Agent skill

Pixijs Scene Graphics

by netaart in netaart/cohub

A skill your agent uses when drawing vector shapes and paths in PixiJS v8.

MITAuto-check passed

Install Pixijs Scene Graphics

skills CLI
$ npx skills add netaart/cohub --skill pixijs-scene-graphics -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install netaart/cohub pixijs-scene-graphics --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/netaart/cohub.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/pixijs-scene-graphics .claude/skills/pixijs-scene-graphics && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
pixijs-scene-graphics
GitHub stars
572
Used in
1 other repo
Token cost
~6.2k tokens
SKILL.md length
1,823 words
Files
1
Skills in repo
30
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when drawing vector shapes and paths in PixiJS v8.

  • Drawing vector shapes and paths in PixiJS v8
  • SKILL.md covers Quick Start, Constructor options, Core Patterns and Common Mistakes, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • GraphicsContext

What it does

Pixijs Scene Graphics is an agent skill from netaart/cohub. Use this skill when drawing vector shapes and paths in PixiJS v8. Covers the Graphics API: shape-then-fill methods (rect/circle/ellipse/poly/roundRect/star/regularPoly/roundPoly/roundShape/filletRect/chamferRect), path methods (moveTo/lineTo/bezierCurveTo/quadraticCurveTo/arc/arcTo/arcToSvg/closePath), fill/stroke/cut, holes, FillGradient (linear/radial), FillPattern, GraphicsContext sharing, svg import/export, containsPoint hit testing, cloning, clearing, bounds, fillStyle/strokeStyle, draw-time transforms…

Its SKILL.md is about 6.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: A living space where people and agents create, play, and build together. The licence is MIT.

When your agent uses it

  • Drawing vector shapes and paths in PixiJS v8
  • GraphicsContext
  • GraphicsContextToSvg
  • GraphicsOptions

Example prompts

  • “/pixijs-scene-graphics”

What it can do on your machine

Read from SKILL.md and the folder at commit eee4291. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • pixijs.download

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Pixijs Scene Graphics loads about 6.2k tokens when it runs. Until then it costs about 245 tokens; SKILL.md has 1,823 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~245
When it runs · the whole SKILL.md, loaded when a task matches
~6.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from netaart/cohub at commit eee4291, republished under its MIT licence (© netaart). 1,823 words, ~6,229 tokens.

Download SKILL.mdSave it as .claude/skills/pixijs-scene-graphics/SKILL.md (or your agent's skills folder).
name
pixijs-scene-graphics
description
Use this skill when drawing vector shapes and paths in PixiJS v8. Covers the Graphics API: shape-then-fill methods (rect/circle/ellipse/poly/roundRect/star/regularPoly/roundPoly/roundShape/filletRect/chamferRect), path methods (moveTo/lineTo/bezierCurveTo/quadraticCurveTo/arc/arcTo/arcToSvg/closePath), fill/stroke/cut, holes, FillGradient (linear/radial), FillPattern, GraphicsContext sharing, svg import/export, containsPoint hit testing, cloning, clearing, bounds, fillStyle/strokeStyle, draw-time transforms (rotateTransform/scaleTransform/translateTransform/setTransform/save/restore), default styles, GraphicsPath reuse. Triggers on: Graphics, GraphicsContext, rect, circle, poly, roundRect, fill, stroke, cut, hole, beginHole, FillGradient, FillPattern, moveTo, bezierCurveTo, svg, graphicsContextToSvg, svg export, GraphicsOptions, containsPoint, clone, clear, bounds, rotateTransform, translateTransform, setFillStyle, setStrokeStyle, GraphicsPath.
license
MIT
disable-model-invocation
true

Graphics is the vector-drawing leaf of the PixiJS v8 scene graph. The v8 API follows a shape-then-style pattern: draw a shape or path with rect, circle, moveTo, etc., then apply fill and/or stroke. Every method returns this for chaining, and the drawing instructions live on a GraphicsContext that can be shared between instances.

