fabric/dist/src/filters/shaders/blur.mjs

Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.

const fragmentSource = "\n    precision highp float;\n    uniform sampler2D uTexture;\n    uniform vec2 uDelta;\n    varying vec2 vTexCoord;\n    const float nSamples = 15.0;\n    vec3 v3offset = vec3(12.9898, 78.233, 151.7182);\n    float random(vec3 scale) {\n      /* use the fragment position for a different seed per-pixel */\n      return fract(sin(dot(gl_FragCoord.xyz, scale)) * 43758.5453);\n    }\n    void main() {\n      vec4 color = vec4(0.0);\n      float total = 0.0;\n      float offset = random(v3offset);\n      for (float t = -nSamples; t <= nSamples; t++) {\n        float percent = (t + offset - 0.5) / nSamples;\n        float weight = 1.0 - abs(percent);\n        color += texture2D(uTexture, vTexCoord + uDelta * percent) * weight;\n        total += weight;\n      }\n      gl_FragColor = color / total;\n    }\n  ";

export { fragmentSource };
//# sourceMappingURL=blur.mjs.map