Created
November 26, 2014 19:13
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/** | |
* @author Mat Groves http://matgroves.com/ @Doormat23 | |
*/ | |
/** | |
* This inverts your Display Objects colors. | |
* | |
* @class InvertFilter | |
* @extends AbstractFilter | |
* @constructor | |
*/ | |
PIXI.InvertFilter = function() | |
{ | |
PIXI.AbstractFilter.call( this ); | |
this.passes = [this]; | |
// set the uniforms | |
this.uniforms = { | |
invert: {type: '1f', value: 1} | |
}; | |
this.fragmentSrc = [ | |
'precision mediump float;', | |
'varying vec2 vTextureCoord;', | |
'varying vec4 vColor;', | |
'uniform float invert;', | |
'uniform sampler2D uSampler;', | |
'void main(void) {', | |
' gl_FragColor = texture2D(uSampler, vTextureCoord);', | |
' gl_FragColor.rgb = mix( (vec3(1)-gl_FragColor.rgb) * gl_FragColor.a, gl_FragColor.rgb, 1.0 - invert);', | |
//' gl_FragColor.rgb = gl_FragColor.rgb * gl_FragColor.a;', | |
// ' gl_FragColor = gl_FragColor * vColor;', | |
'}' | |
]; | |
}; | |
PIXI.InvertFilter.prototype = Object.create( PIXI.AbstractFilter.prototype ); | |
PIXI.InvertFilter.prototype.constructor = PIXI.InvertFilter; | |
/** | |
* The strength of the invert. 1 will fully invert the colors, 0 will make the object its normal color | |
* @property invert | |
* @type Number | |
*/ | |
Object.defineProperty(PIXI.InvertFilter.prototype, 'invert', { | |
get: function() { | |
return this.uniforms.invert.value; | |
}, | |
set: function(value) { | |
this.uniforms.invert.value = value; | |
} | |
}); |
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