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📄 FlakesTexture.js

📊 Analysis Summary

Metric	Count
🧱 Classes	1
📊 Variables & Constants	6

📚 Table of Contents

• Variables & Constants
• Classes

🛠️ File Location:

📂 examples/jsm/textures/FlakesTexture.js

Variables & Constants

Name	Type	Kind	Value	Exported
x	number	let/var	Math.random() * width	✗
y	number	let/var	Math.random() * height	✗
r	number	let/var	Math.random() * 3 + 3	✗
nx	number	let/var	Math.random() * 2 - 1	✗
ny	number	let/var	Math.random() * 2 - 1	✗
nz	number	let/var	1.5	✗

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Classes

FlakesTexture

Class Code

class FlakesTexture {

    /**
     * Generates a new flakes texture image. The result is a canvas
     * that can be used as an input for {@link CanvasTexture}.
     *
     * @param {number} [width=512] - The width of the image.
     * @param {number} [height=512] - The height of the image.
     * @return {HTMLCanvasElement} The generated image.
     */
    constructor( width = 512, height = 512 ) {

        const canvas = document.createElement( 'canvas' );
        canvas.width = width;
        canvas.height = height;

        const context = canvas.getContext( '2d' );
        context.fillStyle = 'rgb(127,127,255)';
        context.fillRect( 0, 0, width, height );

        for ( let i = 0; i < 4000; i ++ ) {

            const x = Math.random() * width;
            const y = Math.random() * height;
            const r = Math.random() * 3 + 3;

            let nx = Math.random() * 2 - 1;
            let ny = Math.random() * 2 - 1;
            let nz = 1.5;

            const l = Math.sqrt( nx * nx + ny * ny + nz * nz );

            nx /= l; ny /= l; nz /= l;

            context.fillStyle = 'rgb(' + ( nx * 127 + 127 ) + ',' + ( ny * 127 + 127 ) + ',' + ( nz * 255 ) + ')';
            context.beginPath();
            context.arc( x, y, r, 0, Math.PI * 2 );
            context.fill();

        }

        return canvas;

    }

}

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