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These can be found under the "Tonemapping" section of the Camera panel in Maxwell Render. Please note that they do not appear in the camera panel in the Maxwell Studio interface.
White point
It lets you adjust the white point of the render, meaning the yellow to blue range (lower K values make the render bluer or "cooler", higher K values make it more yellow or "warmer").
Tint
Controls the green to magenta range. Emitters in the real world not only emit bluer or more yellowish light, but can also emit a more greenish light, especially fluorescents. For this reason a complete white balancing tool also needs to control the green to magenta color cast in a photo. Negative values add a green tint, positive values add a magenta tint.
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From left to right: Default white balance (6500K), colder render by setting the white point to 3000K, warmer render by setting the white point to 10 000K. Click to enlarge.
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