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Documentation / scene / VertexBinormalNode

Class: VertexBinormalNode ​

Defined in: libs/scene/src/utility/blueprint/material/inputs.ts:828

Vertex binormal (bitangent) input node

Remarks ​

Provides access to per-vertex binormal (also called bitangent) vectors in world space. Binormals are unit vectors perpendicular to both the normal and tangent, aligned with the V texture coordinate direction. Together with normals and tangents, they form the tangent-space basis (TBN matrix).

The binormal is typically computed as: binormal = cross(normal, tangent) * handedness

Used for:

  • Normal mapping (constructing TBN matrix)
  • Tangent-space calculations
  • Surface flow effects
  • Oriented texture mapping

Outputs:

  • Output 1: Full binormal vector (vec3, normalized)
  • Output 2: X component (float)
  • Output 3: Y component (float)
  • Output 4: Z component (float)

Example ​

typescript
const tangent = new VertexTangentNode();
const normal = new VertexNormalNode();
const binormal = new VertexBinormalNode();

// Use for normal mapping transformation
const normalMap = new TextureSampleNode();
const tbnTransform = new TransformNode();
tbnTransform.connectInput(1, normalMap, 1);
tbnTransform.connectInput(2, tbnMatrixNode, 1);

Extends ​

Constructors ​

Constructor ​

new VertexBinormalNode(): VertexBinormalNode

Defined in: libs/scene/src/utility/blueprint/material/inputs.ts:835

Creates a new vertex binormal node

Returns ​

VertexBinormalNode

Remarks ​

Initializes with 4 output slots: full binormal and individual X, Y, Z components.

Overrides ​

BaseGraphNode.constructor

Properties ​

_inputs ​

protected _inputs: GraphNodeInput[]

Defined in: libs/scene/src/utility/blueprint/node.ts:336

Internal storage for input slot definitions

Inherited from ​

BaseGraphNode._inputs

_outputs ​

protected _outputs: GraphNodeOutput[]

Defined in: libs/scene/src/utility/blueprint/node.ts:338

Internal storage for output slot definitions

Inherited from ​

BaseGraphNode._outputs

_error ​

protected _error: string

Defined in: libs/scene/src/utility/blueprint/node.ts:340

Internal storage for error message

Inherited from ​

BaseGraphNode._error

Accessors ​

isUniform ​

Get Signature ​

get isUniform(): boolean

Defined in: libs/scene/src/utility/blueprint/node.ts:357

Whether this node contains uniform value/texture

Returns ​

boolean

Whether this node has uniform value

Inherited from ​

BaseGraphNode.isUniform

paramName ​

Get Signature ​

get paramName(): string

Defined in: libs/scene/src/utility/blueprint/node.ts:363

Uniform parameter name

Returns ​

string

Uniform parameter name

Inherited from ​

BaseGraphNode.paramName

inputs ​

Get Signature ​

get inputs(): GraphNodeInput[]

Defined in: libs/scene/src/utility/blueprint/node.ts:380

Gets the input slot definitions array

Returns ​

GraphNodeInput[]

Array of input slot definitions

Inherited from ​

BaseGraphNode.inputs

outputs ​

Get Signature ​

get outputs(): GraphNodeOutput[]

Defined in: libs/scene/src/utility/blueprint/node.ts:384

Gets the output slot definitions array

Returns ​

GraphNodeOutput[]

Array of output slot definitions

Inherited from ​

BaseGraphNode.outputs

error ​

Get Signature ​

get error(): string

Defined in: libs/scene/src/utility/blueprint/node.ts:388

Gets the current error message

Returns ​

string

Set Signature ​

set error(str): void

Defined in: libs/scene/src/utility/blueprint/node.ts:391

Current error message, empty string if no error

Parameters ​
str ​

string

Returns ​

void

Current error message, empty string if no error

Inherited from ​

BaseGraphNode.error

Methods ​

on() ​

on<K>(type, listener, context?): void

Defined in: libs/base/dist/index.d.ts:630

IEventTarget.on

Type Parameters ​

K ​

K extends "changed"

