The BaseShader default vertex shader now includes the outTexCoord vec2 varying, mapped to be the same as that found in the pipeline shaders. Fix phaserjs#5120

Author: photonstorm

src/display/shader/BaseShader.js

@@ -9,16 +9,16 @@ var Class = require('../../utils/Class');
 /**
  * @classdesc
  * A BaseShader is a small resource class that contains the data required for a WebGL Shader to be created.
- * 
+ *
  * It contains the raw source code to the fragment and vertex shader, as well as an object that defines
  * the uniforms the shader requires, if any.
- * 
+ *
  * BaseShaders are stored in the Shader Cache, available in a Scene via `this.cache.shaders` and are referenced
  * by a unique key-based string. Retrieve them via `this.cache.shaders.get(key)`.
- * 
+ *
  * BaseShaders are created automatically by the GLSL File Loader when loading an external shader resource.
  * They can also be created at runtime, allowing you to use dynamically generated shader source code.
- * 
+ *
  * Default fragment and vertex source is used if not provided in the constructor, setting-up a basic shader,
  * suitable for debug rendering.
  *
@@ -66,10 +66,12 @@ var BaseShader = new Class({
                 'attribute vec2 inPosition;',
 
                 'varying vec2 fragCoord;',
+                'varying vec2 outTexCoord;',
 
                 'void main () {',
-                'gl_Position = uProjectionMatrix * uViewMatrix * vec4(inPosition, 1.0, 1.0);',
-                'fragCoord = vec2(inPosition.x, uResolution.y - inPosition.y);',
+                '   gl_Position = uProjectionMatrix * uViewMatrix * vec4(inPosition, 1.0, 1.0);',
+                '   fragCoord = vec2(inPosition.x, uResolution.y - inPosition.y);',
+                '   outTexCoord = vec2(inPosition.x / uResolution.x, fragCoord.y / uResolution.y);',
                 '}'
             ].join('\n');
         }