HW3D Dawn cornea not rendering

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HW3D Dawn cornea not rendering

Postby elenacalderas » Tue Aug 13, 2013 4:42 pm

elenacalderas Tue Aug 13, 2013 4:42 pm
The material is there in the materials tab, but a deep channel kernel render reveals that the geometry is not visible to Octane. The cornea should cover the whole eye, but no matter what material I assign to it, it remains invisible. Anyone else have this problem, and how do I fix it?
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elenacalderas
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Re: HW3D Dawn cornea not rendering

Postby face_off » Tue Aug 13, 2013 10:27 pm

face_off Tue Aug 13, 2013 10:27 pm
Perhaps it has been morphed inside the eyeball, so is not visible? Use the material picker to pick the material in the middle of the eyeball - it will pick the material belonging to the polygon you select. If it's not the cornea material, then the cornea polygons are behind whatever material got selected.
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Re: HW3D Dawn cornea not rendering

Postby elenacalderas » Wed Aug 14, 2013 8:24 pm

elenacalderas Wed Aug 14, 2013 8:24 pm
That's the strange thing - using the material picker all over the eye will select the cornea material each time, but when I edit it, there is no change in the render.

Using the deep channel kernel and wireframe rendering reveals that the cornea material is not there for Octane. The iris and the pupil is exposed. If I do a wireframe preview in Poser, the whole eye is covered by the cornea, as it should be.

Still, the material picker will select the cornea, also as it should be. But the cornea doesn't render, even if I turn it into a black diffuse material. I can still see the underlying geometry in the render then.

I'm so confused. :shock:
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Re: HW3D Dawn cornea not rendering

Postby elenacalderas » Wed Aug 14, 2013 8:40 pm

elenacalderas Wed Aug 14, 2013 8:40 pm
Replying to myself, I think I solved it. I checked "normals forward" in the Poser materials, and hey presto, the cornea renders. Apparently, Dawn's cornea normals are reversed. Sorry to bother you, Paul. It's not an Octane fault, it's a geometry fault.
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Re: HW3D Dawn cornea not rendering

Postby face_off » Wed Aug 14, 2013 9:31 pm

face_off Wed Aug 14, 2013 9:31 pm
Good to know - thank you. I will add this to the manual FAQ.

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