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This rendered for 3 hours on a dual xeon 2.8 HT w/1 gb ram. The black panel in the shower is supposed to be glass. Don't know why it never "turned". The image looks kinda fuzzy to me. Also, I haven't been paying much attention to Tone Mapping since most of the options are gone. I guess lowering the Burn value reduces contrast? I kind of liked having the film gamma and contrast controls before.

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I keep meaning to ask, is the Rhino plug-in compatible with 1.132?

Frances,

The "burnt" value is a logarithmic exposure control.

This parameter applies a potential function to the irradiance value that is coming to the image pixel. With a value equal to one this parameter creates a linear response to the energy, and produces a very fast saturation in the pixel color. When you decrease this parameter you obtain a very fast increase in the dynamic range and avoid a fast saturation of the pixels. This effect also produces a reduction of the contrast in the output image.