Grass Setting

VFX Property

Grass VFX

Property	Type	Description
grassVfx	VisualEffect	The Visual Effect component that renders the grass. All other settings are pushed to this VFX via ApplyGrassSetting().

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Initial Settings

Initial Settings only run once when the grass instantiate. The other setting could be modify at realtime

Property	Type	Description
maxGrassCount	int	Maximum number of grass instances (0–1,000,000).
applyGroundNormal	bool	Whether to align grass to ground normals.
grassMeshLod0	Mesh	Mesh used for LOD 0.
grassMeshLod1	Mesh	Mesh used for LOD 1.
randomSizeByNoise	Vector2	Min/max scale multiplier driven by noise (X = min, Y = max).
sizeNoiseFrequency	float	Frequency of the noise used for size variation.

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Mesh Settings

Property	Type	Description
grassTexture	Texture2D	Texture applied to the grass mesh.
individualScale	Vector3	Base scale per blade (X, Y, Z).
addRandomScale	Vector3	Random scale offset added per blade (X, Y, Z).

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Color Settings

Grass color are blended with top and bottom color

Top Color

Property	Type	Description
topColorOption	Enums	GroundColor — from ground; Gradient — from top gradient; Noise — from top noise.
topGradient	Gradient	Gradient used when topColorOption == Gradient. Sampled vertically (256×256 texture).
topNoiseFrequency	float	Noise frequency for top color when option is Noise.
topNoiseColor1	Color	First color for top noise blend.
topNoiseColor2	Color	Second color for top noise blend.

Bottom Color

Property	Type	Description
bottomColorOption	Enums	GroundColor — from ground; Gradient — from bottom gradient; Noise — from bottom noise.
bottomGradient	Gradient	Gradient used when bottomColorOption == Gradient. Sampled vertically (256×256).
bottomNoiseFrequency	float	Noise frequency for bottom color when option is Noise.
bottomNoiseColor1	Color	First color for bottom noise blend.
bottomNoiseColor2	Color	Second color for bottom noise blend.

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Wind Settings

Property	Type	Description
windDirection	Vector2	Wind direction (X, Z in world space).
windDensity	float	Density/turbulence of wind.
windSpeed	float	Wind animation speed.
windStrength	float	Wind bend strength (0–2).
windSmoothless	float	Wind smoothing (0–5).
windHighlightOption	Enums	Simple — default highlight; CustomColor — use windHighlightColor.
windHighlightColor	Color	Highlight color when windHighlightOption == CustomColor.
windHighlightStrength	float	Intensity of wind highlight (0–200).

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Motion Settings

Property	Type	Description
motionStrength	float	General motion/bend strength for the grass.

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Enums

• TopColorOption / BottomColorOption: GroundColor (0), Gradient (1), Noise (2).

• WindHighlightOption: Simple (0), CustomColor (1).

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VFX Property Names (Reference)

These names are passed to grassVfx.Set*() and must match the VFX Graph exposed properties:

• Initial: MaxGrassCount, ApplyGroundNormal, MeshLod0, MeshLod1, RandomSizeByNoise, SizeNoiseFrequency

• Mesh: IndividualScale, AddRandomScale, GrassTexture

• Top color: TopColorOption, TopGradientTexture, TopNoiseFrequency, TopNoiseColor1, TopNoiseColor2

• Bottom color: BottomColorOption, BottomGradientTexture, BottomNoiseFrequency, BottomNoiseColor1, BottomNoiseColor2

• Wind: WindDirection, WindDensity, WindSpeed, WindStrength, WindSmoothless, WindHighlightOption, WindHighlightColor, WindHighlightStrength

• Motion: MotionStrength