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    A quest for better understanding of textures

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    • thomthomT Offline
      thomthom
      last edited by

      That's a nice sample. Thanks! ๐Ÿ‘

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

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      • eidam655E Offline
        eidam655
        last edited by

        wow, thanks for this ๐Ÿ˜„

        another thing i discovered is that with 'use_3d_mapping' checked (ie. it's ON), the result is just like you showed us; however, if you uncheck it, you'll get a texture of the wood end. demonstrating on your material:

        http://i.imgur.com/VZzrB.jpg

        however, i couldn't get center_v get to change the scale on my textures. i would say that center_u and _v define the center position of the texture, so i don't think this would affect the size... more testing is needed though.

        http://i.imgur.com/Gwu0Q.jpg

        strange thing is that even when in the TexWood preview window something is happening, in the material preview and in the render not so many things change...

        I'm using SketchUp 2017, V-Ray 3.4

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        • pyrolunaP Offline
          pyroluna
          last edited by

          Oh yeah also this; the placement is dependent on the origin of the model or component. I'm not exactly sure how the difference between applying a material to a face or to a component is in play, but the component axes thing is clearly demonstrated in the example below:

          wood_thingies2.jpg

          In this image, the two little blocks on the floor are the same component - one of them made unique and the axes of that one have been put at an angle of 45 degrees in two directions.
          As for the balls, they are the same component, one of them is rotated.

          wooden balls.png

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          • eidam655E Offline
            eidam655
            last edited by

            just for reference, how big are your... items? ('balls' would seem inappropriate ^^)

            my sphere is 2,646m in diameter.

            I'm using SketchUp 2017, V-Ray 3.4

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            • pyrolunaP Offline
              pyroluna
              last edited by

              the big ones are 470mm in diameter, the little blocks are 100mm

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              • broomstickB Offline
                broomstick
                last edited by

                may I publish here a little tutorial on how to use the Vray Blend Material?

                It's useful to have bump maps without a diffuse texture (sort of)

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                • eidam655E Offline
                  eidam655
                  last edited by

                  sure, please, go ahead ๐Ÿ˜„

                  I'm using SketchUp 2017, V-Ray 3.4

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                  • thomthomT Offline
                    thomthom
                    last edited by

                    @broomstick said:

                    may I publish here a little tutorial on how to use the Vray Blend Material?

                    It's useful to have bump maps without a diffuse texture (sort of)

                    Yes. But please post in a new thread, and tag it [Tutorial] so it's easier to find.

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

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                    • broomstickB Offline
                      broomstick
                      last edited by

                      @thomthom said:

                      @broomstick said:

                      may I publish here a little tutorial on how to use the Vray Blend Material?

                      It's useful to have bump maps without a diffuse texture (sort of)

                      Yes. But please post in a new thread, and tag it [Tutorial] so it's easier to find.

                      Gotcha ๐Ÿ˜‰

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                      • panixiaP Offline
                        panixia
                        last edited by

                        @broomstick said:

                        may I publish here a little tutorial on how to use the Vray Blend Material?

                        It's useful to have bump maps without a diffuse texture (sort of)

                        yes you can!
                        ๐Ÿ˜

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                        • john2J Offline
                          john2
                          last edited by

                          @eidam655 said:

                          hello winGman,

                          create a material, open it in material editor:
                          [attachment=1:bo417hjm]<!-- ia1 -->texgrid_tut_1.png<!-- ia1 -->[/attachment:bo417hjm]
                          assign the TexGrid texture to the Diffuse channel (or some other channel, depending on your desired usage) and try to play around with the UV repeat values to adjust its size:
                          [attachment=2:bo417hjm]<!-- ia2 -->texgrid_tut_2.png<!-- ia2 -->[/attachment:bo417hjm]

                          after this, my render looks like this:
                          [attachment=0:bo417hjm]<!-- ia0 -->texgrid_tut.png<!-- ia0 -->[/attachment:bo417hjm]

                          and that should be it ๐Ÿ˜„

                          is there anyway we can change multiplier by measuring tilesize. ? this would be useful while making bump maps for tiles divided in a grid. say if i want tilesize 300mm by 300mm how can i do it?

