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Thread: 2020.0.1 - Portal blocking Env reflection ?

  1. #1
    geo messy madno's Avatar
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    2020.0.1 - Portal blocking Env reflection ?

    Just installed 2020.0.1 to test portals to get faster indoor render.

    Image with portal on - reflection of ENV panorama on painting gone
    Click image for larger version. 

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    Image with portal off - reflection of ENV panorama on painting ok
    Click image for larger version. 

Name:	!_portal_off.png 
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    Can somebody confirm this?

  2. #2
    Registered User Marty3DGuru's Avatar
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    I'm also confused with the portals. Surely a portal forces and concentrates light rays through a particular area and none of this gets added to the to the total light illumination of the scene, just for light bounces. That surely shouldn't make the surrouding areas glow up and get blown up with light on the outside walls for instance if you were looking outside in through a window, NO?

    A portal should of course allow more light in through a window for instance, but surely should not make the outside scene blow up with light?
    'LW CAN IF YOU CAN BE ARSED TO TRY HARDER'

    LW2020 - LWCAD - ODTOOLS 2019 - OCTANE V4

  3. #3
    Turn off affect specular. Remember it's to be used as a funnel so to speak to bring in outside light so you may not want it to contribute to reflections.

  4. #4
    Sometimes what I do is have 2 portal lights in the window one set to affect specular and the other to affect diffuse so specular can be dialed down without turning diffuse down. Diffuse can then even be dialed up a bit if needed. Just another way of controlling it.
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  5. #5
    Registered User Marty3DGuru's Avatar
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    Quote Originally Posted by Nicolas Jordan View Post
    Sometimes what I do is have 2 portal lights in the window one set to affect specular and the other to affect diffuse so specular can be dialed down without turning diffuse down. Diffuse can then even be dialed up a bit if needed. Just another way of controlling it.
    Sounds like a good idea, thanks.
    'LW CAN IF YOU CAN BE ARSED TO TRY HARDER'

    LW2020 - LWCAD - ODTOOLS 2019 - OCTANE V4

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