Assumes familiarity with pixijs-scene-core-concepts. Graphics is a leaf: do not nest children inside it. Wrap multiple Graphics objects in a Container to group them.

Quick Start

ts
const g = new Graphics();

g.rect(10, 10, 200, 100)
  .fill({ color: 0x3498db, alpha: 0.8 })
  .stroke({ width: 3, color: 0x2c3e50 });

g.circle(300, 60, 40).fill(0xe74c3c);

g.moveTo(50, 200)
  .lineTo(200, 200)
  .bezierCurveTo(250, 250, 100, 300, 50, 250)
  .closePath()
  .fill(0x6c5ce7);

app.stage.addChild(g);

Related skills: pixijs-scene-core-concepts (scene graph basics), pixijs-scene-container (group graphics with other objects), pixijs-scene-core-concepts/references/masking.md (Graphics as a stencil mask), pixijs-filters (effects), pixijs-performance (batching, cacheAsTexture).

Constructor options

All Container options (position, scale, tint, label, filters, zIndex, etc.) are also valid here — see skills/pixijs-scene-core-concepts/references/constructor-options.md.

Leaf-specific options added by GraphicsOptions:

OptionTypeDefaultDescription
contextGraphicsContextnew GraphicsContext()Shared drawing context. Passing a context reuses its tessellated geometry across multiple Graphics nodes, avoiding duplicate GPU work. If omitted, each Graphics creates and owns a new context.
roundPixelsbooleanfalseRounds the final on-screen x/y to the nearest pixel. Produces crisper lines for pixel-art styles at the cost of smooth sub-pixel movement.

The constructor also accepts a GraphicsContext instance as its sole argument (new Graphics(ctx)), which is shorthand for new Graphics({ context: ctx }).

Core Patterns

Shape-then-fill workflow
ts
const g = new Graphics();

g.rect(10, 10, 200, 100)
  .fill({ color: 0x3498db, alpha: 0.8 })
  .stroke({ width: 3, color: 0x2c3e50 });

g.circle(150, 200, 40).fill(0xe74c3c);
g.roundRect(300, 10, 150, 80, 12).fill(0x2ecc71);
g.poly([0, 0, 60, 0, 30, 50], true).fill(0x9b59b6);
g.star(400, 200, 5, 40, 20, 0).fill(0xf39c12);
g.ellipse(100, 350, 60, 30).fill(0x1abc9c);

fill() accepts a FillInput: a color number/string, { color, alpha, texture, matrix, textureSpace }, a FillGradient, a FillPattern, or a Texture. When filling with a texture, textureSpace controls coordinate mapping:

  • 'local' (default): texture is scaled to fit each shape's bounding box (normalized 0-1 coordinates).
  • 'global': texture position/scale are relative to the Graphics object's coordinate system, shared across all shapes.

FillInput also supports a nested fill subfield: a FillStyle options object can embed a FillGradient or FillPattern under its fill key, which applies the gradient or pattern alongside the color, alpha, texture, and matrix modifiers on the outer object.

stroke() accepts a color, a FillGradient, a FillPattern, or a StrokeStyle object that combines all FillStyle keys (color, alpha, texture, matrix, fill, textureSpace) with stroke attributes:

AttributeDefaultNotes
width1Pixel width of the stroke.
cap'butt'One of 'butt', 'round', 'square'. End style for open paths.
join'miter'One of 'miter', 'round', 'bevel'. Corner style.
miterLimit10Caps how far miter joins extend before falling back to bevel.
alignment0.51 = inside the shape, 0.5 = centered, 0 = outside.
pixelLinefalseAligns 1-pixel lines to the pixel grid for crisp output. Graphics-only.

Strokes can use the same gradients and patterns as fills via fill: gradient or texture: tex:

ts
const grad = new FillGradient({
  end: { x: 1, y: 0 },
  colorStops: [
    { offset: 0, color: 0xff0000 },
    { offset: 1, color: 0x0000ff },
  ],
});
g.rect(0, 0, 200, 100).stroke({
  width: 8,
  fill: grad,
  join: "round",
  cap: "round",
});

Both fill() and stroke() can be called after the same shape; calling stroke() immediately after fill() reuses the same path.

