Perspective

Developer
Tristan
Size
2,894 Kb
Views
30,360
  1. Perspective Previews
  2. Perspective HTML Codes
  3. Perspective CSS Codes
  4. Perspective JS Codes

How do I make an perspective?

Playing with projecting rays through known points to achieve faux perspective.. What is a perspective? How do you make a perspective? This script and codes were developed by Tristan on 25 August 2022, Thursday.

Perspective Previews
IQ Test

Perspective - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Perspective</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Perspective - Script Codes CSS Codes

*{margin:0;padding:0;-moz-box-sizing:border-box;-webkit-box-sizing:border-box}
body{font-size:75%;background:#222;font-family:arial;padding:20px 0 0 20px}
canvas{border:1px solid #181818;display:block;box-shadow:0 0 10px #111}

Perspective - Script Codes JS Codes

var canvas, c, w, h, twoPI = Math.PI * 2, mX, mY, resize = true, mousemove = true, per = {};
window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a){window.setTimeout(a,1E3/60)}}();
window.onload = function(){ canvas = document.createElement('canvas') w = canvas.width = window.innerWidth - 40; h = canvas.height = window.innerHeight - 40; c = canvas.getContext('2d'); document.body.appendChild(canvas); !resize || window.addEventListener('resize', function(e){ w = canvas.width = window.innerWidth - 40; h = canvas.height = window.innerHeight - 40; P.reset();}); !mousemove || canvas.addEventListener('mousemove', function(e){ per.x = mX = e.pageX-20; per.y = mY = e.pageY-20; }); per = { x: w/2, y: h/2 }; var P = new Perspective(10, 10, 10);
} function Perspective(xc, yc, size){ var points = [], padding = 1.5; function init(xc, yc, size){ var halfX = w/2 - xc*size*padding/2, halfY = h/2 - yc*size*padding/2; for(var y = 1; y <= yc; y++){ for(var x = 1; x <= xc; x++){ points.push( { x: (x * size * padding) + halfX, y: (y * size * padding) + halfY, size: size, xd: Math.random() * 4 - 2, yd: Math.random() * 4 - 2 } ); } } mX = w/2; mY = h/2; } function update(){ for(var p = 0; p < points.length; p++){ points[p].x += points[p].xd; if(points[p].x >= w) points[p].xd *= -1; if(points[p].x <= 0) points[p].xd *= -1; points[p].y += points[p].yd; if(points[p].y >= h) points[p].yd *= -1; if(points[p].y <= 0) points[p].yd *= -1; } } function clear(){ c.save(); c.fillStyle = "rgba(0,64,128,0.7)"; c.fillRect(0,0,w,h); c.restore(); } function draw(){ c.save(); c.globalCompositeOperation = "lighter"; c.strokeStyle = "rgba(255,255,255,0.05)"; c.fillStyle = "rgba(0,255,255,0.05)"; for(var p = 0; p < points.length; p++){ c.beginPath(); var hsize = points[p].size / 2, x1 = points[p].x - hsize, y1 = points[p].y - hsize, x2 = points[p].x + hsize, y2 = points[p].y + hsize; c.moveTo(x1, y1); c.lineTo(x2, y1); c.lineTo(x2, y2); c.lineTo(x1, y2); c.closePath(); c.fill(); c.stroke(); var a1 = Math.atan2(y1 - per.y, x1 - per.x), a2 = Math.atan2(y1 - per.y, x2 - per.x), a3 = Math.atan2(y2 - per.y, x2 - per.x), a4 = Math.atan2(y2 - per.y, x1 - per.x); var xd = mX - points[p].x, yd = mY - points[p].y, dd = Math.sqrt(xd * xd + yd * yd)/5; c.beginPath(); c.moveTo(x1, y1); c.lineTo(x1 + Math.cos(a1) * dd, y1 + Math.sin(a1) * dd); c.lineTo(x2 + Math.cos(a2) * dd, y1 + Math.sin(a2) * dd); c.lineTo(x2, y1); c.closePath(); c.fill(); c.stroke(); c.beginPath(); c.moveTo(x2, y1); c.lineTo(x2 + Math.cos(a2) * dd, y1 + Math.sin(a2) * dd); c.lineTo(x2 + Math.cos(a3) * dd, y2 + Math.sin(a3) * dd); c.lineTo(x2, y2); c.closePath(); c.fill(); c.stroke(); c.beginPath(); c.moveTo(x2, y2); c.lineTo(x2 + Math.cos(a3) * dd, y2 + Math.sin(a3) * dd); c.lineTo(x1 + Math.cos(a4) * dd, y2 + Math.sin(a4) * dd); c.lineTo(x1, y2); c.closePath(); c.fill(); c.stroke(); c.beginPath(); c.moveTo(x1, y2); c.lineTo(x1 + Math.cos(a4) * dd, y2 + Math.sin(a4) * dd); c.lineTo(x1 + Math.cos(a1) * dd, y1 + Math.sin(a1) * dd); c.lineTo(x1, y1); c.closePath(); c.fill(); c.stroke(); c.beginPath(); c.moveTo(x1 + Math.cos(a1) * dd, y1 + Math.sin(a1) * dd); c.lineTo(x2 + Math.cos(a2) * dd, y1 + Math.sin(a2) * dd); c.lineTo(x2 + Math.cos(a3) * dd, y2 + Math.sin(a3) * dd); c.lineTo(x1 + Math.cos(a4) * dd, y2 + Math.sin(a4) * dd); c.closePath(); c.fill(); c.stroke(); } c.restore(); } function animate(){ update(); clear(); draw(); window.requestAnimFrame(animate); } this.reset = function(){ for(var p = 0; p < points.length; p++){ var halfX = w/2 - xc*size*padding/2, halfY = h/2 - yc*size*padding/2, p = 0; for(var y = 1; y <= yc; y++){ for(var x = 1; x <= xc; x++){ points[p].x = (x * size * padding) + halfX; points[p].y = (y * size * padding) + halfY; p++; } } } } init(xc, yc, size); window.requestAnimFrame(animate); }
Perspective - Script Codes
Perspective - Script Codes
Home Page Home
Developer Tristan
Username sinthetyc
Uploaded August 25, 2022
Rating 4
Size 2,894 Kb
Views 30,360
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