"Interleaved" means that multiple attributes, possibly of different types, (e.g., position, normal, uv, color) are packed into a single array buffer.
An introduction into interleaved arrays can be found here: Interleaved array basics
webgl / buffergeometry / points / interleaved
array -- A typed array with a shared buffer. Stores the geometry data.
stride -- The number of typed-array elements per vertex.
A typed array with a shared buffer. Stores the geometry data.
The number of typed-array elements per vertex.
Gives the total number of elements in the array.
Object containing offset and count.
Default is 0.
Default is -1.
A version number, incremented every time the needsUpdate property is set to true.
Default is false. Setting this to true increments version.
Defines the intended usage pattern of the data store for optimization purposes. Corresponds to the usage parameter of WebGLRenderingContext.bufferData().
Copies another InterleavedBuffer to this InterleavedBuffer.
Copies data from attribute[index2] to array[index1].
value - The source (typed) array.
offset - The offset into the target array at which to begin writing values from the source array. Default is 0.
Stores multiple values in the buffer, reading input values from a specified array.
Creates a clone of this InterleavedBuffer.
Set usage to value.
For more info on how to obtain the source code of this module see this page.