Advanced shape primitives
ts
g.regularPoly(100, 100, 50, 6, 0).fill(0x3498db);
g.roundPoly(250, 100, 50, 5, 10).fill(0xe74c3c);
g.chamferRect(350, 50, 100, 80, 15).fill(0x2ecc71);
g.filletRect(500, 50, 100, 80, 15).fill(0x9b59b6);
g.roundShape(
  [
    { x: 50, y: 250, radius: 20 },
    { x: 150, y: 250, radius: 5 },
    { x: 150, y: 350, radius: 10 },
    { x: 50, y: 350, radius: 15 },
  ],
  10,
).fill(0xf39c12);
Holes with cut()
ts
g.rect(0, 0, 200, 200).fill(0x00ff00).circle(100, 100, 50).cut();

cut() subtracts the current active path from the previously drawn fill or stroke. Rules:

  • The hole must be completely inside the target shape. Holes that overlap edges or sit outside the shape will not render correctly because the renderer triangulates with the hole as an interior boundary.
  • cut() looks back at up to the last two instructions. When you fill() and then stroke() the same path, a single cut() adds the hole to the stroke first; a second cut() adds it to the fill underneath.
  • After cut(), the active path resets so you can start the next shape with moveTo, rect, etc.
  • cut() applies to strokes too — g.rect(...).stroke(...).circle(...).cut() cuts a hole through the stroke outline.

Punch multiple holes with a single cut() by drawing several shapes into the active path before calling it. Each shape accumulates into the same hole path:

ts
const g = new Graphics();

g.rect(350, 350, 150, 150).fill(0x00ff00);

// Draw three circles into the active path, then cut them all in one call
g.circle(375, 375, 25);
g.circle(425, 425, 25);
g.circle(475, 475, 25);
g.cut();

If you need holes on separate filled shapes, give each shape its own fill() and matching cut():

ts
g.rect(0, 0, 100, 100).fill(0x3498db);
g.circle(50, 50, 20).cut(); // hole in the rect

g.rect(120, 0, 100, 100).fill(0xe74c3c);
g.circle(170, 50, 20).cut(); // hole in the second rect

Calling cut() on a shape that already has a hole adds to the existing hole path rather than replacing it. Use this to layer holes additively.

Paths and complex shapes
ts
g.moveTo(50, 50)
  .lineTo(200, 50)
  .bezierCurveTo(250, 100, 250, 150, 200, 200)
  .quadraticCurveTo(100, 250, 50, 200)
  .closePath()
  .fill({ color: 0x6c5ce7, alpha: 0.7 })
  .stroke({ width: 2, color: 0xdfe6e9 });

Path methods: moveTo, lineTo, bezierCurveTo, quadraticCurveTo, arc, arcTo, arcToSvg, closePath. Call beginPath() to discard the current path and start a new one.

ts
// arc(cx, cy, radius, startAngle, endAngle, counterclockwise?)
g.moveTo(80, 50)
  .arc(50, 50, 30, 0, Math.PI)
  .stroke({ width: 4, color: 0x2c3e50 });

// arcTo(x1, y1, x2, y2, radius) — rounded corner between two line segments
g.moveTo(150, 20)
  .arcTo(200, 20, 200, 80, 20)
  .lineTo(200, 80)
  .stroke({ width: 2 });

// arcToSvg(rx, ry, xAxisRotation, largeArcFlag, sweepFlag, x, y) — matches the SVG `A` command
g.moveTo(250, 50).arcToSvg(40, 20, 0, 1, 0, 330, 50).stroke({ width: 2 });
Gradients and patterns
ts
// Linear gradient
const linear = new FillGradient({
  end: { x: 1, y: 0 },
  colorStops: [
    { offset: 0, color: 0xff0000 },
    { offset: 1, color: 0x0000ff },
  ],
});
g.rect(0, 0, 200, 100).fill(linear);

