#

API Docs for: 1.4.3
Show: Inherited Protected Private Deprecated

# File: src/pixi/filters/GrayFilter.js

    /**
     * @author Mat Groves http://matgroves.com/ @Doormat23
     */

    /**
     *
     * This turns your displayObjects to black and white.
     * @class GrayFilter
     * @contructor
     */
    PIXI.GrayFilter = function()
    {
        PIXI.AbstractFilter.call( this );

        this.passes = [this];

        // set the uniforms
        this.uniforms = {
            gray: {type: '1f', value: 1},
        };

        this.fragmentSrc = [
            'precision mediump float;',
            'varying vec2 vTextureCoord;',
            'varying vec4 vColor;',
            'uniform sampler2D uSampler;',
            'uniform float gray;',

            'void main(void) {',
            '   gl_FragColor = texture2D(uSampler, vTextureCoord);',
            '   gl_FragColor.rgb = mix(gl_FragColor.rgb, vec3(0.2126*gl_FragColor.r + 0.7152*gl_FragColor.g + 0.0722*gl_FragColor.b), gray);',
         //   '   gl_FragColor = gl_FragColor;',
            '}'
        ];
    };

    PIXI.GrayFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
    PIXI.GrayFilter.prototype.constructor = PIXI.GrayFilter;

    /**
    The strength of the gray. 1 will make the object black and white, 0 will make the object its normal color
    @property gray
    */
    Object.defineProperty(PIXI.GrayFilter.prototype, 'gray', {
        get: function() {
            return this.uniforms.gray.value;
        },
        set: function(value) {
            this.uniforms.gray.value = value;
        }
    });