Globe particle 'Screensaver' effect

-=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- (c) WidthPadding Industries 1987 0\|554\|0 -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=-
SoCoder -> Snippet Home -> Graphical Effects

Pakz	Created : 07 May 2024 Edited : 07 May 2024 System : Cross Platform Language : Javascript Globe particle 'Screensaver' effect Effect made using a 3d rotating cross brush
View on YouTube A effect I started working on yesterday. Particle brush and alpha using a 3d rotating cross. The edges of the cross draw ovals creating a spherical effect. It can draw several nice effects. There are a lot of random variables. I store these with effects that look interesting for later use. The system here could be used for movie or video game (weapon) effects. <!DOCTYPE html> <html> <head> <title>3D Line Rotation</title> <style> canvas { border: 1px solid black; background-color: black; } </style> </head> <body bgcolor="black"> <canvas id="canvas" width="400" height="400"></canvas> <script> const canvas = document.getElementById('canvas'); const ctx = canvas.getContext('2d'); var sp = [] var lines = [ { x1: -50, y1: 0, z1: 0, x2: 50, y2: 0, z2: 0 }, { x1: 0, y1: -50, z1: 0, x2: 0, y2: 50, z2: 0 }, { x1: 0, y1: 0, z1: -50, x2: 0, y2: 0, z2: 50 } ]; let angleX = 0; let angleY = 0; let angleZ = 0; function rotateX(angle) { angleX += angle; } function rotateY(angle) { angleY += angle; } function rotateZ(angle) { angleZ += angle; } function drawLines() { //ctx.clearRect(0, 0, canvas.width, canvas.height); const centerX = 64//canvas.width / 2; const centerY = 64//canvas.height / 2; const cosX = Math.cos(angleX); const sinX = Math.sin(angleX); const cosY = Math.cos(angleY); const sinY = Math.sin(angleY); const cosZ = Math.cos(angleZ); const sinZ = Math.sin(angleZ); const transform = (x, y, z) => { const rotatedX = x * cosY * cosZ + y * (sinX * sinY * cosZ - cosX * sinZ) + z * (cosX * sinY * cosZ + sinX * sinZ); const rotatedY = x * cosY * sinZ + y * (sinX * sinY * sinZ + cosX * cosZ) + z * (cosX * sinY * sinZ - sinX * cosZ); const rotatedZ = -x * sinY + y * sinX * cosY + z * cosX * cosY; return { x: rotatedXaaa, y: rotatedYaaa, z: rotatedZaaa }; }; sp = [] lines.forEach(line => { if(Math.random()<0.000001){ line.x2=Math.random()25+25 line.y2=Math.random()25+25 line.z2=Math.random()25+25 line.x1=Math.random()25+25 line.y1=Math.random()25+25 line.z1=Math.random()25+25 } const point1 = transform(line.x1, line.y1, line.z1); const point2 = transform(line.x2, line.y2, line.z2); //ctx.beginPath(); //ctx.moveTo(centerX + point1.x, centerY + point1.y); //ctx.lineTo(centerX + point2.x, centerY + point2.y); //ctx.stroke(); sp.push({x:centerX + point1.x,y: centerY + point1.y,z:Math.floor(point1.z)}) sp.push({x:centerX + point2.x,y: centerY + point2.y,z:Math.floor(point2.z)}) }); } var mod1 = 16 var mod2 = 0.2 var aa = 1.805305 var bb = 0.7575207 var cc = 8.2607202 var dd = 1.1298946 var ee = 0.041617264 var mod1 = 16 var mod2 = 0.2 var aa = 1.77724 var bb = 1.89534 var cc = 22.68321 var dd = 1.096245 var ee = 0.017222 var mod1 = 16 var mod2 = 0.2 var aa = 1.77724 var bb = 1.89534 var cc = 22.68321 var dd = 1.096245 var ee = 0.017222 var aaa=1 var bbb=0.005 canvas.width=window.innerWidth canvas.height=window.innerHeight function animate() { ctx.save() var scaleX = window.innerWidth / 400; var scaleY = window.innerHeight / 400; ctx.scale(scaleX3, scaleY3); aaa+=bbb if(aaa>1 \|\| aaa<0.6)bbb=-bbb if(Math.random()<0.01)aa=Math.random()2 if(Math.random()<0.01)bb=Math.random()2 if(Math.random()<0.01)cc=Math.random()16+8 if(Math.random()<0.01)dd=Math.random()+0.25 if(Math.random()<0.01)ee=Math.random()/30+0.01 //mod1+=(mod2) //if(mod1<10 \|\| mod1>12)mod2=-mod2 ctx.globalAlpha=ee2//0.05//075//0.175 ctx.fillStyle = "black" ctx.fillRect(0,0,canvas.width,canvas.height) rotateX(0.01); rotateY(0.02); rotateZ(0.03); drawLines(); for(var z2=0;z2<Math.PI2;z2+=Math.PI/aa){ for(var z3=0;z3<Math.PI2;z3+=Math.PI/bb){ for(var z=0;z<Math.PI2;z+=Math.PI/cc){ rotateX(z); rotateY(z2); rotateZ(z3); drawLines(); ctx.fillStyle="rgb(255,160,20)" ctx.globalAlpha=ee10 for(var i=0;i<sp.length;i+=1){ var s =( (50 - sp[i].z)/5)+8 //ctx.fillRect(sp[i].x,sp[i].y,s,s) ctx.beginPath(); ctx.arc(sp[i].x, sp[i].y, (s/2)/((z+dd)mod1), 0, 2 * Math.PI); // Full circle //ctx.fillStyle = "red"; ctx.fill(); } rotateX(-z); rotateY(-z2); rotateZ(-z3); }}} ctx.restore() requestAnimationFrame(animate); } animate(); </script> </body> </html> --v

Comments
Tuesday, 07 May 2024, 03:39
Jayenkai	Neat effect.. I reckon you could probably do something like what I'm doing with VidGen, but for generating animated backgrounds that people can use in their YouTube videos and things.
Tuesday, 07 May 2024, 04:05
Pakz	Yeah. It has that look. My idea is actually to try and learn to do those triple a video game effects. And learn to understand how to program certain visuals. I was maybe planning to program a minimal painting app for the browser today. With some sliders where the user would be able to draw maybe moons and planets and suns and such. Might be a interesting 3d brush this cross 3d shape.
Wednesday, 08 May 2024, 00:05
Pakz	I recorded another 1.5 hours of footage last evening. Prospecting sections of the output. Trying to tweak, add variables. I discovered a javascript blur setting. As background screens on title screens with some of the effects settings that get randomly created would fit too. Sometimes very cool and usable effects pass by. I need to mod the interface to record and store variables. Some googling told me this is called VFX. The effect might be in the category of Magic shields and the like. If rendered inside of a video game. As a effect system t would be fun? View on YouTube First though, watching hours of marketing and other educational video's and listening to other books. Why make everything and have no income out of it?
Wednesday, 08 May 2024, 00:48
Jayenkai	Yeah, that last bit is the crux of it all, isn't it! Good luck with this, though, it looks neat.

Globe particle 'Screensaver' effect

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