// Radial gradient — inner circle at center, outer circle reaches edges
const radial = new FillGradient({
  type: "radial",
  center: { x: 100, y: 100 },
  innerRadius: 0,
  outerCenter: { x: 100, y: 100 },
  outerRadius: 100,
  colorStops: [
    { offset: 0, color: 0xffffff },
    { offset: 1, color: 0x000000 },
  ],
});
g.circle(100, 100, 100).fill(radial);

const brick = await Assets.load("brick.png");

// Options-object form (preferred)
const pattern = new FillPattern({
  texture: brick,
  repetition: "repeat", // 'repeat' | 'repeat-x' | 'repeat-y' | 'no-repeat'
  textureSpace: "global", // 'global' (default) | 'local'
});

// Legacy positional form is still supported
const pattern2 = new FillPattern(brick, "repeat");

g.rect(0, 120, 200, 100).fill(pattern);

FillGradient's default type is 'linear' with start {0,0} to end {0,1}. Set type: 'radial' with center/innerRadius and outerCenter/outerRadius for radial gradients.

FillPattern takes an options object ({ texture, repetition?, textureSpace? }) or the legacy positional form (new FillPattern(texture, repetition?)). repetition selects the tiling mode. textureSpace controls how tiles map to shapes:

  • 'global' (default): tiles repeat continuously across the Graphics coordinate system, so adjacent shapes share one tiling grid. Best for backgrounds and seamless textures.
  • 'local': a single tile fits each shape's bounds. Combine with setTransform to subdivide a shape into a tile grid.

Note FillPattern defaults textureSpace to 'global', unlike the 'local' default for texture fills shown above.

setTransform(matrix) copies the given matrix directly onto the pattern transform to scale, rotate, or offset the tiling; call setTransform() with no argument to reset to identity.

Drawing a texture directly
ts
const tex = await Assets.load("icon.png");

// Draw the whole texture at (x, y) with optional tint
g.texture(tex, 0xffffff, 20, 20);

// Draw a subregion (dx, dy, dw, dh)
g.texture(tex, 0xff0000, 100, 20, 64, 64);

Graphics.texture(texture, tint?, dx?, dy?, dw?, dh?) is a shortcut for drawing a single textured rect without going through fill(). Useful for icons where you don't need the full sprite lifecycle.

GraphicsContext sharing
ts
const ctx = new GraphicsContext().rect(0, 0, 50, 50).fill(0xff0000);

const g1 = new Graphics(ctx);
const g2 = new Graphics(ctx);
g2.x = 100;

Context sharing avoids duplicate GPU geometry; the expensive tessellation runs once. You can also assign a context after construction: g.context = existingContext.

SVG import and export

Parse SVG markup into the active context with svg():

ts
g.svg(`<svg viewBox="0 0 100 100">
    <circle cx="50" cy="50" r="40" fill="red"/>
</svg>`);

svg() supports paths, basic shapes, and inline styles; complex hole geometries may render inaccurately because Pixi's triangulation is performance-optimized.

Serialize a Graphics or GraphicsContext back to a self-contained SVG document string with graphicsContextToSvg:

ts
import { Graphics, graphicsContextToSvg } from "pixi.js";

const g = new Graphics()
  .rect(0, 0, 100, 50)
  .fill({ color: 0xff0000 })
  .circle(150, 25, 25)
  .stroke({ color: 0x0000ff, width: 4 });

const svgString = graphicsContextToSvg(g, 2);

graphicsContextToSvg(source, precision = 2) is a pure function that reads the context's instructions and returns a complete <svg> string with an auto-computed viewBox. Pass a Graphics or a GraphicsContext; precision controls decimal places on emitted coordinates. Exports every shape-then-fill primitive (advanced ones like regularPoly/filletRect fall back to a shape-path), all path methods, stroke attributes (width, cap, join, miterLimit), fill-opacity/stroke-opacity, and FillGradient (linear and radial) via a <defs> block. Holes collapse into one <path> with fill-rule="evenodd". FillPattern and texture fills have no SVG equivalent: patterns fall through to the fill's solid color, and texture() instructions are skipped entirely. Exported markup roundtrips back through g.svg(...) without cleanup, so you can export, store, and later reimport a shape into another Graphics.

