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Another point I forgot to mention: you may have noticed when in Poseray
or when rendering in POV-Ray, that the Martian landscape does not have
the usual left-handed orientation (X-right, Y-up, Z- screenwards) but a
right-handed one (X-right, Y-screenwards, Z-up). You can easily remedy
that in Poseray. After you recalculated the normals in the Groups
folder, first press the 'Flip Y-Z axis' button, then in the Transform
section, set Scale z to -1 and press the 'Transform' button. Finally,
export to POV-Ray.
--
Thomas
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