konva
Version:
HTML5 2d canvas library.
17 lines (16 loc) • 744 B
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Noise = void 0;
const Factory_1 = require("../Factory");
const Node_1 = require("../Node");
const Validators_1 = require("../Validators");
const Noise = function (imageData) {
const amount = this.noise() * 255, data = imageData.data, nPixels = data.length, half = amount / 2;
for (let i = 0; i < nPixels; i += 4) {
data[i + 0] += half - 2 * half * Math.random();
data[i + 1] += half - 2 * half * Math.random();
data[i + 2] += half - 2 * half * Math.random();
}
};
exports.Noise = Noise;
Factory_1.Factory.addGetterSetter(Node_1.Node, 'noise', 0.2, (0, Validators_1.getNumberValidator)(), Factory_1.Factory.afterSetFilter);