diff --git a/src/ol/render/webgl/CircleReplay.js b/src/ol/render/webgl/CircleReplay.js
index 49b194b54a..9ef8ce8e98 100644
--- a/src/ol/render/webgl/CircleReplay.js
+++ b/src/ol/render/webgl/CircleReplay.js
@@ -12,7 +12,7 @@ import _ol_render_webgl_circlereplay_defaultshader_Locations_ from '../webgl/cir
 import WebGLReplay from '../webgl/Replay.js';
 import _ol_render_webgl_ from '../webgl.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Buffer_ from '../../webgl/Buffer.js';
+import WebGLBuffer from '../../webgl/Buffer.js';
 
 /**
  * @constructor
@@ -157,10 +157,10 @@ WebGLCircleReplay.prototype.drawCircle = function(circleGeometry, feature) {
  **/
 WebGLCircleReplay.prototype.finish = function(context) {
   // create, bind, and populate the vertices buffer
-  this.verticesBuffer = new _ol_webgl_Buffer_(this.vertices);
+  this.verticesBuffer = new WebGLBuffer(this.vertices);
 
   // create, bind, and populate the indices buffer
-  this.indicesBuffer = new _ol_webgl_Buffer_(this.indices);
+  this.indicesBuffer = new WebGLBuffer(this.indices);
 
   this.startIndices.push(this.indices.length);
 
diff --git a/src/ol/render/webgl/ImageReplay.js b/src/ol/render/webgl/ImageReplay.js
index 19f812c930..ed6076745a 100644
--- a/src/ol/render/webgl/ImageReplay.js
+++ b/src/ol/render/webgl/ImageReplay.js
@@ -3,7 +3,7 @@
  */
 import {getUid, inherits} from '../../index.js';
 import WebGLTextureReplay from '../webgl/TextureReplay.js';
-import _ol_webgl_Buffer_ from '../../webgl/Buffer.js';
+import WebGLBuffer from '../../webgl/Buffer.js';
 
 /**
  * @constructor
@@ -80,12 +80,12 @@ WebGLImageReplay.prototype.finish = function(context) {
   this.hitDetectionGroupIndices.push(this.indices.length);
 
   // create, bind, and populate the vertices buffer
-  this.verticesBuffer = new _ol_webgl_Buffer_(this.vertices);
+  this.verticesBuffer = new WebGLBuffer(this.vertices);
 
   const indices = this.indices;
 
   // create, bind, and populate the indices buffer
-  this.indicesBuffer = new _ol_webgl_Buffer_(indices);
+  this.indicesBuffer = new WebGLBuffer(indices);
 
   // create textures
   /** @type {Object.<string, WebGLTexture>} */
diff --git a/src/ol/render/webgl/LineStringReplay.js b/src/ol/render/webgl/LineStringReplay.js
index ccdf19a898..2c82962e2c 100644
--- a/src/ol/render/webgl/LineStringReplay.js
+++ b/src/ol/render/webgl/LineStringReplay.js
@@ -14,7 +14,7 @@ import WebGLReplay from '../webgl/Replay.js';
 import _ol_render_webgl_linestringreplay_defaultshader_ from '../webgl/linestringreplay/defaultshader.js';
 import _ol_render_webgl_linestringreplay_defaultshader_Locations_ from '../webgl/linestringreplay/defaultshader/Locations.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Buffer_ from '../../webgl/Buffer.js';
+import WebGLBuffer from '../../webgl/Buffer.js';
 
 /**
  * @constructor
@@ -404,10 +404,10 @@ WebGLLineStringReplay.prototype.getCurrentIndex = function() {
  **/
 WebGLLineStringReplay.prototype.finish = function(context) {
   // create, bind, and populate the vertices buffer
-  this.verticesBuffer = new _ol_webgl_Buffer_(this.vertices);
+  this.verticesBuffer = new WebGLBuffer(this.vertices);
 
