---
title: "Procedural 3D shapes: API"
package: "@phaser-ae/art-3d"
tier: Free
version: 3.0.0-3
released: 2026-10-14
updated: 2026-10-19
description: "Crystals, boulders, pillars and spires as generated meshes, plus trees and seeded crystal clusters, to dress a 3D scene with no model files."
url: https://phaser.io/packs/art-3d/api
site: Phaser - https://phaser.io
---

# Procedural 3D shapes: API

`@phaser-ae/art-3d` — Crystals, boulders, pillars and spires as generated meshes, and the composites they build into — a tree, a cluster.

## The pack

### `art3d`

```ts
function art3d(): Pack<{ art3d: Art3dApi }>
```

The `art-3d` pack: procedural crystals, rocks, pillars and spires, and the composites they build into.
Requires a 3D world; the shapes are defined once as meshes, so every crystal in a scene is one draw.

## Functions

### `crystalVerts`

```ts
function crystalVerts(): Float32Array
```

Hexagonal bipyramid — the classic game crystal (flat facets).

### `pillarVerts`

```ts
function pillarVerts(): Float32Array
```

A ruined column: square plinth, octagonal fluted shaft, square cap.

### `rockVerts`

```ts
function rockVerts(): Float32Array
```

A low-poly boulder: jittered sphere with flat facets (deterministic).

### `spireVerts`

```ts
function spireVerts(): Float32Array
```

A tapering four-sided obelisk with a pyramidal tip.

## Types

### `Art3dApi`

```ts
interface Art3dApi
```

`game.art3d`.

- `crystal(spec?: Spec): Handle` — A six-sided crystal shard. Glossy light blue by default.
- `rock(spec?: Spec): Handle` — An irregular boulder. Matte grey by default.
- `pillar(spec?: Spec): Handle` — A fluted column with a plinth and a cap.
- `spire(spec?: Spec): Handle` — A tapering four-sided obelisk with a pyramidal tip.
- `tree(opts?: { x?: number; z?: number; scale?: number; leaf?: string; trunk?: string }): Handle[]` — A trunk and two canopy cones. Returns the three objects, so the game can move them together.
- `crystalCluster(opts?: { x?: number; z?: number; count?: number; color?: string; seed?: number }): Handle[]` — A deterministic scatter of tilted crystals around a point.

---

## For AI agents: Phaser AE

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Read any page of this site as Markdown by adding `.md` to its URL (the home page is https://phaser.io/index.md), or by asking for `text/markdown`. The index for agents is https://phaser.io/llms.txt. On the site's pages, the browser's Web MCP also offers `phaser_ae_guide`, `read_page_as_markdown` and `open_phaser_ae`.