Line

Name	Type	Description
色 color	Color	線の色（接続時はパラメータより優先）

Name	Type	Description
画像 output	Image	生成されたライン画像

Parameters

Name	Type	Default	Range	Description / Options
幅 width	Int	64	1–1024	キャンバスの幅（ピクセル）
高さ height	Int	64	1–1024	キャンバスの高さ（ピクセル）
始点X x1	Int	0	0–1024	始点の X 座標
始点Y y1	Int	0	0–1024	始点の Y 座標
終点X x2	Int	63	0–1024	終点の X 座標
終点Y y2	Int	63	0–1024	終点の Y 座標
太さ thickness	Int	1	1–64	線の太さ（ピクセル）
色 color	Color	[1,1,1,1]	—	線の色（入力ポート未接続時に使用）

Overview

A single-purpose node that draws a pixel-perfect straight line between two points using Bresenham's algorithm. Use it for numerically driven lines defined by coordinates, such as lasers, ropes, gauges, and reticles.

Usage tips

Promote the endpoints to input pins 📌 and connect coordinates from a waveform or path_sample to create a moving line such as a beam or connecting rope.
Curves and complex shapes belong to bezier_path + path_stroke. This node's advantage is the convenience of drawing from two numeric pairs.
Thicknesses of 2px or more are expanded with a circular brush. A horizontal or vertical line has a cross-section exactly as wide as the requested thickness.

Related nodes

path_stroke — draws curved or styled lines
shape_generate — draws other basic shapes
expression_vec2 — calculates endpoint coordinates
blend — composites the line over a background

Canvas-size binding

As a generator node, new instances automatically bind width / height to the project canvas size (_canvasWidth / _canvasHeight). The initial endpoint of a new instance is also placed on the current bottom-right pixel (x2 = width - 1, y2 = height - 1). The endpoint itself is not bound and remains freely editable afterward.

State	width/height value
Default (new instance)	Bound to the project canvas size and follows it automatically
Entered manually or unbound by the user	Local value independent of the canvas size

Use the 🔗 button in the Inspector to remove or recreate the binding.

Algorithm

1px thickness: Bresenham's line algorithm (exact pixel line)
2px or more: applies a circular brush at each Bresenham point
Odd-sized brushes are symmetric around the line coordinate.
An even-sized brush cannot be perfectly symmetric on integer pixel centers, so its center is fixed 0.5px down and right from the line coordinate. For example, a 2px brush occupies offsets 0, +1, while a 4px brush occupies -1, 0, +1, +2.
Brush pixels outside the canvas are clipped.

Examples

LineGenerate → Blend → Preview — draw a straight line
TimeSource → SineWave → Remap → LineGenerate(x2) → AnimationRender — animate line endpoints
ColorPicker → LineGenerate(color) — draw a line in any color

Input Ports

Output Ports