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    White line appearing around png render

    Scheduled Pinned Locked Moved V-Ray
    renderpluginsextensions
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    • olisheaO Offline
      olishea
      last edited by

      Is the saved PNG actually showing a transparent background though?

      I've only noticed the white line around say a PNG tree right on the edge of the texture. I've not seen it on saved render before, but then again I never normally have any transparent space. It's really annoying!!! It's like edge of a PNG has a fringe in SU.

      oli

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      • A Offline
        ampersand
        last edited by

        yup exactly that is happening.
        im fairly certain this didnt happen on older versions.

        im taking it is an issue then?
        i cant seem to find any information regarding it anywhere

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        • olisheaO Offline
          olishea
          last edited by

          Save in a different format for the time being if you are in a rush. Or do you really need the transparent part? Use a mask preset if so.

          I dunno if it's just a native characteristic of PNGs or the way SU deals with them.

          oli

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          • V Offline
            valerostudio
            last edited by

            I use PNG all the time and have never had this issue while saving from VR 1.49.01. Which version are you using?

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            • andybotA Offline
              andybot
              last edited by

              if your background is very bright/ white - then anti-aliasing will combine the edge pixels of your model and your background. try to make your background darker and see if it helps. otherwise, you can try turning off AA

              http://charlottesvillearchitecturalrendering.com/

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              • thomthomT Offline
                thomthom
                last edited by

                Can we see a sample output please?

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

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                • A Offline
                  ampersand
                  last edited by

                  im using version 1.49.02

                  and it does appear to reduce if i darken the background i am working on. but i see that more as a quick fix if nothing else lasting works.

                  all i want is a crisp sharp image when i save my png. the transparency is important firsnt and foremost as the images i render are to be singular entities for an isometric map.

                  ive added a screen shot of a png render, but ive put it onto a black background to just help show up the edges better


                  whiteline.jpg

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                  • andybotA Offline
                    andybot
                    last edited by

                    looks to me like an issue with a dark material on a light background. Did you try turning off anti-aliasing (in the image sampler tab)?

                    http://charlottesvillearchitecturalrendering.com/

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                    • A Offline
                      ampersand
                      last edited by

                      when i turned off anti aliasing...it looked about 5 times worse ๐Ÿ˜ž

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                      • andybotA Offline
                        andybot
                        last edited by

                        Well, you would have to increase your resolution if AA is off, but anyhow, sounds like that may not be the issue. Is there a model or part of a model that you can post?

                        http://charlottesvillearchitecturalrendering.com/

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                        • chonC Offline
                          chon
                          last edited by

                          Hello,

                          in your vray bitmap material render panel, try to set the "filter type" in "bitmap buffer" on "No filter". I had good results with that setting.

                          SU2019 pro 19.3.253 + VRay 4.00.02 (Next) on Win10-64Bits

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                          • A Offline
                            ampersand
                            last edited by

                            thanks chon ill give that a try tonight. if all else fails ill post up a model..but i dont see why it would be a model. this happens even on a simple square block,
                            i was figuring it was something to do with the rendering itself more than the model

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                            • andybotA Offline
                              andybot
                              last edited by

                              the idea is that with a model, we can look at your vray settings and see if there's a solution.

                              http://charlottesvillearchitecturalrendering.com/

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