Dweets awesomed by u/DataMeta

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: #Opposites

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tomxor

remix of d/20416 by u/tomxor

function u(t) {

eval(unescape(escape`𠐽𤰨𭀩𞱂👃𚁴𚐻𩡯𬠨𨰮𭱩𩁴𪀽𦀽𜐲𞀻𦀭𛐻𚑻𩡯𬠨𦠽𜐬𤠽𥀨𦀯𞀱𛐮𞀩𞱡🐲𜀫𚁒𚡂𛑁𚐪𦠬𨠽𜐳𜠫𚁒𚡁𚱂𚐪𦠬𚁡𧡢𚐥𝰾𜐻𚑚𚰽𛠱𞱦𫱲𚁙🐭𝀸𞱙𚰫🀴𞀻𮀮𩡩𫁬𤡥𨱴𚁘𛀳𝠭𦐯𦠬𮠥𝰼𝠿𦠯𞀺𮠫𭀪𝠦𨐦𙠭𜐬𜐩𚑺🐨𨐫𨠩𚠸🀼𨐥𜠬𮠽𮠭𦑞𦐫𮡽`.replace(/u../g,'')))

Oct 30 2020 12:00 AM UTC

}// 140/140

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Doom? #raycasting

Show more comments…
u/tomxor

UAC something something Zombies... something something Mars
u/tomxor

Z+=.03 for smoother sampling if your CPU can take it.
u/yonatan

nice one!
u/DataMeta

super cool
u/Xen

love it!
u/sigveseb

waaa with texturing! awesome!
u/tomxor

Thanks :) I just realised I missclassified these. Although it is 2.5D with 3D texturing as Wolfenstien/Doom pioneered, the 2D distance is found using #raymarching rather than casting, which is necessary for size and implicit surfaces.
u/DataMeta

#d2.5
u/DataMeta

heheh tag gaffe
u/bandaloo

oh my god dude
u/vain

Uffff... O.o

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yonatan

function u(t) {

for(i=2e3;i--;)Y=frame/500-1,X=i/500-2,s=X+Y+(q=1-X*X-Y*Y)**.5,x.fillRect(i,frame,q<0?1:s>1?0:1-s,1)

Oct 29 2020 11:34 PM UTC

}// 100/140

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lit sphere via https://twitter.com/kamoshika_vrc/status/132…

u/joeytwiddle

#sphere
u/joeytwiddle

#sphere #lighting #raytracing
u/tomxor

Nice!

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ciaccodavide

function u(t) {

c.width|=0
𖤉.push(Math.random()*9)
for(𖣔=108;𖣔--;)x.fill(P=new Path2D,P.arc(t*96*𖤉[𖣔]%2e3,𖣔*10,𖤉[𖣔],0,7)),c.style.filter='invert(1)'}{𖤉=[]

Oct 29 2020 4:25 PM UTC

}// 138/140

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Side Starfield

u/ciaccodavide

#starfield #star #stars

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ciaccodavide

remix of d/20418 by u/ciaccodavide

function u(t) {

q=Math.random()*4
X+=q<1?-1:q<2?1:0
Y+=q>3?-1:q>2?1:0
X=X<0?0:X>60?60:X
Y=Y<0?0:Y>30?30:Y
x.fillRect(X*32,Y*32,16,16)
}{d=b={}
X=30,Y=15

Oct 28 2020 6:54 PM UTC

}// 136/140

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Random Dots Drawing

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tomxor

remix of d/20405 by u/tomxor

function u(t) {

A=S(t);B=C(t);for(c.width=X=128;X--;x.fillRect(X,36-1e3/Z,Z**.5/16,2e3/Z))for(Z=1,R=T(X/81-.8);(A*t+24+(R*B-A)*Z/8^64+(R*A+B)*Z/8)%15>1;)Z++

Oct 28 2020 6:12 PM UTC

}// 140/140

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Wolfendweet 3D #raycasting sans-bot no-clip

