MR sky Portal and iRay problem

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  09 September 2012
MR sky Portal and iRay problem

Iím having a problem at my scene. My scene consists of a building with an HDRI env map. Iím using portal lights at the windows. The portal light color source is env HDRI. the problem is on multiplier of portal light is not working. no matter itís 1000 or 1 itís givin same amount of light. the only way to increase the light coming from exterior to interior is to change the output rgb lvl of HDRI. but with this the outside environment is also overexposed. i tried to turn on visibility of the portal lights and the transparency color to 50% grey. but itís not working with iray. seems like itís just ignoring the existance of portal light. i checked the same scene with mental ray. portal works fine there.

help is appreciated.
  09 September 2012
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