Buffer Attribute Usage Constants

The usage constants can be used to provide a hint to the API regarding how the geometry buffer attribute will be used in order to optimize performance.

Code Example


		const geometry = new THREE.BufferGeometry();
		const positionAttribute = new THREE.BufferAttribute( array, 3 , false );
		positionAttribute.setUsage( THREE.DynamicDrawUsage );
		geometry.setAttribute( 'position', positionAttribute );

Examples

[example:webgl_buffergeometry_drawrange materials / buffergeometry / drawrange ]

Geometry Usage


		THREE.StaticDrawUsage
		THREE.DynamicDrawUsage
		THREE.StreamDrawUsage

		THREE.StaticReadUsage
		THREE.DynamicReadUsage
		THREE.StreamReadUsage

		THREE.StaticCopyUsage
		THREE.DynamicCopyUsage
		THREE.StreamCopyUsage

For more detailed information on each of these constants see [link:https://www.khronos.org/opengl/wiki/Buffer_Object#Buffer_Object_Usage this OpenGL documentation].

Source

[link:https://github.com/mrdoob/three.js/blob/master/src/constants.js src/constants.js]