Reusing a GraphicsPath
ts
const arrow = new GraphicsPath()
  .moveTo(0, 0)
  .lineTo(40, 0)
  .lineTo(40, -10)
  .lineTo(60, 10)
  .lineTo(40, 30)
  .lineTo(40, 20)
  .lineTo(0, 20)
  .closePath();

g.path(arrow).fill(0x3498db);
g.translateTransform(80, 0).path(arrow).fill(0xe74c3c);

Graphics.path(graphicsPath) (and GraphicsContext.path()) appends a prebuilt GraphicsPath onto the active path. Build once, draw many times.

Draw-time transforms

Graphics has its own transform stack used while drawing that is separate from the Container transform applied to the rendered output. The drawing methods are renamed to avoid clashing with Container.rotation, Container.scale, Container.position:

Drawing transformContainer transform
g.rotateTransform(angle)g.rotation
g.scaleTransform(x, y?)g.scale.set(x, y)
g.translateTransform(x, y?)g.position.set(x, y)
g.setTransform(matrix) or setTransform(a,b,c,d,tx,ty)g.setFromMatrix(matrix)
g.transform(matrix) or transform(a,b,c,d,tx,ty)n/a
g.getTransform() / g.resetTransform()n/a
ts
const g = new Graphics();

g.translateTransform(100, 100)
  .rotateTransform(Math.PI / 4)
  .rect(-25, -25, 50, 50)
  .fill(0x3498db);

// The square is rotated 45 degrees as it is added to the geometry.
// Setting g.rotation later rotates the entire Graphics on screen.

The drawing transform affects every subsequent shape and path command added to the context. Use save()/restore() to scope it.

Show full SKILL.md (718 more words)Show less
State save/restore
ts
g.save();
g.translateTransform(100, 100);
g.rotateTransform(Math.PI / 4);
g.rect(0, 0, 50, 50).fill(0xff0000);
g.restore();

save() pushes the drawing transform, fill style, and stroke style onto a stack; restore() pops them. Graphics exposes save/restore directly, mirroring the underlying GraphicsContext calls.

Default styles via setFillStyle / setStrokeStyle
ts
g.setFillStyle({ color: 0x3498db, alpha: 0.8 }).setStrokeStyle({
  width: 2,
  color: 0x2c3e50,
});

g.rect(0, 0, 100, 100).fill().stroke();
g.circle(150, 50, 40).fill().stroke();

setFillStyle() and setStrokeStyle() configure the default style used by subsequent fill() / stroke() calls when no argument is passed. Read or replace the current style at any time via the fillStyle and strokeStyle getters/setters. Override the library-wide defaults by mutating GraphicsContext.defaultFillStyle and GraphicsContext.defaultStrokeStyle once at startup.

Hit testing
ts
const g = new Graphics().star(100, 100, 5, 60, 30).fill(0xf39c12);
g.eventMode = "static";
g.on("pointermove", (e) => {
  if (g.containsPoint(g.toLocal(e.global))) {
    /* over the star, not just its bbox */
  }
});

Graphics.containsPoint(pointInLocalSpace) runs a topology-aware test against every filled and stroked shape in the context, including holes. Convert global pointer coordinates with toLocal() first.

Cloning, clearing, and bounds
ts
const g = new Graphics().rect(0, 0, 100, 100).fill(0xff0000);

const shallow = g.clone(); // shares the same GraphicsContext
const deep = g.clone(true); // creates an independent context

