Loading...
> >

Light falloff for pointlights?

MalandarMalandar Posts: 776
in The Commons

I am having a bit of a problem, I need to get some point lights set up with falloff distances, and I can't get them to show up with the option to set that up, I have tried both types of point lights and neither has the settings which is nuts because I had one with falloff settings on it earlier in this scene, but I deleted it, and now  nothing... Any ideas what i am doing wrong here? This is getting annoying as hell.

Comments

  • SimonJMSimonJM Posts: 6,067

    Are you using 3Delight or Iray?  For 3Delight linera point lights have fall off, 'normal' point lights do not.  With Iray all lights have fall off as they obey physical concepts.

  • Richard HaseltineRichard Haseltine Posts: 108,072

    In 3Delight Point Lights have fixed inverse-square fall-off, as all points do in Iray. Linear Point Lights in 3Delight offer controllable fall-off.

  • MalandarMalandar Posts: 776

    Ah that's why. Thanks .

  • SPadhi89SPadhi89 Posts: 170
    Richard Haseltine said:

    In 3Delight Point Lights have fixed inverse-square fall-off, as all points do in Iray. Linear Point Lights in 3Delight offer controllable fall-off.

    means that linear pointlight and point lights are useless for Iray? if thats true, then IRAY SUCKS BIG TIME

  • AllenArtAllenArt Posts: 7,175
    edited November 2018
    spd0089_3293e62e1f said:
    Richard Haseltine said:

    In 3Delight Point Lights have fixed inverse-square fall-off, as all points do in Iray. Linear Point Lights in 3Delight offer controllable fall-off.

    means that linear pointlight and point lights are useless for Iray? if thats true, then IRAY SUCKS BIG TIME

    No, it just means that you don't need to set falloff in Iray because the lights are physically based lights. In reality you cannot set the falloff of your lightbulbs and you can't in Iray either because the math is done internally, as it is in all physically based render engines.

    Laurie

    Post edited by AllenArt on
  • Richard HaseltineRichard Haseltine Posts: 108,072
    spd0089_3293e62e1f said:
    Richard Haseltine said:

    In 3Delight Point Lights have fixed inverse-square fall-off, as all points do in Iray. Linear Point Lights in 3Delight offer controllable fall-off.

    means that linear pointlight and point lights are useless for Iray? if thats true, then IRAY SUCKS BIG TIME

    Point lights are not useless, but you will need to adjust the Tone Mapping settings to get a decent balance.

Sign In or Register to comment.