Regarding my attempt at the top of page 4 of this thread to use quinlor's 2008 idea to get different images on the front and back of the leaf. As bagginsbill said "The Translucence channel has only one job - to convey BACK lighting to the front. It is not responsible for conveying FRONT lighting to the back. As we can see this is already performed by the completely ordinary lighting of the built-in diffuse node (or any diffuse node).". So plugging an additional copy of quinlor's nodes into the diffuse node was totally pointless. All I should plug into the diffuse node is the texture map that I want the translucence channel to use when it's conveying back lighting to the front - it's a moot point whether this should be the leaf back image, the leaf front image, or a blend of both.

Also, While rooting around in the forum I came across another translucent leaf thread and noted willyb53's suggestion to use fastscatter with translucence, so I gave it a whirl. Here's the adjusted shader network:

And here's what I got:

So with a Diffuse node plugged into translucence (as at the top of page 4) the back-lit back-viewed leaf renders black, but with a FastScatter node plugged into translucence I see the leaf texture and the correct shadows.

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The 3Dcheapskate* 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.

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