Pipelines have a boot handler now.

src/renderer/webgl/WebGLPipeline.js

@@ -238,6 +238,19 @@ var WebGLPipeline = new Class({
         this.active = false;
     },
 
+    /**
+     * Called when the Game has fully booted and the Renderer has finished setting up.
+     * 
+     * By this stage all Game level systems are now in place and you can perform any final
+     * tasks that the pipeline may need that relied on game systems such as the Texture Manager.
+     *
+     * @method Phaser.Renderer.WebGL.WebGLPipeline#boot
+     * @since 3.11.0
+     */
+    boot: function ()
+    {
+    },
+
     /**
      * Adds a description of vertex attribute to the pipeline
      *

src/renderer/webgl/WebGLRenderer.js

@@ -519,9 +519,26 @@ var WebGLRenderer = new Class({
         this.setBlendMode(CONST.BlendModes.NORMAL);
         this.resize(this.width, this.height);
 
+        this.game.events.once('ready', this.boot, this);
+
         return this;
     },
 
+    /**
+     * Internal boot handler. Calls 'boot' on each pipeline.
+     *
+     * @method Phaser.Renderer.WebGL.WebGLRenderer#boot
+     * @private
+     * @since 3.11.0
+     */
+    boot: function ()
+    {
+        for (var pipelineName in this.pipelines)
+        {
+            this.pipelines[pipelineName].boot();
+        }
+    },
+
     /**
      * [description]
      *