   // create, bind, and populate the indices buffer
-  this.indicesBuffer = new _ol_webgl_Buffer_(this.indices);
+  this.indicesBuffer = new WebGLBuffer(this.indices);
 
   this.startIndices.push(this.indices.length);
 
diff --git a/src/ol/render/webgl/PolygonReplay.js b/src/ol/render/webgl/PolygonReplay.js
index 433ae5634c..df776b8525 100644
--- a/src/ol/render/webgl/PolygonReplay.js
+++ b/src/ol/render/webgl/PolygonReplay.js
@@ -18,7 +18,7 @@ import Stroke from '../../style/Stroke.js';
 import LinkedList from '../../structs/LinkedList.js';
 import RBush from '../../structs/RBush.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Buffer_ from '../../webgl/Buffer.js';
+import WebGLBuffer from '../../webgl/Buffer.js';
 
 /**
  * @constructor
@@ -834,10 +834,10 @@ WebGLPolygonReplay.prototype.drawPolygon = function(polygonGeometry, feature) {
  **/
 WebGLPolygonReplay.prototype.finish = function(context) {
   // create, bind, and populate the vertices buffer
-  this.verticesBuffer = new _ol_webgl_Buffer_(this.vertices);
+  this.verticesBuffer = new WebGLBuffer(this.vertices);
 
   // create, bind, and populate the indices buffer
-  this.indicesBuffer = new _ol_webgl_Buffer_(this.indices);
+  this.indicesBuffer = new WebGLBuffer(this.indices);
 
   this.startIndices.push(this.indices.length);
 
diff --git a/src/ol/render/webgl/TextReplay.js b/src/ol/render/webgl/TextReplay.js
index 44fc733c72..0029df007d 100644
--- a/src/ol/render/webgl/TextReplay.js
+++ b/src/ol/render/webgl/TextReplay.js
@@ -10,7 +10,7 @@ import _ol_render_replay_ from '../replay.js';
 import _ol_render_webgl_ from '../webgl.js';
 import WebGLTextureReplay from '../webgl/TextureReplay.js';
 import AtlasManager from '../../style/AtlasManager.js';
-import _ol_webgl_Buffer_ from '../../webgl/Buffer.js';
+import WebGLBuffer from '../../webgl/Buffer.js';
 
 /**
  * @constructor
@@ -306,10 +306,10 @@ WebGLTextReplay.prototype.finish = function(context) {
   this.hitDetectionGroupIndices = this.groupIndices;
 
   // create, bind, and populate the vertices buffer
-  this.verticesBuffer = new _ol_webgl_Buffer_(this.vertices);
+  this.verticesBuffer = new WebGLBuffer(this.vertices);
 
   // create, bind, and populate the indices buffer
-  this.indicesBuffer = new _ol_webgl_Buffer_(this.indices);
+  this.indicesBuffer = new WebGLBuffer(this.indices);
 
   // create textures
   /** @type {Object.<string, WebGLTexture>} */
diff --git a/src/ol/render/webgl/TextureReplay.js b/src/ol/render/webgl/TextureReplay.js
index 7035c785a1..c84d54b622 100644
--- a/src/ol/render/webgl/TextureReplay.js
+++ b/src/ol/render/webgl/TextureReplay.js
@@ -8,7 +8,7 @@ import _ol_render_webgl_texturereplay_defaultshader_ from '../webgl/texturerepla
 import _ol_render_webgl_texturereplay_defaultshader_Locations_ from '../webgl/texturereplay/defaultshader/Locations.js';
 import WebGLReplay from '../webgl/Replay.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Context_ from '../../webgl/Context.js';
+import WebGLContext from '../../webgl/Context.js';
 