console.log(g.bounds.width); // 100 - geometry bounds before transforms

g.clear(); // wipes active path, instructions, and transform; fill/stroke styles persist
  • clone() returns a new Graphics that shares the source context (cheap, geometry is reused). Both objects update together if the context changes.
  • clone(true) clones the context as well so the new Graphics can be edited independently.
  • bounds returns the geometry bounds before the Container transform. Useful for layout decisions.
  • clear() resets the context so the same Graphics can be reused. See Common Mistakes below for guidance on when to clear versus when to keep stable geometry.
GraphicsContext utilities
MemberBehavior
ctx.path(graphicsPath)Apply a prebuilt GraphicsPath onto the active path. Reuse one path across many contexts or frames.
ctx.beginPath()Discard the current active path and start a new one without affecting committed instructions.
ctx.setFillStyle(style) / ctx.fillStyleSet or read the default fill style used by subsequent shapes without calling fill().
ctx.setStrokeStyle(style) / ctx.strokeStyleSet or read the default stroke style used by subsequent shapes without calling stroke().
ctx.boundsCached geometry bounds across all fill/stroke/texture instructions.
ctx.clear()Wipe instructions, the active path, and the drawing transform.
ctx.clone()Deep copy including instructions, active path, transform, styles, and stack.
ctx.containsPoint(point)Topology-aware hit test against all filled and stroked shapes (including holes).
ctx.batchModeOne of 'auto', 'batch', 'no-batch' — force or disable batching for the shapes in this context.
ctx.customShaderAssign a Shader to override the default graphics shader.
GraphicsContext.defaultFillStyleStatic fallback used when fill() is called without arguments and no fill style is set.
GraphicsContext.defaultStrokeStyleStatic fallback used when stroke() is called without arguments and no stroke style is set.

GraphicsContext is an EventEmitter that emits update, destroy, and unload events. Subscribe via ctx.on('update' | 'destroy' | 'unload', cb) when tooling or pools need to react to context lifecycle changes.

Common Mistakes

[CRITICAL] Using v7 beginFill/drawRect/endFill

Wrong:

ts
const g = new Graphics().beginFill(0xff0000).drawRect(0, 0, 100, 100).endFill();

Correct:

ts
const g = new Graphics().rect(0, 0, 100, 100).fill(0xff0000);

v8 replaced "set style, draw, end" with "draw shape, then apply style". beginFill/endFill do not exist.

[CRITICAL] Using old shape method names

Wrong:

ts
g.drawCircle(50, 50, 25);

Correct:

ts
g.circle(50, 50, 25);

All draw* methods were renamed in v8: drawRect → rect, drawCircle → circle, drawEllipse → ellipse, drawPolygon → poly, drawRoundedRect → roundRect, drawStar → star.

[CRITICAL] Using lineStyle instead of stroke

Wrong:

ts
g.lineStyle(2, 0xffffff);
g.drawRect(0, 0, 100, 100);

Correct:

ts
g.rect(0, 0, 100, 100).stroke({ width: 2, color: 0xffffff });

lineStyle was removed. Use stroke() after drawing the shape. The stroke options object accepts width, color, alpha, cap, join, alignment, miterLimit, and pixelLine.

[HIGH] Using beginHole/endHole for holes

Wrong:

ts
g.beginFill(0x00ff00)
  .drawRect(0, 0, 100, 100)
  .beginHole()
  .drawCircle(50, 50, 20)
  .endHole()
  .endFill();

Correct:

ts
g.rect(0, 0, 100, 100).fill(0x00ff00).circle(50, 50, 20).cut();

beginHole/endHole were replaced by cut(). Draw the outer shape, fill it, then draw the hole shape and call cut().

[HIGH] Using GraphicsGeometry instead of GraphicsContext

Wrong:

ts
const geom = g.geometry;
const clone = new Graphics(geom);

Correct:

ts
const ctx = new GraphicsContext().rect(0, 0, 100, 100).fill(0xff0000);
const g1 = new Graphics(ctx);
const g2 = new Graphics(ctx);

GraphicsGeometry was replaced by GraphicsContext in v8. There is no .geometry property.

[HIGH] Destroying a shared GraphicsContext unexpectedly
ts
const ctx = new GraphicsContext().rect(0, 0, 50, 50).fill(0xff0000);
const g1 = new Graphics(ctx);
const g2 = new Graphics(ctx);

g1.destroy({ context: true }); // also nullifies g2's context reference

Destroying a shared GraphicsContext does not destroy sharing instances but breaks them by nullifying their context reference. When passing a context via the constructor, destroy() with no args preserves the context; use destroy({ context: false }) to be explicit. Only destroy the context when all sharing instances are done with it. A self-owned context (not passed via constructor) is still destroyed by destroy() with no args.

