Oh yes - let me tell you about a few. I don't know of a comprehensive listing, but we could start one.

Suppose you're in Photoshop levels "Levels". Suppose you move the middle slider gadget - this is Poser Math_Function:Bias. Color_Math:Bias would work on 3-channel colors.

Contrast is Poser Math_Function Gain. Color_Math:Gain would work on 3-channel colors.

HSV (Hue Saturation Value) is a node in Poser and a dialog in Photoshop. Very useful for shifting colors, raising or lowering saturation, and raising or lowering brightness.

Then there are all those two-image blending modes like "screen", "multiply", "darken", 'lighten", etc. There are simple one or two node setups that do almost all of those.

One extremely useful thing we can't do well in Poser is blur or sharpen. Too bad.

Are there any specific effects you want to know about? I know how to do almost all of them with nodes.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)