 /**
  * @constructor
@@ -257,7 +257,7 @@ WebGLTextureReplay.prototype.createTextures = function(textures, images, texture
     if (uid in texturePerImage) {
       texture = texturePerImage[uid];
     } else {
-      texture = _ol_webgl_Context_.createTexture(
+      texture = WebGLContext.createTexture(
         gl, image, _ol_webgl_.CLAMP_TO_EDGE, _ol_webgl_.CLAMP_TO_EDGE);
       texturePerImage[uid] = texture;
     }
diff --git a/src/ol/renderer/webgl/ImageLayer.js b/src/ol/renderer/webgl/ImageLayer.js
index d6f52ad253..21d342a6ad 100644
--- a/src/ol/renderer/webgl/ImageLayer.js
+++ b/src/ol/renderer/webgl/ImageLayer.js
@@ -12,7 +12,7 @@ import RendererType from '../Type.js';
 import WebGLLayerRenderer from '../webgl/Layer.js';
 import _ol_transform_ from '../../transform.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Context_ from '../../webgl/Context.js';
+import WebGLContext from '../../webgl/Context.js';
 
 /**
  * @constructor
@@ -88,7 +88,7 @@ WebGLImageLayerRenderer.prototype.createTexture_ = function(image) {
   const imageElement = image.getImage();
   const gl = this.mapRenderer.getGL();
 
-  return _ol_webgl_Context_.createTexture(
+  return WebGLContext.createTexture(
     gl, imageElement, _ol_webgl_.CLAMP_TO_EDGE, _ol_webgl_.CLAMP_TO_EDGE);
 };
 
diff --git a/src/ol/renderer/webgl/Layer.js b/src/ol/renderer/webgl/Layer.js
index 9c60d8b200..8d767e14ae 100644
--- a/src/ol/renderer/webgl/Layer.js
+++ b/src/ol/renderer/webgl/Layer.js
@@ -11,8 +11,8 @@ import _ol_renderer_webgl_defaultmapshader_Locations_ from '../webgl/defaultmaps
 import _ol_transform_ from '../../transform.js';
 import {create, fromTransform} from '../../vec/mat4.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Buffer_ from '../../webgl/Buffer.js';
-import _ol_webgl_Context_ from '../../webgl/Context.js';
+import WebGLBuffer from '../../webgl/Buffer.js';
+import WebGLContext from '../../webgl/Context.js';
 
 /**
  * @constructor
@@ -35,7 +35,7 @@ const WebGLLayerRenderer = function(mapRenderer, layer) {
    * @private
    * @type {ol.webgl.Buffer}
    */
-  this.arrayBuffer_ = new _ol_webgl_Buffer_([
+  this.arrayBuffer_ = new WebGLBuffer([
     -1, -1, 0, 0,
     1, -1, 1, 0,
     -1, 1, 0, 1,
@@ -116,7 +116,7 @@ WebGLLayerRenderer.prototype.bindFramebuffer = function(frameState, framebufferD
       /** @type {ol.PostRenderFunction} */ (postRenderFunction)
     );
 
-    const texture = _ol_webgl_Context_.createEmptyTexture(
+    const texture = WebGLContext.createEmptyTexture(
       gl, framebufferDimension, framebufferDimension);
 
     const framebuffer = gl.createFramebuffer();
diff --git a/src/ol/renderer/webgl/Map.js b/src/ol/renderer/webgl/Map.js
index bb35235993..8fad0bdd18 100644
--- a/src/ol/renderer/webgl/Map.js
+++ b/src/ol/renderer/webgl/Map.js
@@ -18,7 +18,7 @@ import SourceState from '../../source/State.js';
 import LRUCache from '../../structs/LRUCache.js';
 import PriorityQueue from '../../structs/PriorityQueue.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Context_ from '../../webgl/Context.js';
+import WebGLContext from '../../webgl/Context.js';
 import ContextEventType from '../../webgl/ContextEventType.js';
 
