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vraysun intenisty - vray sphere light __ intensity?

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  • vraysun intenisty - vray sphere light __ intensity?

    ..anyone know what multiplier i would have to use on a vray sphere light to get close to the intensity of the vray sun? ...i know the intensity will change given the time of day, but i tried a multiplier of 100,000, and it didn't seem to do anything.

  • #2
    If you have an HDRI map in the vraydome light just increase its intensity
    =:-/
    Laurent

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    • #3
      actually i wanted to replace the actual physical sun with a vray sphere light for this scene. i am currently using a HDRI in the environment slot.

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      • #4
        Ok but have you an HDRI in the map slot of the vraydomelight?
        May be you have checked skylight portal?
        =:-/
        Laurent

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        • #5
          As I understand it, the VRaylight will have a much quicker decay than the VRaySun so depending on the VRaylight's distance from your object, it may have decayed too much to make a difference.
          Just a guess.
          sigpic

          Vu Nguyen
          -------------------------
          www.loftanimation.com.au

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          • #6
            You'd need to turn decay off - with it on, it'd be a nightmare trying to calculate everything taking distances into account.

            I would keep decay off, set the power to 1, render. Switch it off, switch your sun back on, render and compare. Keep knocking the vray light up till the values are pretty similar. You'll need to go pretty high though.

            It'll take you about 5 minutes if you keep the quality down and the scene stripped, far faster than trying to get your head around loads of vague numbers.

            edit: nevermind, lele just made my post useless!

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            • #7
              sun is around 385.0 float, with a yellow-greenish tint to itself, and no decay.
              Hence you need a light with 385 multiplier, no decay, and a yellow-greenish colour...

              Lele

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              • #8
                sweet. turning off decay worked like a charm.

                for this scene i am using a warmer orange sun with larger area shadow fall-off to over emphasize a setting sun.

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                • #9
                  crazy homeless guy, had you watched Lele's video tuts you would have known what the sun intensity was

                  Needless to say if you havnt watched them you really should. Some great info there!!

                  Free plug Lele

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                  • #10
                    lol DaForce, why, thankyou!

                    Lele

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                    • #11
                      ...and a link for whoever else stumbles on this thread.

                      http://www.chaosgroup.com/forum/phpB...video+tutorial

                      .

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