Fixed issue when initializing pixishader from filter manager

Author: bitnenfer

src/pixi/renderers/webgl/shaders/PixiShader.js

@@ -73,11 +73,6 @@ PIXI.PixiShader = function(gl)
 PIXI.PixiShader.prototype.constructor = PIXI.PixiShader;
 
 PIXI.PixiShader.prototype.initMultitexShader = function () {
-    if (this.fragmentSrc != null) {
-        // Can't run multi-texture batching with filters
-        this.initDefaultShader();
-        return;
-    }
     var gl = this.gl;
     this.MAX_TEXTURES = gl.getParameter(gl.MAX_TEXTURE_IMAGE_UNITS);
     var dynamicIfs = '\tif (vTextureIndex == 0.0) gl_FragColor = texture2D(uSamplerArray[0], vTextureCoord) * vColor;\n'
@@ -225,9 +220,9 @@ PIXI.PixiShader.prototype.initDefaultShader = function () {
 *
 * @method init
 */
-PIXI.PixiShader.prototype.init = function()
+PIXI.PixiShader.prototype.init = function(usingFilter)
 {
-    if (PIXI._enableMultiTextureToggle) {
+    if (PIXI._enableMultiTextureToggle && !usingFilter) {
         this.initMultitexShader();
     } else {
         this.initDefaultShader();

src/pixi/renderers/webgl/utils/FilterTexture.js

@@ -36,10 +36,6 @@ function _CreateFramebuffer(gl, width, height, scaleMode, textureUnit) {
     if(fbStatus !== gl.FRAMEBUFFER_COMPLETE) {
         console.error('Incomplete GL framebuffer. ', _fbErrors[fbStatus]);
     }
-   // gl.bindTexture(gl.TEXTURE_2D, null);
-   // gl.bindRenderbuffer(gl.RENDERBUFFER, null);
-   // gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-
     framebuffer.width = width;
     framebuffer.height = height;
     framebuffer.targetTexture = colorBuffer;

src/pixi/renderers/webgl/utils/WebGLFilterManager.js

@@ -354,7 +354,7 @@ PIXI.WebGLFilterManager.prototype.applyFilterPass = function(filter, filterArea,
 
         shader.fragmentSrc = filter.fragmentSrc;
         shader.uniforms = filter.uniforms;
-        shader.init();
+        shader.init(true);
 
         filter.shaders[gl.id] = shader;
     }