 
@@ -90,7 +90,7 @@ const WebGLMapRenderer = function(container, map) {
    * @private
    * @type {ol.webgl.Context}
    */
-  this.context_ = new _ol_webgl_Context_(this.canvas_, this.gl_);
+  this.context_ = new WebGLContext(this.canvas_, this.gl_);
 
   listen(this.canvas_, ContextEventType.LOST,
     this.handleWebGLContextLost, this);
diff --git a/src/ol/renderer/webgl/TileLayer.js b/src/ol/renderer/webgl/TileLayer.js
index 572549e47a..d92d4bebfc 100644
--- a/src/ol/renderer/webgl/TileLayer.js
+++ b/src/ol/renderer/webgl/TileLayer.js
@@ -18,7 +18,7 @@ import _ol_renderer_webgl_tilelayershader_Locations_ from '../webgl/tilelayersha
 import {toSize} from '../../size.js';
 import _ol_transform_ from '../../transform.js';
 import _ol_webgl_ from '../../webgl.js';
-import _ol_webgl_Buffer_ from '../../webgl/Buffer.js';
+import WebGLBuffer from '../../webgl/Buffer.js';
 
 /**
  * @constructor
@@ -53,7 +53,7 @@ const WebGLTileLayerRenderer = function(mapRenderer, tileLayer) {
    * @private
    * @type {ol.webgl.Buffer}
    */
-  this.renderArrayBuffer_ = new _ol_webgl_Buffer_([
+  this.renderArrayBuffer_ = new WebGLBuffer([
     0, 0, 0, 1,
     1, 0, 1, 1,
     0, 1, 0, 0,
diff --git a/src/ol/webgl/Buffer.js b/src/ol/webgl/Buffer.js
index 6fbaff5c98..80be8acad8 100644
--- a/src/ol/webgl/Buffer.js
+++ b/src/ol/webgl/Buffer.js
@@ -3,13 +3,22 @@
  */
 import _ol_webgl_ from '../webgl.js';
 
+/**
+ * @enum {number}
+ */
+const BufferUsage = {
+  STATIC_DRAW: _ol_webgl_.STATIC_DRAW,
+  STREAM_DRAW: _ol_webgl_.STREAM_DRAW,
+  DYNAMIC_DRAW: _ol_webgl_.DYNAMIC_DRAW
+};
+
 /**
  * @constructor
  * @param {Array.<number>=} opt_arr Array.
  * @param {number=} opt_usage Usage.
  * @struct
  */
-const _ol_webgl_Buffer_ = function(opt_arr, opt_usage) {
+const WebGLBuffer = function(opt_arr, opt_usage) {
 
   /**
    * @private
@@ -21,8 +30,7 @@ const _ol_webgl_Buffer_ = function(opt_arr, opt_usage) {
    * @private
    * @type {number}
    */
-  this.usage_ = opt_usage !== undefined ?
-    opt_usage : _ol_webgl_Buffer_.Usage_.STATIC_DRAW;
+  this.usage_ = opt_usage !== undefined ? opt_usage : BufferUsage;
 
 };
 
@@ -30,7 +38,7 @@ const _ol_webgl_Buffer_ = function(opt_arr, opt_usage) {
 /**
  * @return {Array.<number>} Array.
  */
-_ol_webgl_Buffer_.prototype.getArray = function() {
+WebGLBuffer.prototype.getArray = function() {
   return this.arr_;
 };
 
@@ -38,18 +46,8 @@ _ol_webgl_Buffer_.prototype.getArray = function() {
 /**
  * @return {number} Usage.
  */
-_ol_webgl_Buffer_.prototype.getUsage = function() {
+WebGLBuffer.prototype.getUsage = function() {
   return this.usage_;
 };
 
