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    Originally posted by koola View Post
    Thank for the test.

    This is really weird, I just see I don't have this problem with high/medium/preview setting, just with production setting.
    I confirm the leak in v 4.11.2, and only with production settings

    Comment


      If we play with "Cube" position (ie, moving it away from "Bloc", even slightly), or its rotation on Z axis, the "leak" effect tends to change and/or disappear.
      Could it be related to the increase in the amount/distance of Light that Bounces (better know as the Troutman Effect) in prod mode ?
      That could explain why it appears only with the production settings.

      Comment


        baselightmass.ini
        in prod quality settings :

        NumIndirectPhotonsScale=8 -> NumIndirectPhotonsScale=4 and the leak effect is gone (same value than the one for "high" settings)

        (then maybe the "NumImportanceSearchPhotonsScale" should be changed accordingly, from 3 back to 2 (same value than the one for "high" settings))

        Comment


          The problem is also fixed with NumIndirectPhotonPathsScale value set to 3 (instead of 2) ... but if you move/scale the box the leak is back.
          ____________________________________________________________
          https://twitter.com/Koola_UE4

          Comment


            Originally posted by koola View Post
            The problem is also fixed with NumIndirectPhotonPathsScale value set to 3 (instead of 2) ... but if you move/scale the box the leak is back.
            Confirmed.

            only NumIndirectPhotonsScale=4 seems to solve this issue, even if the box is moved/scaled.
            Last edited by Ptyx; 05-17-2016, 01:47 PM.

            Comment


              Originally posted by Raghu View Post
              Nice thought Sythen. I was also thinking something similar in approach but different in sense of its implication like - It would be nice if we can see the Photon Gathering/Importance Sampling while Light Build (Like Vray Irradiance Samples or any other common renderer out in the market), that will give tremendous visual information for actual working of Lightmass and will eventually help in understanding and manipulating settings in Baselightmass somewhat easy. 4.11 is far more better then any previous Engine versions but still I feel like it lack basic tools for refining or finding bugs while light building, especially when it comes to tweaking Lightmass settings (Lightmass settings available in Engine UI are painfully simple). As I have reiterated many times before that simple settings of Lightmass are perfect for quick setup but may become major hindrance when it comes to adjusting or manipulating it for realistic light build, Ultimately there is no other option but to jump in BaseLightmass for Final Built. Portals made a major impact for small scenes now, simply putting it solves 90% of the bugs but for complex scenes we still require some kind of editing in BaseLightmass to get that super clean look.

              It would be nice if we can see some more features in Engine UI itself regarding Lightmass, More detailed settings related to Photon Density, Irradiance Samples, Irradiance Radius and so on with ample explanations in Engine Docs for Noobs like me and not only for hardcore programmers out there (I think Engine Help Documents need serious update regarding the Lightmass Settings and Portal help).

              Lighting Quality presets are really helpful but If we can get something similar for Lightmass settings also like - Expert Mode or Advanced Mode - Giving users enough settings to fully control the behavior and intricacies involved.
              My guess is that it will become a reality soon enough. Epic is realizing their engine has a lot of potential outside the gaming world and they are adjusting. Have you watched the Unreal Engine Enterprise twitch stream? They talk about that. I think lots of new solutions has been developped for the Mclaren car customizer and soon we'll see more and more improvement for architects, designers, etc! Exciting times!

              Comment


                so guys.. i still dont get it. can somebody summarize please? we are using portals which came with 4.11 and anything addition to that in .ini file or not? everbody takes different approaches i guess.. i just dont want to overkill and weeks of rendering lol.. what is the "enough" settings for quality now?

                Comment


                  Ini is for experienced users who want maximum control on every settings or access settings that are not in the editor interface. it's not mandatory at all to mess with it.

                  Comment


                    Really interesting posts here. What about vxgi? Anyone tried it out? I have been considering it for archviz but my laptop has a Geoforce GTX 780m. Will vxgi still be compatible with the card or there will be issues with it or some features are missing? I don't mind low frame rates since I can render it out as image sequences rather than record it. Or is there an advantage to using Lightmass over realtime GI?

                    Comment


                      Originally posted by melvixo View Post
                      Really interesting posts here. What about vxgi? Anyone tried it out? I have been considering it for archviz but my laptop has a Geoforce GTX 780m. Will vxgi still be compatible with the card or there will be issues with it or some features are missing? I don't mind low frame rates since I can render it out as image sequences rather than record it. Or is there an advantage to using Lightmass over realtime GI?
                      Yes there are many advantages to lightmass.

                      Looks much better and alot less taxing on your system.

                      Comment


                        IndirectIrradiancePhotonDensity
                        IndirectPhotonSearchDistance

                        4.12 change this setting all scene distorted.help me please

                        Comment


                          Can someone please tell me how to or where to find lightmass portals? I thought maybe under volumes, but I do not see anything there.

                          I am using 4.12.1

                          Thanks

                          EDIT: I found it.
                          Last edited by asmithey; 06-07-2016, 07:26 PM.

                          www.aaronsmithey.com

                          Comment


                            [MENTION=28094]asmithey[/MENTION] You can find the Lightmass portal by searching at "Search Classes" or rolling down in "All Classes" category.

                            Somebody can help me... my lightmass portal does not make any difference at the scene.

                            Lightmass settings:

                            Static Lighting Leve Scale: 0.3
                            Bounces: 50
                            Indirect Quality: 3.0
                            Smoothness: 2.0

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                            Last edited by Carlos David; 06-09-2016, 10:45 AM.

                            Comment


                              Originally posted by Carlos David View Post
                              Somebody can help me... my lightmass portal does not make any difference at the scene.
                              Have you tried turning up Global Illumination in your Post Process Volume? I'm not sure if it is the standard way to brighten things up for everyone but it seems to work wonders for me.
                              James Gallagher

                              Architectural Technologist, P3Architecture Partnership

                              Comment


                                Originally posted by Carlos David View Post
                                [MENTION=28094]asmithey[/MENTION] You can find the Lightmass portal by searching at "Search Classes" or rolling down in "All Classes" category.

                                Somebody can help me... my lightmass portal does not make any difference at the scene.
                                Try using the exposure.

                                Lighting will always be correct if you follow the physically based model. Your portal might also be a little wide. In my experience, I always try to make mine fit exactly inside a hole (yours has a bit of an overlap with the wall).
                                Last edited by JordanN; 06-10-2016, 01:44 PM.

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