needsPreviousBoneMatrices( builder ) {

		const mrt = builder.renderer.getMRT();

		return ( mrt && mrt.has( 'velocity' ) ) || getDataFromObject( builder.object ).useVelocity === true;

	}
Returns `true` if bone matrices from the previous frame are required. Relevant
when computing motion vectors with {@link VelocityNode}.

@param {NodeBuilder} builder - The current node builder.
@return {boolean} Whether bone matrices from the previous frame are required or not.