te attribute], [param:Number i1], [param:Vector3 i2], [param:Number i3], [param:Vector3 barycoord], [param:Vector3 target] )
		</h3>
		<p>
			[page:BufferAttribute attribute] - The attribute to interpolate.<br />
			p1 - Index of first vertex.<br />
			p2 - Index of second vertex.<br />
			p3 - Index of third vertex.<br />
			barycoord - The barycoordinate value to use to interpolate.<br />
			[page:Vector target] — Result will be copied into this Vector.<br /><br />

			Returns the value barycentrically 