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Do we need ghost light?

JamesJames Posts: 1,145
in Daz Studio Discussion

Do we need ghost light?

In what kind of situation ghost light is better than already existing lights?

Comments

  • Richard HaseltineRichard Haseltine Posts: 108,091

    Ghost lights, as originally conceived, alow the addition of light without any visible source and without showing in reflections - it's a way to get extra light into a scene to speed convergence without throwing out the main shadows and highlights.

  • JamesJames Posts: 1,145
    edited June 2022

    No wonder my render time add up significantly after I add a light.
    But I need it to get the reflection on the eye.

    What does convergence means?
    All I know it's on the render settings, usually set to 95 or 98%

    Post edited by James on
  • Richard HaseltineRichard Haseltine Posts: 108,091

    Convergence is a measure of how much each pixel varies between iterations - as it is hit by more light paths from more different directions it should narrow in on its final value; Iray has a threshold, determined by Render Quality, to decide when a pixel is near-enough final and when X% of the pixels have crossed that threshold it stops (by default).

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