Stopping shadow-less lights from shining through everything?

SnowSultanSnowSultan Posts: 3,643
edited December 1969 in The Commons

Is there any way to turn off shadows for Studio lights and have them *not* shine through objects? Even the Age of Armour Advanced lights shine through objects if shadows are not turned on. I love his lights, but the Ambient one can be very troublesome when you're trying to illuminate a hallway and even with falloff set, light still comes through the wall and into an adjacent room.

Thanks in advance.

Comments

  • Richard HaseltineRichard Haseltine Posts: 102,759
    edited December 1969

    Turning shadows off tells the light to ignore obstructions. You could try using negative lights to tame the brightness in areas that should be unlit.

  • Eustace ScrubbEustace Scrubb Posts: 2,703
    edited December 1969

    Instead of turning off shadows to the lights, try turning off shadow casting for those meshes you don't want shadows from.

  • Herald of FireHerald of Fire Posts: 3,504
    edited December 1969

    Curious, why are you using lights without a shadow if you don't want it to pass through objects? If you simply don't want a visible shadow, you can turn the shadow softness up to effectively remove them from the scene.

    If a light stopped when it hit a wall it would be effectively casting a shadow anyway.

  • SnowSultanSnowSultan Posts: 3,643
    edited December 1969

    So I guess the answer is no, hehe. Thanks very much though.

    @Herald: Basically I was having problems in two situations trying to illuminate a hallway in the background of a main interior room. I didn't want shadows cast because there was an object edge that would have cast a large shadow and canceled out most of the light. Turning shadows off though caused the light to bleed through the back wall and into the main room.

    The Advanced Ambient light is causing the same headaches; I tried using that instead because it doesn't cast hard shadows (just AO), but it goes right through walls too.

    Would have just liked an additional option to have light stop when it reaches a surface whether shadows are on or not, that's all. There's always just adding the light in Photoshop anyway. :) Thanks again.

  • LeatherGryphonLeatherGryphon Posts: 11,672
    edited December 2014

    (*sigh*) Programmers change the laws of physics and yet some people are never happy. Programmers turn off gravity, They let objects pass through each other like ghosts, they make light jump through hoops like trained dogs and still people ask for more. (*sigh*) "give 'em an inch..." 8-s Personally, I'd be satisfied with a good "Make Art" button.

    Post edited by LeatherGryphon on
  • SickleYieldSickleYield Posts: 7,644
    edited December 1969

    So I guess the answer is no, hehe. Thanks very much though.

    @Herald: Basically I was having problems in two situations trying to illuminate a hallway in the background of a main interior room. I didn't want shadows cast because there was an object edge that would have cast a large shadow and canceled out most of the light. Turning shadows off though caused the light to bleed through the back wall and into the main room.

    The Advanced Ambient light is causing the same headaches; I tried using that instead because it doesn't cast hard shadows (just AO), but it goes right through walls too.

    Would have just liked an additional option to have light stop when it reaches a surface whether shadows are on or not, that's all. There's always just adding the light in Photoshop anyway. :) Thanks again.

    Flagging should work for this on the AoA lights, shouldn't it? Flag it to only illuminate the materials of that back area?

  • barbultbarbult Posts: 24,850
    edited December 1969

    Flagging should work, but flagging is not working correctly in DS 4.7. Illuminate Only acts like Do Not Illuminate and vice versa. Bug reports have been submitted.

  • DAZ_SpookyDAZ_Spooky Posts: 3,100
    edited December 2014

    So I guess the answer is no, hehe. Thanks very much though.

    @Herald: Basically I was having problems in two situations trying to illuminate a hallway in the background of a main interior room. I didn't want shadows cast because there was an object edge that would have cast a large shadow and canceled out most of the light. Turning shadows off though caused the light to bleed through the back wall and into the main room.

    The Advanced Ambient light is causing the same headaches; I tried using that instead because it doesn't cast hard shadows (just AO), but it goes right through walls too.

    Would have just liked an additional option to have light stop when it reaches a surface whether shadows are on or not, that's all. There's always just adding the light in Photoshop anyway. :) Thanks again.

    Not exactly. There is an alternative that handles this in DS.

    Age of Armor's Advanced lights, for example Advanced Distant light, you can tag surfaces to receive or not receive light from his lights.

    (I forget exactly how to set it up, but his lights have great documentation on how to do it.)

    Oops, that is what I get for not pushing post before walking into a meeting. LOL.

    Post edited by DAZ_Spooky on
  • SnowSultanSnowSultan Posts: 3,643
    edited December 1969

    Yes, I know about the flagging options (didn't know about the bug though, hmm). That can work of course, but not if multiple walls or other materials share the same surface. I know you could then use the Geometry Editor to separate the specific polygons of the wall that you need to flag...but yeah, it's far easier to just postwork it.


    (*sigh*) Programmers change the laws of physics and yet some people are never happy. Programmers turn off gravity, They let objects pass through each other like ghosts, they make light jump through hoops like trained dogs and still people ask for more. (*sigh*) “give ‘em an inch…”


    They're also not artists and think in completely different ways.

  • SickleYieldSickleYield Posts: 7,644
    edited December 1969

    (*sigh*) Programmers change the laws of physics and yet some people are never happy. Programmers turn off gravity, They let objects pass through each other like ghosts, they make light jump through hoops like trained dogs and still people ask for more. (*sigh*) "give 'em an inch..." 8-s Personally, I'd be satisfied with a good "Make Art" button.

    Turning gravity OFF ain't the trick. ;)

  • LeatherGryphonLeatherGryphon Posts: 11,672
    edited December 2014

    (*sigh*) Programmers change the laws of physics and yet some people are never happy. Programmers turn off gravity, They let objects pass through each other like ghosts, they make light jump through hoops like trained dogs and still people ask for more. (*sigh*) "give 'em an inch..." 8-s Personally, I'd be satisfied with a good "Make Art" button.

    Turning gravity OFF ain't the trick. ;)

    Ay! There's the rub! If it weren't for all those users, computer engineering would be easy. I knew back in the 70's that letting commoners get their hands on computers would be a mistake. They'd want to play and do silly things with them. Now, I'm just sitting back and watching it happen, while the house of cards gets shakier all the time, and saying "back in my day..." and "I told you so...". 8-Q

    And yeah, I agree about the gravity thing. Flying is easy, the crux of the problem is survivable landings.

    Post edited by LeatherGryphon on
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