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[Example] V-Ray Displacement

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  • B Offline
    bhbarchitects
    last edited by 19 Aug 2011, 19:14

    The scene that ThomThom has been good enough to supply has a link to the displacement on a local machine.

    If you save this map to your pc and then link to it, the scene should render fine.

    Hope this helps

    Matthew


    disp file for glass


    displacement settings

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    • V Offline
      valerostudio
      last edited by 19 Aug 2011, 19:24

      I might have been clear. I apologize for that. What I am referring to is the workaround that lets you rendering at 1/2 res with displace off and then you load your IR Map and LC Maps and render at full res. Andy mentions that he thinks there is a bug in the latest version that will not let you load the IR and LC maps properly. That's my issue right now.

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      • A Offline
        andybot
        last edited by 22 Aug 2011, 00:49

        @valerostudio: I had a thread about this on the Chaosgroup forum. There is a trick that's worked most of the time - has to do with autosave. As long as you have a file name selected in the IRmap autosave slot, the saved maps seem to work.

        bug and solution for indirect illumination autosave bug
        (registration required)

        http://charlottesvillearchitecturalrendering.com/

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        • M Offline
          Moderat
          last edited by 5 Jan 2012, 13:34

          @3deviator said:

          3deviator

          I followed your steps, I liked the result.
          When I preview render in the material editor it looks good, but when I do a render from my scene it doesn't show the displacement.. I have this when rendering other kind of materials with displacement too. So there must be something wrong, I checked all the settings from your images with mine.. and they are the same. Any idea? Really frustrating, been looking for days now (reason why my water material isn't working properly too, see other thread).
          grass
          waterrender

          Thank you,

          Bert

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          • T Offline
            thomthom
            last edited by 5 Jan 2012, 13:47

            Note that the material editor scene isn't well suited to preview architectural materials. When you create displacement materials you will see that the displacement amount will look different. The displacement multiplier represent inches, so calculate how big your multiplier need to be.

            Then you also need to make sure that any displaced geometry is completely isolated. A geometry with a displacement material must not touch any geometry with any other material. That is very important.

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

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            • A Offline
              andybot
              last edited by 5 Jan 2012, 14:00

              also, make sure also that any edges in your group do not have any other material applied. That's tricked me up once or twice...

              http://charlottesvillearchitecturalrendering.com/

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              • M Offline
                Moderat
                last edited by 5 Jan 2012, 14:11

                I switched the displacement multiplier up to 50, but it doesn't change a thing.
                I created a grey rectangle outside my model to check if it would work there (so it isn't connected to another material).. still the same?
                Can someone check my sketchup file? Really stuck here. As far as I know I'm not using any groups for the model, maybe by accidence a while ago (been working on it for quite some time now..).
                http://www.mediafire.com/?pxmhwih5p0t5li3
                (if you open it, does it look like a heavy file? Sketchup blocks from time to time for a minute or 2..)

                Thank you!

                Bert

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                • T Offline
                  thomthom
                  last edited by 5 Jan 2012, 14:15

                  Still downloading, but did you isolate the geometry? That is the most important thing to do.

                  Also, exactly what version of VfSU do you use?

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

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                  • A Offline
                    andybot
                    last edited by 5 Jan 2012, 14:21

                    i wonder if he's confused that isolating geometry is not just having it separate but to actually make a "group" or "component" out of it. Haven't had a chance to look at the model either.

                    http://charlottesvillearchitecturalrendering.com/

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                    • T Offline
                      thomthom
                      last edited by 5 Jan 2012, 14:26

                      Just opened the model - looking....

                      (Just a note on the model in general - I purged the model. erased all the scenes. Erased everything except the test square the camera was focused on and saved it - 1.9MB ... from 40MB. Please purge your model before sharing - everything will be smaller and quicker. People find a 2MB file easier to initiate a download for rather than 40MB.)

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

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                      • T Offline
                        thomthom
                        last edited by 5 Jan 2012, 14:29

                        @andybot said:

                        i wonder if he's confused that isolating geometry is not just having it separate but to actually make a "group" or "component" out of it.

                        This is true - everything was ungrouped.

                        Once grouped it worked fine.

                        (Though, I found that any geometry in the same context - connected or not - prevents displacement. Wonder if that changed since earlier versions. Before it could be in the same context. But alas not not. Complete isolation is required.)

