thanks, yes I used the mtl_hdr not too wisely, the truth is somewhere between the 2 scenarios, but playing with lights and materials to get proper contrast is not so easy (until I integrate it into my editor where it is in real time), the wind shader also decreases leaf contrasts a bit, and setting the leaf normals a bit differently also affects leaf contrasts... shadows are only placeholders, I'll create them from tree model view images (like in my fake tree shadow system for Unity free - sorry for mentioning the enemy )
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