Motion of a molecule

Developer
Alex Permyakov
Size
2,776 Kb
Views
40,480
  1. Motion of a molecule Previews
  2. Motion of a molecule HTML Codes
  3. Motion of a molecule CSS Codes
  4. Motion of a molecule JS Codes

How do I make an motion of a molecule?

Another experiment with glsl shaders.. What is a motion of a molecule? How do you make a motion of a molecule? This script and codes were developed by Alex Permyakov on 27 August 2022, Saturday.

Motion of a molecule Previews
IQ Test

Motion of a molecule - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Motion of a molecule</title> <style> /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */ * { margin: 0; padding: 0;
} </style> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body> <script id="sf" type="x-shader/x-fragment">
precision highp float;
uniform float time;
uniform vec2 mouse;
uniform vec2 resolution;
float ball(vec2 p, float fx, float fy, float ax, float ay) { vec2 r = vec2(p.x + cos(time * fx) * ax, p.y + sin(time * fy) * ay); return 0.09 / length(r);
}
void main(void) { vec2 q = gl_FragCoord.xy / resolution.xy; vec2 p = -1.0 + 2.0 * q; p.x	*= resolution.x / resolution.y; float col = 0.0; col += ball(p, 1.0, 2.0, 0.1, 0.2); col += ball(p, 1.5, 2.5, 0.2, 0.3); col += ball(p, 2.0, 3.0, 0.3, 0.4); col += ball(p, 2.5, 3.5, 0.4, 0.5); col += ball(p, 3.0, 4.0, 0.5, 0.6); col += ball(p, 1.5, 0.5, 0.6, 0.7); gl_FragColor = vec4(col, col * 0.3, col, 1.0);
}
</script>
<script id="sv" type="x-shader/x-vertex"> attribute vec4 vPosition; void main (void) { gl_Position = vPosition; }
</script>
<canvas></canvas> <script src="js/index.js"></script>
</body>
</html>

Motion of a molecule - Script Codes CSS Codes

* { margin: 0; padding: 0;
}

Motion of a molecule - Script Codes JS Codes

var canvas = document.querySelector('canvas'); canvas.width = window.innerWidth; canvas.height = window.innerHeight; var ut, st = Date.now(), um, mouseX = 0, mouseY = 0; function initShaders (gl, vertexShaderId, fragmentShaderId) { var vertexEl = document.querySelector(vertexShaderId); var vertexShader = gl.createShader(gl.VERTEX_SHADER); gl.shaderSource(vertexShader, vertexEl.text); gl.compileShader(vertexShader); var fragmentEl = document.querySelector(fragmentShaderId); var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER); gl.shaderSource(fragmentShader, fragmentEl.text); gl.compileShader(fragmentShader); var program = gl.createProgram(); gl.attachShader(program, vertexShader); gl.attachShader(program, fragmentShader); gl.linkProgram(program); gl.useProgram(program); return program; } function initGraphics () { gl = canvas.getContext('webgl'); var width = canvas.width; var height = canvas.height; gl.viewport(0, 0, width, height); canvas.addEventListener('mousemove', function (e) { mouseX = e.pageX / canvas.width; mouseY = e.pageY / canvas.height; }, false); var program = initShaders(gl, '#sv', '#sf'); var buffer = gl.createBuffer(); gl.bindBuffer(gl.ARRAY_BUFFER, buffer); gl.bufferData( gl.ARRAY_BUFFER, new Float32Array([-1, 1, -1, -1, 1, -1, 1, 1]), gl.STATIC_DRAW ); var vPosition = gl.getAttribLocation(program, 'vPosition'); gl.vertexAttribPointer(vPosition, 2, gl.FLOAT, false, 0, 0); gl.enableVertexAttribArray(vPosition); ut = gl.getUniformLocation(program, 'time'); um = gl.getUniformLocation(program, 'mouse'); var resolution = new Float32Array([canvas.width, canvas.height]); gl.uniform2fv(gl.getUniformLocation(program, 'resolution'), resolution); } function render () { gl.uniform1f(ut, (Date.now() - st) / 1000); gl.uniform2fv(um, new Float32Array([mouseX, mouseY])); gl.drawArrays(gl.TRIANGLE_FAN, 0, 4); requestAnimationFrame(render); } initGraphics(); render();
Motion of a molecule - Script Codes
Motion of a molecule - Script Codes
Home Page Home
Developer Alex Permyakov
Username alexdevp
Uploaded August 27, 2022
Rating 4.5
Size 2,776 Kb
Views 40,480
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