This is a great tool overall, but it has one downside. The VRaySky map, while placed in the environment slot, will generate a blue ambient lighting, trying to mimic the illumination from a real sky dome. In practice, adjusting the VRaySky map Saturation value with ColorCorrect is the most flexible way to manage VRaySky illumination. But as a way out of this situation is the ColorCorrect using. Unfortunately, a combination of ozone and turbidity parameters only, does not always provide the desired result. But sometimes the color saturation is too high. In most cases a standard settings of the map is quite sufficient. The scene illumination with VRaySun + VRaySky is actually the most common approach to V-Ray users. While working with V-ray renderer it's often arises the need of using a V-Ray specific map - VRaySky to illuminate 3d scenes. Thus, wrapping a VRaySky with a suitable color-correction map are still the better approach. However, applying a color filter over existing VRaySky color, especially since you usually only need to reduce that color saturation, is pretty counterintuitive. This actually allows you to filter the VRaySky hue by the color specified in the field. In addition, it is very important to note that in newer versions of V-Ray, the VRaySky has a new parameter called the Sun filter color. Please, see the 2020 Update (read first) of the " ColorCorrect Texture Plugin for 3ds Max" article for more information. In 2020, ColorCorrect is no longer the exclusive solution to the problem of color correction. It relies on ColorCorrect plugin for 3ds Max. This mini-article was originally written in 2009.
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