3dcheapskate,

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Looks like you got the world by its balls!!  Is the DS version of WorldBall for 3Delight or IRAY?
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The latest DS I have on my system is 4.6, and I've only tested it with the built-in 3Delight renderer. It might work in the nVidia one, or it might not - I've no idea.
But having said that it's nothing particularly clever - it basically consists of five things:

1. An all-encompassing spherical prop with inward facing normals and an equirectanglar (lat/long) UV mapping.The background image is applied to the ambient channel. I assume that should work in the nVidia renderer?

2. An infinite light (a straightforward DS distant light). I assume that should work in the nVidia renderer?

3. A 'faked' diffuse IBL. This was created in ShaderBuilder, which creates RSL shaders I think? I assume that should work in the nVidia renderer too? More about the 'faked' bit in yesterday's post on the worldball thread in the DS forum

4. A shadowcatcher groundplane.The shadowcatcher material is created in ShaderMixer. Not sure if that'll work in the nVidia renderer.

5. A script.This simply provides an easy way to load the worldball with any environment set, or to change the environment set if the worldball's already loaded.

P.S. As somebody mentioned a way back when I did a couple of outer space environment sets - it also doubles as SpaceBalls!  ;o)

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The 3Dcheapskate (also available in DAZ and HiveWire3D flavours) occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.