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Document negative saturation (#15062)
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@ -8540,8 +8540,17 @@ child will follow movement and rotation of that bone.
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* Passing no arguments resets lighting to its default values.
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* Passing no arguments resets lighting to its default values.
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* `light_definition` is a table with the following optional fields:
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* `light_definition` is a table with the following optional fields:
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* `saturation` sets the saturation (vividness; default: `1.0`).
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* `saturation` sets the saturation (vividness; default: `1.0`).
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* values > 1 increase the saturation
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* It is applied according to the function `result = b*(1-s) + c*s`, where:
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* values in [0,1] decrease the saturation
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* `c` is the original color
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* `b` is the greyscale version of the color with the same luma
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* `s` is the saturation set here
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* The resulting color always has the same luma (perceived brightness) as the original.
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* This means that:
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* values > 1 oversaturate
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* values < 1 down to 0 desaturate, 0 being entirely greyscale
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* values < 0 cause an effect similar to inversion,
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but keeping original luma and being symmetrical in terms of saturation
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(eg. -1 and 1 is the same saturation and luma, but different hues)
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* `shadows` is a table that controls ambient shadows
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* `shadows` is a table that controls ambient shadows
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* `intensity` sets the intensity of the shadows from 0 (no shadows, default) to 1 (blackness)
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* `intensity` sets the intensity of the shadows from 0 (no shadows, default) to 1 (blackness)
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* This value has no effect on clients who have the "Dynamic Shadows" shader disabled.
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* This value has no effect on clients who have the "Dynamic Shadows" shader disabled.
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