Parameters ​

type ​

K

listener ​

EventListener<{ changed: []; }, K>

context? ​

unknown

Returns ​

void

Inherited from ​

BaseGraphNode.on

once() ​

once<K>(type, listener, context?): void

Defined in: libs/base/dist/index.d.ts:634

IEventTarget.once

Type Parameters ​

K ​

K extends "changed"

Parameters ​

type ​

K

listener ​

EventListener<{ changed: []; }, K>

context? ​

unknown

Returns ​

void

Inherited from ​

BaseGraphNode.once

off() ​

off<K>(type, listener?, context?): void

Defined in: libs/base/dist/index.d.ts:638

IEventTarget.off

Type Parameters ​

K ​

K extends "changed"

Parameters ​

type ​

K

listener? ​

EventListener<{ changed: []; }>

context? ​

unknown

Returns ​

void

Inherited from ​

BaseGraphNode.off

dispatchEvent() ​

dispatchEvent<K>(type, ...args): void

Defined in: libs/base/dist/index.d.ts:642

IEventTarget.dispatchEvent

Type Parameters ​

K ​

K extends "changed"

Parameters ​

type ​

K

args ​

...object[K]

Returns ​

void

Inherited from ​

BaseGraphNode.dispatchEvent

toString() ​

toString(): string

Defined in: libs/scene/src/utility/blueprint/material/inputs.ts:849

Generates a string representation of this node

Returns ​

string

'vertex binormal'

Overrides ​

BaseGraphNode.toString

getSerializationCls() ​

static getSerializationCls(): object

Defined in: libs/scene/src/utility/blueprint/material/inputs.ts:857

Gets the serialization descriptor for this node type

Returns ​

object

Serialization class descriptor

ctor ​

ctor: typeof VertexBinormalNode = VertexBinormalNode

name ​

name: string = 'VertexBinormalNode'

getProps() ​

getProps(): any[]

Returns ​

any[]

validate() ​

protected validate(): string

Defined in: libs/scene/src/utility/blueprint/material/inputs.ts:874

Validates the node state

Returns ​

string

Empty string (always valid)

Remarks ​

Vertex binormal nodes are always valid as they have no inputs.

Overrides ​

BaseGraphNode.validate

getType() ​

protected getType(id): "vec3" | "float"

Defined in: libs/scene/src/utility/blueprint/material/inputs.ts:883

Gets the output type for a specific output slot

Parameters ​

id ​

number

The output slot ID

Returns ​

"vec3" | "float"

'float' for individual component outputs (id > 1), 'vec3' for full binormal

Overrides ​

BaseGraphNode.getType

getOutputType() ​

getOutputType(id): string

Defined in: libs/scene/src/utility/blueprint/node.ts:376

Gets the output type for a specific output slot

Parameters ​

id ​

number

The output slot ID

Returns ​

string

The type name of the output

Remarks ​

Default implementation delegates to the abstract getType() method. Can be overridden for more complex type logic.

Inherited from ​

BaseGraphNode.getOutputType

check() ​

check(): void

Defined in: libs/scene/src/utility/blueprint/node.ts:413

Validates the node and updates error state

Returns ​

void

Remarks ​

Calls the validate() method and stores the result in _error. Emits a 'changed' event if the error state changes.

Inherited from ​

BaseGraphNode.check

reset() ​

reset(): void

Defined in: libs/scene/src/utility/blueprint/node.ts:422

Clears the error state

Returns ​

void

Remarks ​

Sets _error to an empty string.

Inherited from ​

BaseGraphNode.reset

setInput() ​

setInput(id, node, inputId): void

Defined in: libs/scene/src/utility/blueprint/node.ts:443

Connects an input slot to another node's output

Parameters ​

id ​

number

The input slot ID to connect

node ​

BaseGraphNode

The source node to connect from

inputId ​

number

The output slot ID of the source node

Returns ​

void

Throws ​

Error if the input slot with the given ID doesn't exist

Example ​

typescript
const addNode = new AddNode();
const constantNode = new ConstantNode(5.0);

// Connect constantNode's output 0 to addNode's input 0
addNode.setInput(0, constantNode, 0);

Inherited from ​

BaseGraphNode.setInput

Released under the MIT License.

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