mirror of
https://github.com/photonstorm/phaser
synced 2024-11-24 05:33:35 +00:00
65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
/**
|
|
* Original author of PixelateFilter: Mat Groves http://matgroves.com/ @Doormat23
|
|
* adapted for Phaser.js
|
|
*/
|
|
|
|
/**
|
|
* This filter applies a pixelate effect making display objects appear 'blocky'
|
|
* @class PixelateFilter
|
|
* @contructor
|
|
*/
|
|
Phaser.Filter.Pixelate = function(game) {
|
|
|
|
Phaser.Filter.call(this, game);
|
|
|
|
this.passes = [this];
|
|
|
|
this.uniforms.invert = { type: '1f', value: 0 };
|
|
this.uniforms.pixelSize = { type: '2f', value: { x: 10, y: 10 } };
|
|
this.uniforms.dimensions = { type: '4fv', value: { x: 10000, y: 100, z: 10, w: 10 } };
|
|
|
|
this.fragmentSrc = [
|
|
|
|
"precision mediump float;",
|
|
"varying vec2 vTextureCoord;",
|
|
"varying vec4 vColor;",
|
|
"uniform vec2 testDim;",
|
|
"uniform vec4 dimensions;",
|
|
"uniform vec2 pixelSize;",
|
|
"uniform sampler2D uSampler;",
|
|
|
|
"void main(void)",
|
|
"{",
|
|
|
|
"vec2 coord = vTextureCoord;",
|
|
"vec2 size = dimensions.xy/pixelSize;",
|
|
"vec2 color = floor( ( vTextureCoord * size ) ) / size + pixelSize/dimensions.xy * 0.5;",
|
|
"gl_FragColor = texture2D(uSampler, color);",
|
|
"}"
|
|
];
|
|
};
|
|
|
|
Phaser.Filter.Pixelate.prototype = Object.create(Phaser.Filter.prototype);
|
|
Phaser.Filter.Pixelate.prototype.constructor = Phaser.Filter.Pixelate;
|
|
|
|
/**
|
|
* This a point that describes the size of the blocs. x is the width of the block and y is the the height
|
|
* @property size
|
|
* @type Point
|
|
*/
|
|
Object.defineProperty(Phaser.Filter.prototype, 'size', {
|
|
|
|
get: function() {
|
|
|
|
return this.uniforms.pixelSize.value;
|
|
|
|
},
|
|
|
|
set: function(value) {
|
|
|
|
this.dirty = true;
|
|
this.uniforms.pixelSize.value = value;
|
|
|
|
}
|
|
|
|
});
|