          last edited by

          @solo said:

          Kalu

          I'd love to but I unfortunately was using a trial version which has expired a long time ago, I'm sure that one of the many Vray guys here will be able to help.

          Hi SOLO,

          Thank you for your quick response, I've try and try for 6 hours with many options and I not close to this results. I post the help in ASGVIS forum and I hope someone come out with the exact help.
          Also are you the same guy in the PODIUM forum? I am there since they started the soft.

          Kalu.

          PS. PLEASE any help ASAP I appreciate!!!!!!!

          THE ONLY DIFFERENCE BETWEEN FICTION AND REALITY IS WHEN FICTION HAS TO BE CREDIBLE

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          • soloS Offline
            solo
            last edited by

            Kalu, I'm sure someone there will be around soon enough to give more help.

            Yes, that's me.

            http://www.solos-art.com

            If you see a toilet in your dreams do not use it.

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            • S Offline
              steelers05
              last edited by

              just got a chance to read through this thread...Solo, have you solved your recent problem? I am not sure if i am understanding this completely but it sounds like you took a model to a new computer correct? Vray is very similar to the way autocad handles xreferences (if that sounds familiar?) and you need to have the root files in the original location that they were when you first applied them. I hope that helps?

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              • soloS Offline
                solo
                last edited by

                Steelers, I did actually solve it, but that's in the past as I was running the trial version, maybe when the economy picks up or I will look into spending the money to buy Vray 2.

                http://www.solos-art.com

                If you see a toilet in your dreams do not use it.

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                • 2 Offline
                  21D
                  last edited by

                  @solo said:

                  Last one for the displacement tests, using a single face (no thickness) with a texture and displacement.


                  http://img26.imageshack.us/img26/9169/carpetvray.jpg

                  I believe displacement is under the belt, now the next thing I need to get a grip of is D.O.F, anyone got any good tips that can help?

                  Hi there SOLO, first off, really great results there,
                  second would you mind sharing the SKP of the rug also so i can dissect the vray settings and the disp image??

                  "I prefer drawing to talking. Drawing is faster, and leaves less room for lies."
                  Le Corbusier

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                  • soloS Offline
                    solo
                    last edited by

                    Rachid, I will take a look for it tommorrow (it's on an old machine)

                    http://www.solos-art.com

                    If you see a toilet in your dreams do not use it.

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                    • 2 Offline
                      21D
                      last edited by

                      @solo said:

                      Rachid, I will take a look for it tommorrow (it's on an old machine)

                      hey thnx mate, don't worry i don't mind the wait,
                      they say "great things come to those who wait" 😛 so i do qualify for that hahaha
                      thnx again mate

                      "I prefer drawing to talking. Drawing is faster, and leaves less room for lies."
                      Le Corbusier

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                      • E Offline
                        edu1987
                        last edited by

                        how can i get rid of that white spots? im using irradiance as primary and light cache as secondary engine everything else as default settings.


                        render.JPG

                        always be psycho about perfection

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                        • thomthomT Offline
                          thomthom
                          last edited by

                          A quick-fix is to Clamp Colors under Color Mapping.

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

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                          • soloS Offline
                            solo
                            last edited by

                            Rachid, I cannot seem to find that carpet scene any more, I can give you the maps however, in the zip file is a normal, diffuse, specular and displacement map.


                            CARPET.zip

                            http://www.solos-art.com

                            If you see a toilet in your dreams do not use it.

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                            • 2 Offline
                              21D
                              last edited by

                              @solo said:

                              Rachid, I cannot seem to find that carpet scene any more, I can give you the maps however, in the zip file is a normal, diffuse, specular and displacement map.

                              Just now noticed that you posted Pete,
                              thnx for the help,
                              having the maps i can play around with them to find as close as result as you mate, so don't worry about the scene 😉
                              thank you again for the help mate

                              "I prefer drawing to talking. Drawing is faster, and leaves less room for lies."
                              Le Corbusier

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                              • E Offline
                                edu1987
                                last edited by

                                @solo said:

                                I can give you the maps however, in the zip file is a normal, diffuse, specular and displacement map.

                                I downloaded the carpet too thks Solo, but what is the carpet773_NORMAL image for? and also were do u put the specular image? In the fresnel color or in the highlight and reflection glossiness there is kind of a debate in that.

                                always be psycho about perfection

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                                • E Offline
                                  edu1987
                                  last edited by

                                  @thomthom said:

                                  A quick-fix is to Clamp Colors under Color Mapping.

                                  Hmm...thought that only worked with colors 😄 will try then thks

                                  always be psycho about perfection

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                                  • W Offline
                                    wahoowetzel
                                    last edited by

                                    @edu1987 said:

                                    how can i get rid of that white spots? im using irradiance as primary and light cache as secondary engine everything else as default settings.

                                    I'm using the same primary and secondary engines and I seem to get these white spots whenever I have the reflection glossiness set to anything less than 1 (lower gets worse I think). What is the cause/solution to this?? I basically just want a material that that is reflective but not like a mirror, is that so hard? 😢

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                                    • W Offline
                                      wahoowetzel
                                      last edited by

                                      I've been using vray for 3DS max for about 4 years now, I've been using VfSU for about 2 months and I'm having some issues with graininess. I haven't had this issue with max, so I'm wondering if you guys can help me.

                                      I'm looking to get a metal material like a aluminum or steel with a powder coat finish. So something that is reflective, but not like a mirror. I'm modeling mullions and garage doors using this material. Here are some pics of the material in context:
                                      test 1.png

                                      I know there are a lot of settings that effect the materials and how they render out. I've done a bunch of tests using different environment settings and I've tried several material adjustments. But if any body out there would so kind or interested in helping me out, I set up a test file using the same materials I'm using in my scene.

                                      I want to say it's either a shadow related setting in the environment rollouts, or I'm just plain screwing up the material for some reason, either way I could use some help. Thanks!


                                      SCF test scene img.png


                                      test scene.skp

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                                      • V Offline
                                        vidy
                                        last edited by

                                        perhaps something like this (using vray 1.5)

                                        It's a bit strange coz, SU can't update the material as seen on my render image, anyway here's the file.


                                        metal.jpg


                                        test scene.skp

                                        still so much to learn..

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                                        • W Offline
                                          wahoowetzel
                                          last edited by

                                          Hey thanks for the test. Did you adjust the lighting/shadow settings?

                                          The client was happy with the images that I got out. It was not the most design rich project I've worked on, but a great exercise to try out the new vray. There were definitely ALOT of growing pains with the new release, but I have to admit, I'm addicted to the ease of alpha transparency support.

                                          Take a look, feedback is more than welcome. I could not have done it without the help of you guys in the forum.


                                          Admin Entry.jpg


                                          Admin Side.jpg


                                          Admin Low.jpg

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                                          • V Offline
                                            vidy
                                            last edited by

                                            you're welcome wahoo, yes i thought i was change a bit about physical camera option, hopefully it recorded on my file, coz sometimes vray for su forgot about the setting when we move the file to other computer 😒

                                            bytw, is the image you posted originally from the vray su render? well, i think, it will be better if you play a bit on PS (or image editing software) to tweak for brightness and contrast of the image.

                                            nice project bro..

                                            regards,
                                            vidy

                                            still so much to learn..

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