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  • Light bleed

    Hello,

    I have rendered an interior of my somewhat fictive kitchen, in the apartment I live in. I am quite satisfied with the results so far. Although I’ve came across a strange white lightning in the ceiling on my render. Have searched the scene for hidden light planes but haven’t found any, have also overlooked the walls in the apartment and they shouldn’t be able leak any light from the sun or something like that.

    The only light source’s that is placed in the scene is; the V-ray sun and two light planes in the two windows. (Have followed the webinar/tutorial for indoor lightning).

    Does anyone have any idea where this white lightning comes from, because in real life it should be a shadow on that area.

    Have played around with the settings a bit and I think I have narrowed it down to the Light Cache, although I don’t really understand why it is happening. Have tested with Irradiance Map only and then the lightning is gone but the rendering time is far longer.

    Have also tested to raise the settings to;
    Much larger image
    Irridance map: Basic parameters min -3 max 0
    Light cache subdivs: 1200

    And the only thing I got was a smoother white lightning

    Would be really happy if someone pointed in the right direction .


    //Best regards
    Arre

    RENDER


    SETTINGS




  • #2
    Re: Light bleed

    If you're using Rhino (this is the Rhino forum) try joining the wall surface to the ceiling surface, that should ensure there are no gaps in the rendermesh between the two.

    That should sort your problem.

    I don't think this will have anything to do with Light Cache(?).

    Other than that i would have tried the same as you Irradience mapping min rate : -3 max rate: 0

    Hope this helps

    Stu
    Stuart Williamson | Industrial Designer

    Comment


    • #3
      Re: Light bleed

      Originally posted by **dubs**
      If you're using Rhino (this is the Rhino forum) try joining the wall surface to the ceiling surface, that should ensure there are no gaps in the rendermesh between the two.

      That should sort your problem.

      I don't think this will have anything to do with Light Cache(?).

      Other than that i would have tried the same as you Irradience mapping min rate : -3 max rate: 0

      Hope this helps

      Stu
      Thanks for a fast reply!

      Since the walls are blue and the roof is white... i tried to thicken the roof abit so instead of a surface it became a good old solid... and it worked!

      Thanks again!

      //Arre

      Comment


      • #4
        Re: Light bleed

        Nice, glad to help
        Stuart Williamson | Industrial Designer

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        • #5
          Re: Light bleed

          in the "irradiance maps" rollup... active "check sample visibility".

          Comment


          • #6
            Re: Light bleed

            Originally posted by kolo
            in the "irradiance maps" rollup... active "check sample visibility".
            "check sample visibility = will get rid of light leaks" aha! , does anyone know if this setting is a time killer or could I have it on all the time?

            Thanks btw!

            Comment


            • #7
              Re: Light bleed

              all the time..

              Comment


              • #8
                Re: Light bleed

                oh nice, thanks for the info!

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