Dweets by u/kchplr

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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kchplr

remix of d/2938 by u/kchplr

function u(t) {

for(c.style='image-rendering:pixelated',c.width=i=130;i--;)for(j=70;j--;)x.fillRect(i,j,1,C(i*i*j*j*8+frame*8&768)<0)

Aug 9 2017 11:11 AM UTC

}// 117/140

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Same as the original but with c.style='image-rendering:pixelated' to look better and the same size

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kchplr

function u(t) {

x.fillStyle='#0001';for(x.fillRect(0,0,2e3,2e3),i=0;i<6.29;Y=S(i*2+t),X=(C(2*i)+C(t+i+Y)),x.clearRect(960+X*450,536+Y*500,20,9))i+=.002

Aug 5 2017 2:42 PM UTC

}// 135/140

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A glowy curve, inspired by the inverted colors of https://www.dwitter.net/d/3015 by Cantelope

u/kchplr

Noticed it is very slow in firefox, has lot of artefact on Safari and doesn't even render properly in stable Chrome. The only browser rendering it correctly is Chrome Canary. Oh, well.
u/kchplr

Here is a version which renders correctly on stable Chrome : for(x.fillStyle='rgba(0,0,0,.1)',x.fillRect(0,i=0,2e3,2e3);i<7;Y=S(i*2+t),X=(C(2*i)+C(t+i+Y)),x.clearRect(960+X*450,536+Y*500,20,9))i+=.002

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kchplr

function u(t) {

for(c.width|=0,i=3142,n=500;i--;Y=S(i/n*(2-(.5+S(t+V)|0))),X=C(S(t)+t+i/n),x.fillRect(960+X*n+V/X,550+Y*n+V*Y,4+V*X,5))V=(T(C(i+t)))**7

Aug 4 2017 10:05 AM UTC

}// 135/140

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kchplr

remix of d/2842 by u/alien

function u(t) {

c.width=120
for(j=0;j<68;j++)
for(i=0;i<120;i++){
q=(i*i*j*j*8+frame*8)&768
s=100*C(q)%255
s<0&&x.fillRect(i,j,1,1)}

Jul 24 2017 9:36 PM UTC

}// 117/140

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u/alien

:D!!!
u/Xen

95bytes for you: c.width=123;for(j=70;j--;)for(i=130;i--;s=C(q=(i*i*j*j*8+frame*9)&768)<0&&x.fillRect(i,j,1,1));
u/Xen

95bytes for you: c.width=123;for(j=70;j--;)for(i=130;i--;s=C(q=(i*i*j*j*8+frame*9)&768)<0&&x.fillRect(i,j,1,1));
u/kchplr

81bytes for me :p : for(c.width=i=130;i--;)for(j=70;j--;)x.fillRect(i,j,1,C(i*i*j*j*8+frame*8&768)<0)

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kchplr

function u(t) {

for(c.width|=0,i=400;i--;T=((1+S(t))/2)**3,x.fillRect(490-(S(X*T)*500-500)*T,540+C(X)*500,S(X*T)*1000*T+1000*(1-T),10))X=i%400/128

Mar 11 2017 11:25 PM UTC

}// 130/140

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u/recursive

Has the character of a viscous fluid somehow.

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kchplr

function u(t) {

for(c.width|=0,i=4940;i--;Y=3+i/380|0,x.fillRect(960+(S(X+t+C(i+t)*Y/9)+S(Y+t)*Y/2)*(50+Y*9),540+(C(X)+C(Y+t/9)*Y/3)*(50+Y*9),Y,5))X=i%380

Mar 11 2017 10:05 PM UTC

}// 139/140

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kchplr

remix of d/2012 by u/kchplr

function u(t) {

for(i=99;i--;A=T%6.35,r=30+((T/6.35|0))**1.05*15,r+=S(A+S(T*6))*(r/9+C(T)*5),x.fillRect(960+S(A)*r,540+C(A)*r,2+r/99,2+r/99))T=t*9+i/99

Mar 10 2017 8:31 AM UTC

}// 135/140

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u/jsizzle

Cool!
u/DataMeta

#hiddengem #spiral #topology

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kchplr

function u(t) {

for(i=99;i--;A=T%6.35,r=50+((T/6.35|0))**1.05*10,r+=C(T*8-r)*r/10,x.fillRect(960+S(A)*r-r/84,540+C(A)*r-r/90,2+r/42,2+r/45))T=t*9+i/99

Mar 10 2017 8:09 AM UTC

}// 134/140

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u/jsizzle

Beautiful
u/stiaje

Seems to require chrome or Firefox 52 due to exponentiation operator :(
u/Xen

77byte Remix #2939
u/FireFly

I love it

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kchplr

function u(t) {

for(c.width|=0,i=3e3;i--;X=S(t+i*.01)*500,D=1-((Y-540)**2+X*X)**.5/400,x.fillRect(960+X*D*1.7,Y+D*(100+S(t)*99),D*D*99,D*20))Y=(t+i<<2)%2e3

Mar 9 2017 6:42 PM UTC

}// 139/140

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u/jsizzle

Wow!
u/recursive

The movement looks like smoke. Very nice.
u/iverjo

Nice!
u/joeytwiddle

#smoke

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kchplr

function u(t) {

//plz ignore me
angle=t;
c.width|=0
x.fillRect(960 + C(angle)*250, 510+S(angle)*250, 20, 20);

Mar 8 2017 2:48 PM UTC

}// 93/140

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u/donbright

whar is the sound of one planet orbiting.

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