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Why do the new, "Morphing Gemstones" not respond at all to a Daz spotlight?

RexRedRexRed Posts: 1,323
in Technical Help (nuts n bolts)

Why do the new, "Morphing Gemstones" not respond at all to a Daz spotlight? 

Morphing Gems, Shaders and IMM Brushes

https://www.daz3d.com/morphing-gems-shaders-and-imm-brushes

They respond to ambient light from a HDRI but when set to scene only they remain black when other light sources are used.

Thanks in advance for any help on this.

Comments

  • felisfelis Posts: 4,318

    It does respond to light. But in order to light a gem, you need several lightsources, or if only one some surrounding that has a high gloss (reflects).

    A gem is essentially a multifacetet reflector, so if no light  no reflection.

  • crosswindcrosswind Posts: 6,952
    edited September 22

    Without a Dome HDRI, you at least need an interior e.g a sphere or a cube primitive for bouncing the light, as well as one spotlight with big values set in Spread Angle, Height and Lumen to bring good refraction effect to the gems ~~

    It's a sort of "simulating" a Dome lighting ~

     

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    Post edited by crosswind on
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