[HIGH] Clearing and redrawing Graphics every frame

Graphics are designed to be stable, not dynamic. Calling clear() and redrawing every frame rebuilds GPU geometry each time. For dynamic visuals:

  • Use Sprite with pre-rendered textures and transform changes.
  • Use cacheAsTexture(true) for complex static graphics.
  • For real-time shape changes, consider Mesh with custom geometry updates.

This is the opposite of HTML Canvas 2D, where redrawing each frame is normal. PixiJS tessellates shapes into GPU triangles, so initial draw is expensive but subsequent renders are fast. Treat Graphics more like SVG elements than canvas draw calls.

[MEDIUM] Do not nest children inside a Graphics

Graphics sets allowChildren = false. Adding children logs a deprecation warning and will be a hard error in a future version. Wrap multiple graphics alongside other leaves in a plain Container:

ts
const group = new Container();
group.addChild(graphics, sprite);

API Reference

© netaart, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/pixijs-scene-graphics of netaart/cohub.

Open the folder on GitHubat commit eee4291

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in netaart/cohub, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Pixijs Scene Graphics next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Pixijs Scene Graphics compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Pixijs Scene Graphics this skillnetaart/cohub5721 repos~6.2kAutomated safety check: PassMIT
Graphics And Shapesautonomous-ai/openharness1.2k—~4.9kAutomated safety check: PassMIT
Vector Searchruvnet/ruflo74k—~1.5kAutomated safety check: NotesMIT
Hunt RAG Vectorsickn33/agentic-awesome-skills47k1 repos~3kAutomated safety check: PassMIT
HyperFrames Motion Graphicsheygen-com/hyperframes60k3 repos~4kAutomated safety check: PassApache-2.0
Vector Database Opssickn33/agentic-awesome-skills47k2 repos~2.2kAutomated safety check: PassMIT

Similar skills

  • Graphics And Shapes

    autonomous-ai/openharness

    A skill your agent uses when drawing shapes and graphics in Phaser 4.

    1.2k GitHub stars~4.9k tokensUpdated today
    Game DevelopmentAuto-check passed
  • Vector Search

    ruvnet/ruflo

    Vector search via embeddings (large-scale HNSW) and ruvllmhnsw (WASM router for ≤11 hot patterns), with RaBitQ 1-bit quantization for 32× memory reduction

    74k GitHub stars~1.5k tokensUpdated today
    AI & LLM EngineeringAuto-check: notes
  • Hunt RAG Vector

    sickn33/agentic-awesome-skills

    Hunt vector-store / embedding-layer weaknesses in RAG pipelines (OWASP LLM08 Vector and Embedding Weaknesses)

    47k GitHub starsUsed in 1 repo~3k tokens
    AI & LLM EngineeringAuto-check passed
  • HyperFrames Motion Graphics

    heygen-com/hyperframes

    Builds short, unnarrated motion graphics such as kinetic type, stat count-ups, logo stings, lower thirds, animated maps and tweets, rendered to MP4 or a transparent overlay.

    60k GitHub starsUsed in 3 repos~4k tokens
    Media & CreativeAuto-check passed
  • Vector Database Ops

    sickn33/agentic-awesome-skills

    Deploy, manage, and optimize vector databases for AI applications.

    47k GitHub starsUsed in 2 repos~2.2k tokens
    DatabasesAuto-check passed
  • Vector Embed

    ruvnet/ruflo

    Generate embeddings via npx ruvector@0.2.25 embed text (ONNX all-MiniLM-L6-v2, 384-dim), normalize, and store in HNSW index

    74k GitHub stars~591 tokensUpdated today
    AI & LLM EngineeringAuto-check: notes

More from netaart/cohub

All 30 skills in this repo
  • Pixijs Assets

    netaart/cohub

    A skill your agent uses when loading and managing resources in PixiJS v8.

