KuDeSnik33 Posted August 21, 2024 Posted August 21, 2024 Hello! I can not use Mesh::createTangents() because I need specific tangents at some verts, but my implementation of tangent quat calculation give me blacked out mesh in case it is oriented on the X axis, I've checked my tangents and yours - difference is 0.001 in w coord, all other fields are equial. Strange thing - your tangents seems to be non-normalised (length 0.9999). What is the magic here? There can I read about it? Can you give me some help to understand this?
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