-
-/**
- * @enum {number}
- * @private
- */
-_ol_webgl_Buffer_.Usage_ = {
-  STATIC_DRAW: _ol_webgl_.STATIC_DRAW,
-  STREAM_DRAW: _ol_webgl_.STREAM_DRAW,
-  DYNAMIC_DRAW: _ol_webgl_.DYNAMIC_DRAW
-};
-export default _ol_webgl_Buffer_;
+export default WebGLBuffer;
diff --git a/src/ol/webgl/Context.js b/src/ol/webgl/Context.js
index 1533eb1ddd..018d4cf7a1 100644
--- a/src/ol/webgl/Context.js
+++ b/src/ol/webgl/Context.js
@@ -18,7 +18,7 @@ import ContextEventType from '../webgl/ContextEventType.js';
  * @param {HTMLCanvasElement} canvas Canvas.
  * @param {WebGLRenderingContext} gl GL.
  */
-const _ol_webgl_Context_ = function(canvas, gl) {
+const WebGLContext = function(canvas, gl) {
 
   /**
    * @private
@@ -91,7 +91,7 @@ const _ol_webgl_Context_ = function(canvas, gl) {
 
 };
 
-inherits(_ol_webgl_Context_, Disposable);
+inherits(WebGLContext, Disposable);
 
 
 /**
@@ -101,7 +101,7 @@ inherits(_ol_webgl_Context_, Disposable);
  * @param {number} target Target.
  * @param {ol.webgl.Buffer} buf Buffer.
  */
-_ol_webgl_Context_.prototype.bindBuffer = function(target, buf) {
+WebGLContext.prototype.bindBuffer = function(target, buf) {
   const gl = this.getGL();
   const arr = buf.getArray();
   const bufferKey = String(getUid(buf));
@@ -130,7 +130,7 @@ _ol_webgl_Context_.prototype.bindBuffer = function(target, buf) {
 /**
  * @param {ol.webgl.Buffer} buf Buffer.
  */
-_ol_webgl_Context_.prototype.deleteBuffer = function(buf) {
+WebGLContext.prototype.deleteBuffer = function(buf) {
   const gl = this.getGL();
   const bufferKey = String(getUid(buf));
   const bufferCacheEntry = this.bufferCache_[bufferKey];
@@ -144,7 +144,7 @@ _ol_webgl_Context_.prototype.deleteBuffer = function(buf) {
 /**
  * @inheritDoc
  */
-_ol_webgl_Context_.prototype.disposeInternal = function() {
+WebGLContext.prototype.disposeInternal = function() {
   unlistenAll(this.canvas_);
   const gl = this.getGL();
   if (!gl.isContextLost()) {
@@ -168,7 +168,7 @@ _ol_webgl_Context_.prototype.disposeInternal = function() {
 /**
  * @return {HTMLCanvasElement} Canvas.
  */
-_ol_webgl_Context_.prototype.getCanvas = function() {
+WebGLContext.prototype.getCanvas = function() {
   return this.canvas_;
 };
 
@@ -178,7 +178,7 @@ _ol_webgl_Context_.prototype.getCanvas = function() {
  * @return {WebGLRenderingContext} The rendering context.
  * @api
  */
-_ol_webgl_Context_.prototype.getGL = function() {
+WebGLContext.prototype.getGL = function() {
   return this.gl_;
 };
 
