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Castle Dungeon Portals do nothing Iray

krickerdkrickerd Posts: 188
in Technical Help (nuts n bolts)

For those who have purchased this, are the portals supposed to act as light sources?  How?  They do nothing.  The flames act as a light source.  The portals do not.  And I'm not even talking about the light rays in the promo images.  I'm talking about emitting light AT ALL.

Comments

  • Richard HaseltineRichard Haseltine Posts: 102,931

    This set http://www.daz3d.com/castle-dungeon ? I don't see any light-emitters, other than the torches, in the promo images - the god-rays are coming from external light shinging in though openings.

  • krickerdkrickerd Posts: 188

    Do you have the set?  There are emitting surfaces called "Portals" that are emitters.  No matter how high I set them, no light enters the inside of the set.  It doesn't matter if I turn on 2 sided light setting.  It would be nice to contact the set designers directly.

  • glaseyeglaseye Posts: 1,312
    edited February 2017

    Portals are not light emitters, they are aids to help speed up rendering interiors with exterior lightsources, although it may not always be helpful..

    http://blog.irayrender.com/post/12598717491/daylight-portals-in-iray-20-performance-issues

    So if those 'portals' are setup as light emitters, then they are just that... lightsources... I don't have this set, so I can't check. I don't see a mention of options for 'godrays' on the product page, so not sure of settings are included for that. Basically it would require some 'atmopsheric' settings to get that done. (There are some  tricks to emulate that, as I am experimenting with that to get those particles visible in light beams....)

    some info

    http://sickleyield.deviantart.com/journal/Tutorial-Creating-Dust-And-Atmosphere-in-Iray-522291773

     

    Post edited by glaseye on
  • krickerdkrickerd Posts: 188

    So I would better off creating planes, placing them right next to the windows, and making them emissive?  At least I could get some "exterior lighting" to shine through.  Thanks for the link, though she's not exactly correct saying there is no way to create godrays in 3DL.  Omnifreaker's uber volume effects, which come with DS will do that.

  • Richard HaseltineRichard Haseltine Posts: 102,931

    Planes, spotlights, or a distant light are all options.

  • glaseyeglaseye Posts: 1,312

    AFAIK, Omnifreaker's uber volume is for 3DL, not Iray. There are product(s) in the store to create the ray effects, but I don't have any. I just try my luck with the method as described in sickleyield's tutorial.....

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