eulerjs API / @eulerjs/marine/webgpu / QuadtreeLod

QuadtreeLod

Defined in: packages/marine/src/webgpu/QuadtreeLod.ts:54

The sea as a quadtree of square nodes (Strugar's CDLOD, 2009): from a few nodes the size of the whole sea around the centre, each splits into four while the centre is near enough, so that nodes grow with distance from it. Every node is the same grid, drawn in one instanced call; its vertices morph onto the grid twice as coarse by the distance its parent stops splitting at, so neighbours of different sizes meet without cracks. Given the camera, nodes out of its view are left out.

Extends

• Mesh

Constructors

Constructor

new QuadtreeLod(fields, options?): QuadtreeLod;

Defined in: packages/marine/src/webgpu/QuadtreeLod.ts:74

Parameters

Parameter	Type
fields	GpuWaveFields
options?	QuadtreeLodOptions

Returns

QuadtreeLod

Overrides

Mesh.constructor

Properties

Property	Modifier	Type	Default value	Description	Overrides	Defined in
cellsAcross	readonly	number	undefined	-	-	packages/marine/src/webgpu/QuadtreeLod.ts:56
finestSpacing	readonly	number	undefined	-	-	packages/marine/src/webgpu/QuadtreeLod.ts:55
geometry	public	InstancedBufferGeometry	THREE.BufferGeometry | new THREE.BufferGeometry().	An instance of THREE.BufferGeometry | BufferGeometry (or derived classes), defining the object's structure.	Mesh.geometry	packages/marine/src/webgpu/QuadtreeLod.ts:62
levelCount	readonly	number	undefined	-	-	packages/marine/src/webgpu/QuadtreeLod.ts:57
material	public	SpectralWaterMaterial	THREE.MeshBasicMaterial | new THREE.MeshBasicMaterial().	An instance of material derived from the THREE.Material | Material base class or an array of materials, defining the object's appearance.	Mesh.material	packages/marine/src/webgpu/QuadtreeLod.ts:63
nodeCount	public	number	0	Nodes drawn the last update.	-	packages/marine/src/webgpu/QuadtreeLod.ts:65
rangeFactor	readonly	number	undefined	-	-	packages/marine/src/webgpu/QuadtreeLod.ts:58
waveBound	public	number | undefined	undefined	As set, or undefined to follow the sea.	-	packages/marine/src/webgpu/QuadtreeLod.ts:60

Accessors

drawCallCount

Get Signature

get drawCallCount(): number;

Defined in: packages/marine/src/webgpu/QuadtreeLod.ts:130

Returns

number

---

reach

Get Signature

get reach(): number;

Defined in: packages/marine/src/webgpu/QuadtreeLod.ts:122

Metres from the centre the sea reaches at least: the roots around the centre's.

Returns

number

---

rootSize

Get Signature

get rootSize(): number;

Defined in: packages/marine/src/webgpu/QuadtreeLod.ts:117

The size of the largest nodes, those of the last level.

Returns

number

---

triangleCount

Get Signature

get triangleCount(): number;

Defined in: packages/marine/src/webgpu/QuadtreeLod.ts:126

Returns

number

Methods

update()

update(centre, camera?): void;

Defined in: packages/marine/src/webgpu/QuadtreeLod.ts:135

Chooses the nodes around centre, the viewer usually; with camera, only those in its view.

Parameters

Parameter	Type
centre	Vector3
camera?	Camera

Returns

void