UI Line Renderer

📏 UILineRenderer Class

A customizable UI component for rendering smooth, gradient-colored lines with variable width, rounded corners, and end caps.

Namespace: Esper.SkillWeb.UI.UGUI Inherits from: MaskableGraphic Type: class

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📦 Fields

Access	Field	Type	Description
private	points	List<Vector2>	List of points defining the line path.
private	lineWidth	float	Width of the line in units.
private	widthCurve	AnimationCurve	Controls width variation along the line.
private	colorGradient	Gradient	Controls color variation along the line.
private	cornerVertices	int	Number of vertices for smooth corners.
private	endCapVertices	int	Number of vertices for rounded end caps.
private	loop	bool	Whether the line forms a closed loop.
public	cachedMaterial	Material	Cached material used for rendering.

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🔍 Properties

Access	Property	Type	Description
public override	material	Material	Gets or sets the rendering material.
public override	mainTexture	Texture	Gets the main texture from the current material.
public override	materialForRendering	Material	Returns a modified rendering material.
public	LineWidth	float	Gets or sets the line width.
public	WidthCurve	AnimationCurve	Gets or sets the width curve.
public	ColorGradient	Gradient	Gets or sets the color gradient.
public	CornerVertices	int	Gets or sets corner vertex count.
public	EndCapVertices	int	Gets or sets end cap vertex count.
public	Loop	bool	Gets or sets loop mode.
public	positionCount	int	Gets or sets number of line points.

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🔧 Methods

Access	Method	Returns	Description
public	GetCurrentMaterial()	Material	Returns the current rendering material.
protected override	OnPopulateMesh(VertexHelper vh)	void	Populates mesh with line geometry.
private	GenerateLineMesh(VertexHelper vh)	void	Builds full line mesh including segments and caps.
private	GenerateLineSegment(VertexHelper vh, Vector2 start, Vector2 end, int segmentIndex, int totalSegments)	void	Adds a quad for a line segment.
private	GenerateEndCap(VertexHelper vh, Vector2 center, Vector2 adjacent, bool isStart)	void	Adds a rounded end cap.
private	CreateVertex(Vector2 position, Color color, Vector2 uv)	UIVertex	Creates a vertex with position, color, and UV.
public	SetPosition(int index, Vector2 position)	void	Sets a point at the given index.
public	GetPosition(int index)	Vector2	Gets a point at the given index.
public	SetPositions(Vector2[] positions)	void	Sets all points from an array.
public	SetPositions(List<Vector2> positions)	void	Sets all points from a list.
public	GetPositions(Vector2[] positions)	int	Copies points into an array.
public	AddPosition(Vector2 position)	void	Adds a new point to the line.
public	RemovePosition(int index)	void	Removes a point at the given index.
public	ClearPositions()	void	Removes all points.
public	SetPosition3D(int index, Vector3 position)	void	Sets a point using a 3D vector.
public	SetPositions3D(Vector3[] positions)	void	Sets all points from a 3D array.
protected override (Editor only)	OnValidate()	void	Validates properties and forces material update.