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26 lines
724 B
C++
26 lines
724 B
C++
#include "tempest/quaternion/C4Quaternion.hpp"
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C4Quaternion C4Quaternion::Nlerp(float ratio, const C4Quaternion& q1, const C4Quaternion& q2) {
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float x = (q2.x - q1.x) * ratio + q1.x;
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float y = (q2.y - q1.y) * ratio + q1.y;
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float z = (q2.z - q1.z) * ratio + q1.z;
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float w = (q2.w - q1.w) * ratio + q1.w;
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float m = x * x + y * y + z * z + w * w;
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float v9 = ((m - 0.95906597) * -0.532516) + 1.021435;
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if (m <= 0.91521198) {
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v9 *= (((v9 * v9 * m) - 0.95906597) * -0.532516) + 1.021435;
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if (m <= 0.6521197) {
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v9 *= (((v9 * v9 * m) - 0.95906597) * -0.532516) + 1.021435;
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}
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}
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x *= v9;
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y *= v9;
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z *= v9;
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w *= v9;
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return { x, y, z, w };
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}
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