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What are $envmapsaturation and Contrast?

A Question for Source Engine

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Hello everyone. I have a Question about the two Commands in a VMT File. it contains an $envmapsaturation and $envmapcontrast. What are them and What do they do with the Reflections?
Should I Use them/not for Getting the Max Realistic Effects?

any help is really appreciated <3
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  • Danial Zahid avatar
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    Hi there. Did you read this wiki?
    In the Parameters and Effects section, their purpose is explained, which I'll quote here as well for you.

    $envmapcontrast < normal>
    Controls the contrast of the reflection. 0 is natural contrast, while 1 is the full squaring of the color (i.e. color*color).
    Note: Will not work when Phong is enabled.
    Tip: Use higher contrasts to diminish relatively darker areas and increase "hot spots".
    $envmapsaturation < normal>
    Controls the colour saturation of the reflection. 0 is greyscale, while 1 is natural saturation.
    Note: Will not work when Phong is enabled.
    Bug: Works only on models.

    I had to add a space after the opening tag of normal to avoid it getting parsed.
    As for the second part of your question, I honestly have no idea about that.

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