                          Sketchup Make 2017 (64-bit), Vray 4.0 , Windows 10 โ€“ 64 bit, corei7-8750H, 16GB RAM, Nvidia GeForce GTX 1050Ti 4GB

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                          • panixiaP Offline
                            panixia
                            last edited by

                            @eidam655 said:

                            • rock/noise pattern. is not affected by UV repeat values.

                            • smoke/noise pattern. is not affected by UV repeat values.

                            • snow/noise pattern with alternating alpha. is not affected by UV repeat values.

                            • speckle/noise pattern. is not affected by UV repeat values.

                            • splat/noise pattern. is not affected by UV repeat values.

                            • presumably stucco/noise pattern. is not affected by UV repeat values. sadly,

                            • is not affected by UV repeat values. in fact, it's the same case as with Stucco. a

                            • is not affected by UV repeat values. i

                            my 50 cents to help your quest. ๐Ÿ’ญ
                            recently i discovered that for the textures rock - stucco - smoke - snow - speckle - splat - water you should untick "use 3d mapping" to enable UV tiling control. ๐Ÿ‘

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                            • J Offline
                              jackwatson
                              last edited by

                              Has anyone ever come across any clear documentation for all of these effects? The fact that there are so many cool procedural maps available, but the tutorials for how to utilise them are not seems a waste.

                              I've spent a good few hours playing around with them before but managed to get no practical use out of them because, as you know, with all the variables you can change it would take weeks or months to learn anything through trial an error.

                              This is probably less of an issue for Max users who tend to have had some kind of professional training, but those who use Sketchup for visualisation are at the shallow end of the visualisation pool are largely self trained I imagine. (Along with using amazing resources such as Sketchucation, of course ๐Ÿ˜‰)

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                              • eidam655E Offline
                                eidam655
                                last edited by

                                well, at least i haven't, that's why i opened this thread ๐Ÿ˜„

                                I'm using SketchUp 2017, V-Ray 3.4

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                                • B Offline
                                  bbergem
                                  last edited by

                                  Do the original images to this thread still exist? I've been looking for this information on vray materials for a while, and this is the most promising result.. but it seems the image links are no longer valid? Or, can the information be found elsewhere?

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                                  • eidam655E Offline
                                    eidam655
                                    last edited by

                                    hm, it seems my access to the old server got taken down (or my files have).

                                    i'll try to find the images somewhere in my backups... however, all of these were for vray 1.49 and the question is how relevant they still are.

                                    but as i said, i'll try to find them, just in case the were.

                                    I'm using SketchUp 2017, V-Ray 3.4

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                                    • NemesisN Offline
                                      Nemesis
                                      last edited by

                                      @eidam655 said:

                                      hm, it seems my access to the old server got taken down (or my files have).

                                      i'll try to find the images somewhere in my backups... however, all of these were for vray 1.49 and the question is how relevant they still are.

                                      but as i said, i'll try to find them, just in case the were.

                                      Hi eidam655, are there any chances that you have found images from the first message?

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                                      • eidam655E Offline
                                        eidam655
                                        last edited by

                                        Hi, I haven't found the images.

                                        But after the school's done in January I'll try and recreate the post again; the question is, how many people would be interested in the old 1.49 version and how many in the new VRay 2.0, since I imagine quite a lot of people have adopted the new release.

                                        let me know,
                                        eidam

                                        I'm using SketchUp 2017, V-Ray 3.4

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                                        • NemesisN Offline
                                          Nemesis
                                          last edited by

                                          Hi eidam655, so are there some news about sample pictures?

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                                          • onzkiO Offline
                                            onzki
                                            last edited by

                                            Hi, I bet many have asked or noticed this already- the "reset color" in material editor is greyed out since I installed Vray, now it's hard to revert to original texture after playing around with sliders. Also, my textures was automatically saved and renamed into a temp folder (Chaos Group), not a big deal though..

                                            Have someone figured out how to unlink Vray from overriding my materials control? I appreciate any help, I'm really hoping to get the "reset color" button working again. Thanks a lot!

                                            PS: (to Admin) If this is the wrong section, please move it. thanks!


                                            [/hr]Dell Alienware Area-51. SKU 2021 Pro. AutoCAD 2023. Landscape design firm

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