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feat(quaternion): add C4Quaternion

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fallenoak 2022-12-24 17:30:47 -06:00
parent b17b7a18e6
commit 189085960f
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4 changed files with 57 additions and 0 deletions
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26
tempest/quaternion/C4Quaternion.cpp Normal file
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#include "tempest/quaternion/C4Quaternion.hpp"
C4Quaternion C4Quaternion::Nlerp(float ratio, const C4Quaternion& q1, const C4Quaternion& q2) {
float x = (q2.x - q1.x) * ratio + q1.x;
float y = (q2.y - q1.y) * ratio + q1.y;
float z = (q2.z - q1.z) * ratio + q1.z;
float w = (q2.w - q1.w) * ratio + q1.w;
float m = x * x + y * y + z * z + w * w;
float v9 = ((m - 0.95906597) * -0.532516) + 1.021435;
if (m <= 0.91521198) {
v9 *= (((v9 * v9 * m) - 0.95906597) * -0.532516) + 1.021435;
if (m <= 0.6521197) {
v9 *= (((v9 * v9 * m) - 0.95906597) * -0.532516) + 1.021435;
}
}
x *= v9;
y *= v9;
z *= v9;
w *= v9;
return { x, y, z, w };
}