18 lines
575 B
Plaintext
18 lines
575 B
Plaintext
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///hermite(x0, dx0, x1, dx1, t)
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/**
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* hermite :: Real -> Real -> Real -> Real -> Real -> Real
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*
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* Cubic Hermite interpolation between `x0` and `x1` with tangents `dx0` and `dx1` given a time 0 <= `t` <= 1.
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*
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* @param x0 the value of x at t=0
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* @param dx0 the tangent of x at t=0
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* @param x1 the value of x at t=1
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* @param dx1 the tangent of x at t=1
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* @param t the interpolation parameter 0<=t<=1
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* @returns the value x(t)
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*/
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var t = argument4, t2 = t*t, t3 = t2*t;
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return (2*t3-3*t2+1)*argument0+(t3-2*t2+t)*argument1+(-2*t3+3*t2)*argument2+(t3-t2)*argument3;
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