Dweets awesomed by u/richev

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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Current theme challenge: #Opposites

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rnbw

function u(t) {

for(c.width^=i=0;i++<34;){x.fillStyle=`hsl(${280-i*4},99%,40%,3%)`;x.arc(S((p=i+(0^-t*12)+S(i)/7))*17*i+960,C(p)*17*i+540,0,0,0);x.fill()}

Feb 22 2019 3:41 PM UTC

}// 138/140

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vertigo 🌀

u/rnbw

(i'm back at this again!)
u/sigveseb

Nice colors!
u/DataMeta

Great stuff.
u/CalSch

Cool! I think it would look cooler if it was at a higher frame rate. Is the frame rate low because of the style? Or is it a performance issue.

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rodrigo.siqueira

remix of d/12434 by u/katkip

function u(t) {

t||(a=b=0)
for(i=8000;i--;)x.fillRect(560+b*C(a),540+b*S(a),1,1),a+=.847*C(t+5*a)+C(t),b+=.002

Feb 20 2019 9:25 PM UTC

}// 94/140

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The Eye of Bifurcation #bifurcation

u/geb

All I see is the number triangle https://www.dwitter.net/d/10794

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rodrigo.siqueira

remix of d/12434 by u/katkip

function u(t) {

t||(a=b=0)
for(i=2e3;i--;)x.fillRect(960+b*C(a),540+b*S(a),1,1),a+=1.8*C(2.6*a)+C(t/4+.009),b+=.002

Feb 20 2019 9:24 PM UTC

}// 99/140

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The Flower of Bifurcation #bifurcation

u/katkip

this is #cute #math

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katkip

function u(t) {

t||(a=0,b=1);for(i=999;i--;)x.fillRect(960+b*C(a),540+b*S(a),5,5),a+=C(a*b/99),b+=.01

Feb 20 2019 5:22 PM UTC

}// 85/140

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Bifurcation diagram in one radial line. #bifurcation

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spaceman_blanc

remix of d/12383 by u/DataMeta

function u(t) {

c.style.background=R();for(i=325;i--;)x.fillStyle=`hsla(${i},99%,50%,.02)`,k=912*S(t/i),x.fillRect(960+k*1.8*T(i^t),524+k/C(i),i/9+9,i/9+9)

Feb 19 2019 8:49 AM UTC

}// 139/140

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2001

u/geb

#background
u/spaceman_blanc

To any remixers, you can drop the "c.style.background=R();" from the start and you will have 24 chars to play with.
u/katkip

Nice
u/katkip

Not really u/spaceman, on upload, the canvas will be reseted to white
u/spaceman_blanc

yeah youre right, didnt realise that. I mean you could still do something cool with 24 chars and white back ground i guess

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katkip

function u(t) {

c.style.background='#bbf';q=t*20;x.fillStyle=R(q,q*2,q);for(i=0;i<213;i++)x.fillRect(i*9,+C(Math.random())*250+t*99,9,2e3)

Feb 18 2019 2:34 PM UTC

}// 122/140

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Grass

u/katkip

#landscape #nature

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katkip

remix of d/12407 by u/katkip

function u(t) {

x.globalAlpha=.02;x.fillRect(0,0,2e3,2e3);t||(X=10,Y=540);for(i=999;i--;){X+=5,Y+=C(X*Y+t)*X/99,x.clearRect(X,Y,5,X/99);if(X>1920)X=9,Y=540}

Feb 18 2019 2:28 PM UTC

}// 140/140

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katkip

function u(t) {

x.globalAlpha=.02;x.fillRect(0,0,2e3,2e3);t||(X=10,Y=540);for(i=999;i--;){X+=5,Y+=C(X*t+t)*9,x.clearRect(X,Y,5,X/99);if(X>1920)X=9,Y=540}

Feb 18 2019 2:28 PM UTC

}// 137/140

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DataMeta

function u(t) {

c.style.background=R();for(i=255;i--;)x.fillStyle=`hsla(${i},99%,50%,.02)`,k=512*S(t+i),x.fillRect(960+k*1.8*T(i^t),524+k*C(i),i/9+9,i/9+9)

Feb 16 2019 1:56 AM UTC

}// 139/140

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u/13thptr

Really beautiful

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rodrigo.siqueira

remix of d/12356 by u/pavel

function u(t) {

c.width^=f=(X,Y,r,a,s,d=1)=>r>2&&x.lineTo(X,Y)|f(X+C(a-=s)*r,Y+S(a)*r,r-r/20,a,s,-d)|f(X,Y,r/3,t,s*d)
f(900,400,99,1,S(t/8)/4)|x.stroke()

Feb 15 2019 7:07 PM UTC

}// 137/140

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Moving plant #spiral

u/katkip

Nice

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