Quote:
Originally Posted by Foo'bar
I thought about more like that:

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I guess the real issue the engine has is that it doesn't contrast the shadow enough. The sunny side is perfectly good I believe (the bark) but yeah, the shadowy side should be a tad darker. The picture above is way too contrasted though. The whites drop off sharp because of very strong over saturation. It's a bad picture that elimitates about 15-25% of the real spectrum.
See this? This is a representation of the spectrum of the picture you posted: