GLInstancedBufferAttribute
A class that extends GLBufferAttribute to handle instanced buffer attributes.
This class was specifically created to allow updating instanced buffer attributes during the onBeforeRender callback,
providing an efficient way to modify the buffer data dynamically before rendering.
Extends
unknown
Constructors
new GLInstancedBufferAttribute()
new GLInstancedBufferAttribute(
gl,type,itemSize,elementSize,array,meshPerAttribute):GLInstancedBufferAttribute
Parameters
• gl: WebGL2RenderingContext
The WebGL2RenderingContext used to create the buffer.
• type: number
The type of data in the attribute.
• itemSize: number
The number of elements per attribute.
• elementSize: 1 | 2 | 4
The size of individual elements in the array.
• array: TypedArray
The data array that holds the attribute values.
• meshPerAttribute: number = 1
The number of meshes that share the same attribute data.
Returns
Overrides
GLBufferAttribute.constructor
Defined in
core/utils/GLInstancedBufferAttribute.ts:35
Properties
array
array:
TypedArray
The data array that holds the attribute values.
Defined in
core/utils/GLInstancedBufferAttribute.ts:20
isGLInstancedBufferAttribute
isGLInstancedBufferAttribute:
boolean=true
Indicates if this is an isGLInstancedBufferAttribute.
Defined in
core/utils/GLInstancedBufferAttribute.ts:12
meshPerAttribute
meshPerAttribute:
number
The number of meshes that share the same attribute data.
Defined in
core/utils/GLInstancedBufferAttribute.ts:16
Methods
update()
update(
renderer,count):void
Updates the buffer data.
This method is designed to be called during the onBeforeRender callback.
It ensures that the attribute data is updated just before the rendering process begins.
Parameters
• renderer: WebGLRenderer
The WebGLRenderer used to render the scene.
• count: number
The number of elements to update in the buffer.
Returns
void