Show more comments…
u/pavel

The lack of x.fillStyle is amazing.
u/pavel

Save 3 chars by incrementing Z by .1 instead of doing the math every time: A=S(t);B=C(t);for(c.width=X=128;X--;x.fillRect(X,36-125/Z,Z**.5/7,250/Z))for(Z=0,R=T(X/81-.8);(A*t+24+(R*B-A)*Z^64+(R*A+B)*Z)%15>1;)Z+=.1
u/tomxor

Ah yes! thanks pavel :) I did try to get rid of Z/8 once but didn't go far enough with the constants as you did.
u/tomxor

Can also now play with the marching granularity more easily to get smoother results... although it's very slow without an SDF for the fractal for larger initial steps.
u/Xen

love it!
u/tomxor

#raymarching
u/13thptr

Nice dweet. Related: d/2961 d/7076
u/13thptr

#wolfenstein

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rodrigo.siqueira

function u(t) {

if(t<2.86)
for(i=~~(N=95**t);i--;) {
 X=S(i**7)*210*(t**.5)
 Y=S(i**8)*200*(t**.7)
 x.fillRect(960+X*3,540+Y*2.6,1.5,1.5)
}

Oct 28 2020 3:14 PM UTC

}// 123/140

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Magnetic monopole fields

u/rodrigo.siqueira

Final image (for the impatient): https://twitter.com/rsiqueira/status/1321473…

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ciaccodavide

function u(t) {

c.width=64
f=v=>824429291091531969149021958635251057546132335n&1n<<BigInt(~~t%10*15+v)
for(p=15;p--;)f(p)&&x.fillRect(30+p%3,15+~~(p/3),1,1)

Oct 28 2020 2:46 PM UTC

}// 140/140

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Decimal Counter without text

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u/ciaccodavide

For the crisp edges just add:
u/ciaccodavide

c.style.imageRendering='crisp-edges' [on Firefox]
u/ciaccodavide

c.style.imageRendering='pixelated' [on Chrome]
u/Xen

nice!
u/ciaccodavide

Thanks!
u/tomxor

Interesting, didn't know about the bigint n postfix
u/tomxor

Wow wait a sec... does this mean we can finally sue bitwise beyond 32bits in JS? 4503599627370496n>>52n
u/tomxor

oh this is cool 2n**64n there will be dwitterquences for this :)
u/ciaccodavide

yeeep ;)
u/Tesseract

0x24f7fbef924fef3fce7c9edf3cfcf9e4927b6fn makes it a little shorter, If you have any use for 5 more characters.
u/ciaccodavide

thanks u/Tesseract !!! I managed to get a compressed hd version thanks to your tip! d/20426
u/ciaccodavide

from 141 to 138 (compressed) :D

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ciaccodavide

function u(t) {

c.width=1320+600*S(t)
d=10
for(i=0;i<d;i++)x.fillStyle=R(f=d*i+S(t)*d,i+100+C(t)*d*d,i*f*d,.1337),x.arc(0,0,d+3*d*i*d,0,d),x.fill()

Oct 28 2020 10:06 AM UTC

}// 132/140

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Breathe

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taupelink

remix of d/20305 by u/taupelink

function u(t) {

r=Math.random;for(i=k=60;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*18)*32,x.fillStyle=R(h=k*S(C(Y%S(p=X/3+3)%C(q=Y-9))-2*Y/p)*q,h+h*q,h-h*p)

Oct 28 2020 1:01 AM UTC

}// 140/140

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d/20409

u/Xen

nice style

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Xen

remix of d/2984 by u/Xen

function u(t) {

for(X=c.width=98;X--;x.fillRect(X,D,1-D/8,59-D*6))for(D=0;'*'<(u+9)[D*C(T=X/99-C(t))|(7-D*S(T))<<3]&&D<6;)D+=.1

Oct 27 2020 6:22 PM UTC

}// 111/140

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Dweetenstein111 #d3

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