Here: I was adopted formula from Juergen Meier (Old C4D user) website (German): http://www.3d-meier.de/
This can be used with MathPlugin
Directory from MathPlugin must be have Read, Execute, Write permission.
Copy,paste and save this in MathCurve.ini :
[Logarithmic Spiral (JM)]
Minimum t=3
Maximum t=15
PointCount=101
Function X(t)=a * cos(t * pi)/scalar * exp(b * t)
Function Y(t)=a * sin(t * pi)/scalar * exp(b * t)
Function Z(t)=0
Variables=a= 10, b=0.4, scalar=200
Save this image as Logarithmic Spiral (JM).jpg in to MathPlugin directory / images
New, you can load this function from MathPlugin library…
