Prism

Developer
Size
2,843 Kb
Views
42,504

How do I make an prism?

I generate a random field of triangles into an empty SVG. Using Greensock's TweenMax I animate each point within the field. Using TweenMax's "ticker" object, I add an event listener to update the field when something changes.. What is a prism? How do you make a prism? This script and codes were developed by Elliot Geno on 11 September 2022, Sunday.

Prism Previews

Prism - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Prism</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <body> <svg id="mesh" width="400" height="400"> </svg>
</body> <script src='https://cdnjs.cloudflare.com/ajax/libs/gsap/1.11.4/TweenMax.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Prism - Script Codes CSS Codes

body{ background-color:#666666; margin: 0px;
}

Prism - Script Codes JS Codes

var columns=10;
var rows=10;
var numCells=rows*columns;
var numTriangles=numCells*2;
var numPoints=(rows+1)*(columns+1);
var mesh;
var meshWidth;
var meshHeight;
var points=[];
var triangles=[];
var amountThreshold=.5;
var amountX;
var amountY;
var halfAmountX;
var halfAmountY;
var minDelay=.1;
var maxDelay=7;
var delayRange=maxDelay-minDelay;
var minDuration=1.1;
var maxDuration=2;
var durationRange=maxDuration-minDuration;
window.onload = function () { mesh=document.getElementById("mesh"); meshWidth=mesh.getAttribute("width"); meshHeight=mesh.getAttribute("height"); amountX=(meshWidth/columns)*amountThreshold; amountY=(meshHeight/rows)*amountThreshold; halfAmountX=amountX*.5; halfAmountY=amountY*.5; createPoints(); createTriangles(); draw(); TweenMax.ticker.addEventListener("tick", draw, this, true, 1);
};
function createPoints(){ for(var i=0;i<numPoints;i++){ var c=i%(columns+1); var r=parseInt((i/numPoints)*(rows+1)); var x=meshWidth*(c/(columns)); var y=meshWidth*(r/(rows)); var fixedX=x==0||x==meshWidth?true:false; var fixedY=y==0||y==meshHeight?true:false; var targetX=fixedX?x:((Math.random()*amountX)-halfAmountX)+x; var targetY=fixedY?y:((Math.random()*amountY)-halfAmountY)+y; var point= {x:targetX,y:targetY,originX:x,originY:y,fixedX:fixedX,fixedY:fixedY}; points.push(point); if(!point.fixedX||!point.fixedY){ tweenPoint(point); } }
}
function createTriangles(){ var columnOffset=columns+1; for(var i=0;i<numCells;i++){ var c=i%columns; var r=parseInt((i/numCells)*rows); var tlIndex=c+(r*columnOffset); var trIndex=c+(r*columnOffset)+1; var blIndex=tlIndex+columnOffset; var brIndex=trIndex+columnOffset; var tl=points[tlIndex]; var tr=points[trIndex]; var bl=points[blIndex]; var br=points[brIndex]; var points1=[tl.x,tl.y,tr.x,tr.y,bl.x,bl.y]; var points2=[tr.x,tr.y,br.x,br.y,bl.x,bl.y]; var triangle1=addElement("polygon",mesh,{points:points1.toString(),fill:randomColor()}); var triangle2=addElement("polygon",mesh,{points:points2.toString(),fill:randomColor()}); triangles.push({triangle:triangle1,points:[tl,tr,bl]}); triangles.push({triangle:triangle2,points:[tr,br,bl]}); }
}
function tweenPoint(point){ var targetX=point.fixedX?point.originX:((Math.random()*amountX)-halfAmountX)+point.originX; var targetY=point.fixedY?point.originY:((Math.random()*amountY)-halfAmountY)+point.originY; TweenMax.to(point,minDuration+(Math.random()*durationRange),{delay:minDelay+(Math.random()*delayRange),x:targetX,y:targetY,ease:Elastic.easeOut,onComplete:tweenPoint,onCompleteParams:[point]})
}
function draw(){ for(var i=0;i<numTriangles;i++){ var triangle=triangles[i].triangle; var points=triangles[i].points; var p1=points[0]; var p2=points[1]; var p3=points[2]; var pointList=[p1.x,p1.y,p2.x,p2.y,p3.x,p3.y]; triangle.setAttribute("points",pointList); }
}
function addElement(type,parent,attributes){ var element=document.createElementNS("http://www.w3.org/2000/svg",type); for (var property in attributes) { element.setAttribute(property,attributes[property]); } parent.appendChild(element); return element;
}
function randomColor(){ return "#"+Math.floor(Math.random()*16777215).toString(16);
}
Prism - Script Codes
Prism - Script Codes
Home Page Home
Developer Elliot Geno
Username pyrografix
Uploaded September 11, 2022
Rating 3.5
Size 2,843 Kb
Views 42,504
Do you need developer help for Prism?

Find the perfect freelance services for your business! Fiverr's mission is to change how the world works together. Fiverr connects businesses with freelancers offering digital services in 500+ categories. Find Developer!

Elliot Geno (pyrografix) Script Codes
Create amazing captions with AI!

Jasper is the AI Content Generator that helps you and your team break through creative blocks to create amazing, original content 10X faster. Discover all the ways the Jasper AI Content Platform can help streamline your creative workflows. Start For Free!