diff --git a/src/core/BufferAttribute.js b/src/core/BufferAttribute.js
index 8d2495e8c4104e..1a80841b430a80 100644
--- a/src/core/BufferAttribute.js
+++ b/src/core/BufferAttribute.js
@@ -9,6 +9,12 @@ const _vector2 = /*@__PURE__*/ new Vector2();
 
 class BufferAttribute {
 
+	/**
+	 *
+	 * @param {TypedArray} array
+	 * @param {*} itemSize
+	 * @param {*} normalized
+	 */
 	constructor( array, itemSize, normalized = false ) {
 
 		if ( Array.isArray( array ) ) {
diff --git a/src/renderers/webgl/WebGLAttributes.js b/src/renderers/webgl/WebGLAttributes.js
index e810f967465665..deb01c1458ee9f 100644
--- a/src/renderers/webgl/WebGLAttributes.js
+++ b/src/renderers/webgl/WebGLAttributes.js
@@ -1,9 +1,23 @@
+import {BufferAttribute} from 'three' ;
+
+/**
+ *
+ * @param {WebGL2RenderingContext} gl
+ * @param {*} capabilities
+ * @returns
+ */
 function WebGLAttributes( gl, capabilities ) {
 
 	const isWebGL2 = capabilities.isWebGL2;
 
 	const buffers = new WeakMap();
 
+	/**
+	 *
+	 * @param {BufferAttribute} attribute
+	 * @param {number} bufferType gl.ARRAY_BUFFER | gl.ELEMENT_ARRAY_BUFFER
+	 * @returns
+	 */
 	function createBuffer( attribute, bufferType ) {
 
 		const array = attribute.array;
@@ -81,6 +95,12 @@ function WebGLAttributes( gl, capabilities ) {
 
 	}
 
+	/**
+	 *
+	 * @param {WebGLBuffer} buffer
+	 * @param {BufferAttribute} attribute
+	 * @param {number} bufferType  gl.ARRAY_BUFFER | gl.ELEMENT_ARRAY_BUFFER
+	 */
 	function updateBuffer( buffer, attribute, bufferType ) {
 
 		const array = attribute.array;
@@ -118,6 +138,11 @@ function WebGLAttributes( gl, capabilities ) {
 
 	//
 
+	/**
+	 *
+	 * @param {BufferAttribute} attribute
+	 * @returns
+	 */
 	function get( attribute ) {
 
 		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
@@ -126,6 +151,10 @@ function WebGLAttributes( gl, capabilities ) {
 
 	}
 
+	/**
+	 *
+	 * @param {BufferAttribute} attribute
+	 */
 	function remove( attribute ) {
 
 		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;