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Hair Shader: Right Texture Orientation for Tangents?

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    Hair Shader: Right Texture Orientation for Tangents?

    Okay, so I'm a bit confused right now. I know that, for the tangents in the new hair shader to be mapped automatically, the textures need to be oriented in a certain way with the root-tip orientation always going in the same direction within the texture. However, what I'm not clear on is which direction that is supposed to be. The documentation says:

    The automatic method simply requires that that the textures for each sheet of hair be oriented such that the root is toward the top and the tips are toward the bottom.
    But in the content example, it's the other way around for most of the hair pieces (and I think in the livestream about the content example, they also said it should be root at the bottom, tip at the top) so which one is correct?

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