WebSocketLEDClient/index.html at master · emmiebyte/WebSocketLEDClient · GitHub

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<!DOCTYPE html>
<html>

<head>
	<title>Guten Tag</title>
	<meta charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<style>
		body, html { height:100%; }
		body {
			margin:0;
		}
		canvas{
			position:absolute;
		}
	</style>

	<script id="shader-vs" type="x-webgl-shader/x-vertex">
		uniform mat3 uTransformToClipSpace;

		attribute vec2 aPosition;
		attribute float aR;
		attribute vec3 aColor;

		varying vec3 vColor;

		void main(void) {
			vec2 p = aPosition;
			vec2 pos = (uTransformToClipSpace * vec3(aPosition, 1.0)).xy;

			float radius = aR;
			vColor = aColor;

			gl_Position = vec4(pos, 0.0, 1.0);
			gl_PointSize = radius * 2.0;
		}
	</script>

	<script id="shader-fs" type="x-webgl-shader/x-fragment">
		varying mediump vec3 vColor;

		void main(void) {
			const lowp float ALPHA = 1.00;

			lowp vec2 pos = gl_PointCoord - vec2(0.5, 0.5);
			lowp float dist_squared = dot(pos, pos);
			lowp float alpha;

			if (dist_squared < 0.25) {
				alpha = ALPHA;
			} else {
				alpha = 0.0;
			}

			gl_FragColor = vec4(vColor, alpha);
		}
	</script>
</head>

<body id="body" style = "margin:0 ;background: black">
	<canvas id="cvs" style="height:33%"></canvas>
	<canvas id="canvas"></canvas>
	<script src="https://luksab.github.io/JSLib/JSLib.js"></script>
	<script src="https://luksab.github.io/JSLib/JSColor.js"></script>
	<script src="WebGlLED.js"></script>
</body>

</html>