52 lines
No EOL
1.7 KiB
JavaScript
52 lines
No EOL
1.7 KiB
JavaScript
//=============================================================================
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// CBR_picNoise.js
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// ----------------------------------------------------------------------------
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// (C)2023 COBRA
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// This software is released under the MIT License.
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// https://twitter.com/onarinin_san
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// ----------------------------------------------------------------------------
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//=============================================================================
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/*:ja
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*
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* @help オッサンが砂みたいに消える
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* 利用規約：なし
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* 用語：
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* 砂嵐→白と黒がチカチカなるヤツ
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* ノイズ→画像の一部分がバグみたいに表示されるヤツ
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*/
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PIXI.filters.breakFilter = function () {
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var fragmentSrc = [
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'precision lowp float;',
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'uniform sampler2D uSampler;',
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'varying vec2 vTextureCoord;',
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"uniform float key1;",
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"uniform float pxSize;",
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"float random (vec2 st) {",
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"return fract(sin(dot(floor(st.xy*pxSize)/pxSize, vec2(2.9,52.3)))*43718.341 * key1);",
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"}",
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'void main (void) {',
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"vec2 coord = vTextureCoord;",
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"vec2 st = vTextureCoord.xy;",
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"float hoge = random( st );",
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"if (key1 < fract(hoge)) {",//0-0.999乱数がkey未満だったら 0.1だと大部分が透明、0.9だとほぼそのまま
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"gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);",
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"} else {",
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"gl_FragColor = texture2D(uSampler, coord );",
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"}",
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'}'
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];
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PIXI.Filter.call(this,
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null, // vertex shader
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fragmentSrc.join('\n'), // fragment shader
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{t:0.0} // uniforms
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);
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};
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PIXI.filters.breakFilter.prototype = Object.create(PIXI.Filter.prototype);
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PIXI.filters.breakFilter.prototype.constructor = PIXI.filters.breakFilter; |