@@ -187,7 +187,7 @@ _ol_webgl_Context_.prototype.getGL = function() {
  * Get the frame buffer for hit detection.
  * @return {WebGLFramebuffer} The hit detection frame buffer.
  */
-_ol_webgl_Context_.prototype.getHitDetectionFramebuffer = function() {
+WebGLContext.prototype.getHitDetectionFramebuffer = function() {
   if (!this.hitDetectionFramebuffer_) {
     this.initHitDetectionFramebuffer_();
   }
@@ -201,7 +201,7 @@ _ol_webgl_Context_.prototype.getHitDetectionFramebuffer = function() {
  * @param {ol.webgl.Shader} shaderObject Shader object.
  * @return {WebGLShader} Shader.
  */
-_ol_webgl_Context_.prototype.getShader = function(shaderObject) {
+WebGLContext.prototype.getShader = function(shaderObject) {
   const shaderKey = String(getUid(shaderObject));
   if (shaderKey in this.shaderCache_) {
     return this.shaderCache_[shaderKey];
@@ -224,7 +224,7 @@ _ol_webgl_Context_.prototype.getShader = function(shaderObject) {
  * @param {ol.webgl.Vertex} vertexShaderObject Vertex shader.
  * @return {WebGLProgram} Program.
  */
-_ol_webgl_Context_.prototype.getProgram = function(
+WebGLContext.prototype.getProgram = function(
   fragmentShaderObject, vertexShaderObject) {
   const programKey =
       getUid(fragmentShaderObject) + '/' + getUid(vertexShaderObject);
@@ -245,7 +245,7 @@ _ol_webgl_Context_.prototype.getProgram = function(
 /**
  * FIXME empy description for jsdoc
  */
-_ol_webgl_Context_.prototype.handleWebGLContextLost = function() {
+WebGLContext.prototype.handleWebGLContextLost = function() {
   clear(this.bufferCache_);
   clear(this.shaderCache_);
   clear(this.programCache_);
@@ -259,7 +259,7 @@ _ol_webgl_Context_.prototype.handleWebGLContextLost = function() {
 /**
  * FIXME empy description for jsdoc
  */
-_ol_webgl_Context_.prototype.handleWebGLContextRestored = function() {
+WebGLContext.prototype.handleWebGLContextRestored = function() {
 };
 
 
@@ -267,12 +267,12 @@ _ol_webgl_Context_.prototype.handleWebGLContextRestored = function() {
  * Creates a 1x1 pixel framebuffer for the hit-detection.
  * @private
  */
-_ol_webgl_Context_.prototype.initHitDetectionFramebuffer_ = function() {
+WebGLContext.prototype.initHitDetectionFramebuffer_ = function() {
   const gl = this.gl_;
   const framebuffer = gl.createFramebuffer();
   gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer);
 
-  const texture = _ol_webgl_Context_.createEmptyTexture(gl, 1, 1);
+  const texture = WebGLContext.createEmptyTexture(gl, 1, 1);
   const renderbuffer = gl.createRenderbuffer();
   gl.bindRenderbuffer(gl.RENDERBUFFER, renderbuffer);
   gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, 1, 1);
@@ -297,7 +297,7 @@ _ol_webgl_Context_.prototype.initHitDetectionFramebuffer_ = function() {
  * @return {boolean} Changed.
  * @api
  */
-_ol_webgl_Context_.prototype.useProgram = function(program) {
+WebGLContext.prototype.useProgram = function(program) {
   if (program == this.currentProgram_) {
     return false;
   } else {
@@ -316,7 +316,7 @@ _ol_webgl_Context_.prototype.useProgram = function(program) {
  * @return {WebGLTexture} The texture.
  * @private
  */
-_ol_webgl_Context_.createTexture_ = function(gl, opt_wrapS, opt_wrapT) {
+WebGLContext.createTexture_ = function(gl, opt_wrapS, opt_wrapT) {
   const texture = gl.createTexture();
   gl.bindTexture(gl.TEXTURE_2D, texture);
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
@@ -343,9 +343,9 @@ _ol_webgl_Context_.createTexture_ = function(gl, opt_wrapS, opt_wrapT) {
  * @param {number=} opt_wrapT wrapT.
  * @return {WebGLTexture} The texture.
  */
-_ol_webgl_Context_.createEmptyTexture = function(
+WebGLContext.createEmptyTexture = function(
   gl, width, height, opt_wrapS, opt_wrapT) {
-  const texture = _ol_webgl_Context_.createTexture_(gl, opt_wrapS, opt_wrapT);
+  const texture = WebGLContext.createTexture_(gl, opt_wrapS, opt_wrapT);
   gl.texImage2D(
     gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE,
     null);
@@ -361,11 +361,11 @@ _ol_webgl_Context_.createEmptyTexture = function(
  * @param {number=} opt_wrapT wrapT.
  * @return {WebGLTexture} The texture.
  */
-_ol_webgl_Context_.createTexture = function(gl, image, opt_wrapS, opt_wrapT) {
-  const texture = _ol_webgl_Context_.createTexture_(gl, opt_wrapS, opt_wrapT);
+WebGLContext.createTexture = function(gl, image, opt_wrapS, opt_wrapT) {
+  const texture = WebGLContext.createTexture_(gl, opt_wrapS, opt_wrapT);
   gl.texImage2D(
     gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);
 
