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> Unreal Engine API Reference > Runtime > Chaos > Chaos > TSphereSpecializeSamplingHelper< T, 3 > > ComputeGoldenSpiralPoints > TSphereSpecializeSamplingHelper< T, 3 >::ComputeGoldenSpiralPoints

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TSphereSpecializeSamplingHelper< T, 3 >::ComputeGoldenSpiralPoints

Use the golden spiral method to evenly distribute points on a sphere.

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References

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

Syntax

static void ComputeGoldenSpiralPoints
(
    TArray< TVec3< T >> & Points,
    const TVec3< T > & Center,
    const T Radius,
    const int32 NumPoints,
    const bool BottomHalf,
    const bool TopHalf,
    const int32 SpiralSeed
)

Remarks

Use the golden spiral method to evenly distribute points on a sphere.

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 sphere, ending at the top. Contiguous entries in `Points_ generally will not be spatially adjacent.

Points_ to append to. Center is the center of the sphere. `Radius is the radius of the sphere. NumPoints_ is the number of points to generate. BottomHalf causes the bottom half of the sphere to be generated, starting at `Center - (0, 0, Radius_). TopHalf causes the top half of the sphere to be generated, starting at `Center. 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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