Tangent Space

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#gamedev #gamedevelopment #programming

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Super helpful video for understanding tangent space, thanks!

FrostyFeet
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Fantastic summary... Just what I was looking for. In the meantime, in the background, somebody's putting a roof on your house upside down, because they got their normals flipped.😅

rbettsx
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Which normal should I choose when I calculate the TBN matrix? One of the vertex normal of current triangle, or the normal calculated by cross producting two edges of current triangle?

zetay
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How is Dir1 and Dir2 obtained? I mean, if Dir1 = pos2-pos1, Dir2 = pos3-pos1, how we know which vertices to choose as pos1, pos2, pos3?

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