Ray-Triangle Intersection I

• Check if point is inside triangle algebraically

P

P0

N1

T1

T2

T3

V2

V1

For each side of triangle

V1 = T1 - P

V2 = T2 - P

N1 = V2 x V1

Normalize N1

d1 = -P0 • N1

if ((P • N1 + d1 ) < 0)

return FALSE;

end

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