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

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                        • M Offline
                          Moderat
                          last edited by 5 Jan 2012, 15:38

                          Hi,

                          thank you both for helping me out. It was the group thing that caused the render to 'misbehave'
                          I tried it on a small patch, and it worked. But it took a half an hour to render a small piece.. so I'm not going to use it in my large scene (will take ages to find the right settings & get the final render). Very frustrating that all your materials have to be put apart from each other to get a working render.. don't see how you can get walls aligned to each other properly if you have consider this. Going to try the sea water later this evening, it's crucial to get it right for this project.

                          Thank you again, and sorry for the large file. Will keep it in mind for the next time.

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                          • T Offline
                            thomthom
                            last edited by 5 Jan 2012, 15:44

                            Yea - I never liked displacement grass anyway. Just end up looking like a spikestrip.

                            I assign a colour to the Colour ID of the material and render out a Material ID pass which I use in Photoshop as a mask where I overlay real grass from photos.

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

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                            • T Offline
                              thomthom
                              last edited by 5 Jan 2012, 16:32

                              @andybot said:

                              which you can see a tutorial I did a while back on that method.

                              πŸ‘ πŸ‘

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

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                              • M Offline
                                Moderat
                                last edited by 6 Jan 2012, 01:51

                                Yes, seems a lot easier to do it post-rendering. Thanks, I'll be using it for my grass.

                                Now I've been trying again to get my (sea)water working. I managed to let vray render my material, but now it's coming out all wrong.
                                It looks exactly the same in the preview in material editor as in the youtube tutorial (http://youtu.be/vbHdi5bEdlI), but when rendering it comes out very pure blue and not transparent. I redid the whole process 3 times.. still the same result.
                                Anyone an idea? I'm really getting tired of this same kind of problem over and over again πŸ˜„.

                                sameproblem.jpg
                                http://www.mediafire.com/?52she3kywadj4yz
                                (I copied the water to another file so my SU-file isn't too big to download. )

                                Now to bed! 3 am here.
                                Thanks in advance,

                                Bert

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                                • majidM Offline
                                  majid
                                  last edited by 19 Mar 2012, 11:33

                                  dear mate, do you mind to try this one?
                                  it is just a quick tweak over glass material..... I'vnt changed the refraction IOR ( it is now 1.5 and must be 1.3 for real water) so you may yourself do it... or maybe you prefer a differend wave "size" on bumb section


                                  waterminipack.zip

                                  My inspiring A, B, Sketches book: https://sketchucation.com/shop/books/intermediate/2612-alphabet-inspired-sketches--inspiring-drills-for-architects--3d-artists-and-designers-

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                                  • Whiteowl77W Offline
                                    Whiteowl77
                                    last edited by 7 Aug 2012, 22:18

                                    Hi Thomas, SU Modelers

                                    I am working on an exterior Rendering of a residence and currently working on the materials and textures. I have created my own custom stone from a photo I took and manipulated in photoshop. I was able to manipulate the displacement/bump-map images needed for that as well, as I found some good video tutorials on such.
                                    I am wondering: Are there any repositories/resources for SketchUp/Vray exterior material displacement/bump-map images (alpha channel), or does the artist need to make each one him/herself?

                                    Can you recommend any settings for painted wood siding -- I downloaded some siding from: http://www.vray-materials.de/register_complete.php?regkey=923c1bebe6cc014330075ecca8a6f87f -- but , as mentioned above, this is formatted for 3DS Max not SU. I am trying to use it regardless to create the displacement image. I cannot get the image to tile or repeat, or any effect to take place. I dont want to use the "out of the box" siding material in SketchUp due to the continuios lines that make up the generic pattern.
                                    Maybe, I will take the siding image texture material in SU, save it, edit it in Photoshop, and use the B&W/grayscale to make the displacement, and then leave the material fill color/diffuse a solid color, and see if that renders correctly.
                                    Any thoughts?

                                    Whats the best way to render/depict exterior siding?
                                    Thanks

                                    Andrew

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                                    • broomstickB Offline
                                      broomstick
                                      last edited by 8 Aug 2012, 12:32

                                      Hi there! Can you tell me exactly which siding material you are trying to use? I'll have a go to convert it into vismat πŸ˜‰

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                                      • P Offline
                                        penumbra
                                        last edited by 11 Aug 2012, 18:15

                                        @andybot. Would love to see that tutorial. Link appears to be dead?

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                                        • A Offline
                                          andybot
                                          last edited by 12 Aug 2012, 13:13

                                          which you can see a tutorial I did a while back on that method.

                                          Edit: updated link (I changed my blog domain name recently)

                                          http://charlottesvillearchitecturalrendering.com/

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