    572 GitHub starsUsed in 1 repo~5k tokens
    Auto-check passed
  • A skill your agent uses when reasoning about the PixiJS v8 scene graph as a whole: how containers, leaves, transforms, and render order fit together.

    572 GitHub starsUsed in 1 repo~3.9k tokens
    Auto-check passed
  • Pixijs Scene Mesh

    netaart/cohub

    A skill your agent uses when rendering custom geometry in PixiJS v8.

    572 GitHub starsUsed in 1 repo~1.8k tokens
    Auto-check passed
  • Pixijs Scene Sprite

    netaart/cohub

    A skill your agent uses when drawing images in PixiJS v8. An agent skill from netaart/cohub.

    572 GitHub starsUsed in 1 repo~1.6k tokens
    Auto-check passed
  • Pixijs Scene Text

    netaart/cohub

    A skill your agent uses when rendering text in PixiJS v8. An agent skill from netaart/cohub.

    572 GitHub starsUsed in 1 repo~2.1k tokens
    Auto-check passed
  • A skill your agent uses when understanding how PixiJS v8 renders frames: the systems-and-pipes renderer, the render loop, and how the library adapts to different environments.

    572 GitHub stars~1.7k tokensUpdated today
    Auto-check passed

Questions about Pixijs Scene Graphics

What does Pixijs Scene Graphics do?

A skill your agent uses when drawing vector shapes and paths in PixiJS v8. Pixijs Scene Graphics is an agent skill from netaart/cohub. Use this skill when drawing vector shapes and paths in PixiJS v8.

When should I use Pixijs Scene Graphics?

Pixijs Scene Graphics fits situations like: drawing vector shapes and paths in PixiJS v8; graphicsContext; graphicsContextToSvg; graphicsOptions.

How do I install Pixijs Scene Graphics in Claude Code?

Run `npx skills add netaart/cohub --skill pixijs-scene-graphics -a claude-code`. Or copy the skill folder (.agents/skills/pixijs-scene-graphics in netaart/cohub) into .claude/skills/pixijs-scene-graphics in your project. Claude Code loads it when a task matches its description.

How do I install Pixijs Scene Graphics in Codex?

Run `npx skills add netaart/cohub --skill pixijs-scene-graphics -a codex`. Or copy the skill folder (.agents/skills/pixijs-scene-graphics in netaart/cohub) into .agents/skills/pixijs-scene-graphics in your project. Codex loads it when a task matches its description.

Can I use Pixijs Scene Graphics in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add netaart/cohub --skill pixijs-scene-graphics -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pixijs-scene-graphics, .gemini/skills/pixijs-scene-graphics, .github/skills/pixijs-scene-graphics and .opencode/skills/pixijs-scene-graphics in your project.

What does Pixijs Scene Graphics need to run?

SKILL.md names no scripts, command-line tools or credentials: Pixijs Scene Graphics is instructions for the agent only.

Does Pixijs Scene Graphics access the network?

SKILL.md names 1 domain. As links in the text: pixijs.download. This is read from the text; nothing was executed.

Is Pixijs Scene Graphics safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Pixijs Scene Graphics use?

Pixijs Scene Graphics is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Pixijs Scene Graphics use?

About 6.2k tokens (SKILL.md is roughly 25k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Pixijs Scene Graphics?

Skills that share tags, products or a category with Pixijs Scene Graphics: Graphics And Shapes (autonomous-ai/openharness, 1.2k stars), Vector Search (ruvnet/ruflo, 74k stars), Hunt RAG Vector (sickn33/agentic-awesome-skills, 47k stars) and HyperFrames Motion Graphics (heygen-com/hyperframes, 60k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Pixijs Scene Graphics?

netaart (a GitHub organization) maintains it in netaart/cohub, which has 572 GitHub stars. The repository holds 30 skills in this directory. The repository was last updated on October 10, 2026.

Source: netaart/cohub on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.