Poser materials do work seamlessly across platforms, if by "platforms" you mean Windows or MacOS.

But I suspect you mean that materials should be portable between (for example) Poser and Cinema4D, or 3DS Max, or Blender. That's not going to happen any time soon, if ever, because for each render engine there's a different way of defining materials.

It's true that materials and shaders attempt to describe how light should behave in a more-or-less accurate fashion and in accordance with the same laws of physics, and that the underlying mathematics may well be identical, but the way this is implemented varies enormously between render engines.

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Windows 10 x64 Pro - Intel Xeon E5450 @ 3.00GHz (x2)

PoserPro 11 - Units: Metres

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