A class containing utility functions for [page:BufferGeometry BufferGeometry] instances.
geometries -- Array of [page:BufferGeometry BufferGeometry] instances.
useGroups -- Whether groups should be generated for the merged geometry or not.
Merges a set of geometries into a single instance. All geometries must have compatible attributes.
If merge does not succeed, the method returns null.
attributes -- Array of [page:BufferAttribute BufferAttribute] instances.
Merges a set of attributes into a single instance. All attributes must have compatible properties
and types, and [page:InterleavedBufferAttribute InterleavedBufferAttributes] are not supported. If merge does not succeed, the method
returns null.
attributes -- Array of [page:BufferAttribute BufferAttribute] instances.
Interleaves a set of attributes and returns a new array of corresponding attributes that share
a single InterleavedBuffer instance. All attributes must have compatible types. If merge does not
succeed, the method returns null.
geometry -- Instance of [page:BufferGeometry BufferGeometry] to estimate the memory use of.
Returns the amount of bytes used by all attributes to represent the geometry.
geometry -- Instance of [page:BufferGeometry BufferGeometry] to merge the vertices of.
tolerance -- The maximum allowable difference between vertex attributes to merge. Defaults to 1e-4.
Returns a new [page:BufferGeometry BufferGeometry] with vertices for which all similar vertex attributes
(within tolerance) are merged.
geometry -- Instance of [page:BufferGeometry BufferGeometry].
drawMode -- The draw mode of the given geometry.
Returns a new indexed [page:BufferGeometry BufferGeometry] based on the [page:DrawModes THREE.TrianglesDrawMode] draw mode. This mode
corresponds to the *gl.TRIANGLES* WebGL primitive.
[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/utils/BufferGeometryUtils.js examples/jsm/utils/BufferGeometryUtils.js]