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SphericalHarmonicsL2

struct in UnityEngine.Rendering

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Description

Spherical harmonics up to the second order (3 bands, 9 coefficients).

Spherical harmonics (SH) represent a function or signal over directions, and are commonly used in computer graphics to efficiently evaluate smooth lighting. Unity uses them for LightProbes and environment lighting.

L2 spherical harmonics is composed of 9 coefficients for each color channel.

See Also: RenderSettings.ambientMode, RenderSettings.ambientProbe, LightProbes.

Variables

this[int,int]Access individual SH coefficients.

Public Functions

AddAmbientLightAdd ambient lighting to probe data.
AddDirectionalLightAdd directional light to probe data.
ClearClears SH probe to zero.

Operators

operator !=Returns true if SH probes are different.
operator *Scales SH by a given factor.
operator +Adds two SH probes.
operator ==Returns true if SH probes are equal.