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> Unreal Engine API Reference > Runtime > Chaos > Chaos > FTaperedCylinderSpecializeSamplingHelper > ComputeGoldenSpiralPoints > FTaperedCylinderSpecializeSamplingHelper::ComputeGoldenSpiralPoints

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FTaperedCylinderSpecializeSamplingHelper::ComputeGoldenSpiralPoints

Use the golden spiral method to generate evenly spaced points on a tapered cylinder (truncated cone).

Windows

MacOS

Linux

References

Module	Chaos
Header	/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/TaperedCylinder.h
Include	#include "Chaos/TaperedCylinder.h"

Syntax

static void ComputeGoldenSpiralPoints
(
    TArray< FVec3 > & Points,
    const FVec3 & Origin,
    const FVec3 & Axis,
    const FReal Radius1,
    const FReal Radius2,
    const FReal Height,
    const int32 NumPoints,
    const bool IncludeEndCaps,
    int32 SpiralSeed
)

Remarks

Use the golden spiral method to generate evenly spaced points on a tapered cylinder (truncated cone).

The "golden" part is derived from the golden ratio; stand at the center, turn a golden ratio of whole turns, then emit a point in that direction.

Points are generated starting from the bottom of the cylinder, ending at the top. Contiguous entries in `Points_ generally will not be spatially adjacent.

Points_ to append to. Origin is the bottom-most point of the tapered cylinder. `Axis is the orientation of the tapered cylinder. Radius1_ is the first radius of the tapered cylinder. Radius2 is the second radius of the tapered cylinder. `Height is the height of the tapered cylinder. NumPoints_ is the number of points to generate. IncludeEndCaps determines whether or not points are generated on the end caps of the tapered cylinder. `SpiralSeed is the starting index for golden spiral generation. When using this method to continue a spiral started elsewhere, `SpiralSeed_ should equal the number of particles already created.

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