   return texture;
 };
-export default _ol_webgl_Context_;
+export default WebGLContext;
diff --git a/src/ol/webgl/Fragment.js b/src/ol/webgl/Fragment.js
index 8dc538c97a..e7f8f961d5 100644
--- a/src/ol/webgl/Fragment.js
+++ b/src/ol/webgl/Fragment.js
@@ -3,7 +3,7 @@
  */
 import {inherits} from '../index.js';
 import _ol_webgl_ from '../webgl.js';
-import _ol_webgl_Shader_ from '../webgl/Shader.js';
+import WebGLShader from '../webgl/Shader.js';
 
 /**
  * @constructor
@@ -12,10 +12,10 @@ import _ol_webgl_Shader_ from '../webgl/Shader.js';
  * @struct
  */
 const _ol_webgl_Fragment_ = function(source) {
-  _ol_webgl_Shader_.call(this, source);
+  WebGLShader.call(this, source);
 };
 
-inherits(_ol_webgl_Fragment_, _ol_webgl_Shader_);
+inherits(_ol_webgl_Fragment_, WebGLShader);
 
 
 /**
diff --git a/src/ol/webgl/Shader.js b/src/ol/webgl/Shader.js
index 0605c711b0..6e7f6fb491 100644
--- a/src/ol/webgl/Shader.js
+++ b/src/ol/webgl/Shader.js
@@ -9,7 +9,7 @@ import {FALSE} from '../functions.js';
  * @param {string} source Source.
  * @struct
  */
-const _ol_webgl_Shader_ = function(source) {
+const WebGLShader = function(source) {
 
   /**
    * @private
@@ -24,13 +24,13 @@ const _ol_webgl_Shader_ = function(source) {
  * @abstract
  * @return {number} Type.
  */
-_ol_webgl_Shader_.prototype.getType = function() {};
+WebGLShader.prototype.getType = function() {};
 
 
 /**
  * @return {string} Source.
  */
-_ol_webgl_Shader_.prototype.getSource = function() {
+WebGLShader.prototype.getSource = function() {
   return this.source_;
 };
 
@@ -38,5 +38,5 @@ _ol_webgl_Shader_.prototype.getSource = function() {
 /**
  * @return {boolean} Is animated?
  */
-_ol_webgl_Shader_.prototype.isAnimated = FALSE;
-export default _ol_webgl_Shader_;
+WebGLShader.prototype.isAnimated = FALSE;
+export default WebGLShader;
diff --git a/src/ol/webgl/Vertex.js b/src/ol/webgl/Vertex.js
index 8ed4a74e37..554324675d 100644
--- a/src/ol/webgl/Vertex.js
+++ b/src/ol/webgl/Vertex.js
@@ -3,7 +3,7 @@
  */
 import {inherits} from '../index.js';
 import _ol_webgl_ from '../webgl.js';
-import _ol_webgl_Shader_ from '../webgl/Shader.js';
+import WebGLShader from '../webgl/Shader.js';
 
 /**
  * @constructor
@@ -12,10 +12,10 @@ import _ol_webgl_Shader_ from '../webgl/Shader.js';
  * @struct
  */
 const _ol_webgl_Vertex_ = function(source) {
-  _ol_webgl_Shader_.call(this, source);
+  WebGLShader.call(this, source);
 };
 
-inherits(_ol_webgl_Vertex_, _ol_webgl_Shader_);
+inherits(_ol_webgl_Vertex_, WebGLShader);
 
 
 /**