New #rotozoom dweets

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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danny@hille.dk

function u(t) {

eval(unescape(escape`󭍼󯌨󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󭼽󨼮󭽩󩍴󪌽󜼲󜌬󪌽󜜸󜌩󚜻󩭯󬬨󪜽󭼪󪌻󪜭󛜻󚝉󛭤󨝴󨜮󬽥󭌨󦽲󟜨󚍘󟝩󙝷󚜭󭼯󜬩󚭓󚍴󚜫󚌨󦜽󪜯󭽼󜌩󛜹󞜩󚭃󚍴󛼳󚜪󜽞󚍙󛝷󚬳󚭓󚍴󛼹󚜩󚭓󚍴󚜭󚍘󛝷󛼲󚜪󠼨󭌯󜼩󚬳󛍲󟝲󛜲󝜶󙬲󝜵󛌬󭽝󛍩󚬴󚜻󮌮󬍵󭍉󫝡󩽥󡍡󭍡󚍉󛌰󛌰󚜻`.replace(/u../g,'')))

Aug 31 2021 2:53 PM UTC

}// 140/140

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Old school demo effect: textured rotozoom

u/danny@hille.dk

It is loosly based on the rotozoom effect on this page https://seancode.com/demofx/
u/danny@hille.dk

He has a few nice oldscool effects, good for learning :-)
u/danny@hille.dk

#rotozoom

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danny@hille.dk

remix of d/18804 by u/yonatan

function u(t) {

for(i=c.width=99;i--;)for(j=56;j--;x.fillRect(i,j,1,S(S(v-j)-j)*S(C(u-i)-i)/2+.5))m=S(t),n=C(t),q=m*n,u=(a=i-50)*m+(b=j-26)*q,v=b*m-a*q

Jan 20 2021 6:38 PM UTC

}// 135/140

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u/Xen

smooth
u/danny@hille.dk

#rotozoom

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Symmetries

function u(t) {

w=960;h=540;v=w+h*C(t);c.width+=0;x.translate(w,h);x.rotate(9*S(t/3));for(i=-9;i<9;i++)for(j=-9;j<9;j++)(i+j)%2||x.fillRect(i*v-w,j*v-h,v,v)

Jul 11 2020 10:56 PM UTC

}// 140/140

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First Dweet

u/joeytwiddle

Nicely done! #rotozoom
u/katkip

#checkerboard

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prplz

remix of d/10060 by u/prplz

function u(t) {

for(let X,Y=16,A=S(t),B=C(t);16+Y--;)for(X=32;32+X--;x.fillRect(X+32<<5,Y+16<<5,32,32))x.fillStyle=R(r=(X*B*A-Y*A*A^X*A*A+Y*B*A)<<4&255,0,r)

Sep 26 2018 1:04 AM UTC

}// 140/140

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#rotozoom

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prplz

remix of d/7213 by u/prplz

function u(t) {

A=S(t),B=C(t)
for(c.width|=X=64;X--;)for(q=Y=32;Y--;((i*B-j*A)^(j*B+i*A))&8&&x.fillRect(X*q,Y*q,q,q))i=X*A-q*B,j=Y*A

Mar 9 2018 12:41 AM UTC

}// 116/140

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pixelly is better than fuzzy any day!

u/magna

Reminds me of a scene from Intrinsic Gravity. I actually want to do a Dwitter demake of the entire demo, using multiple dweets stitched together. Made a few screens as separate dweets a while back.
u/iverjo

Nice rotozoom :) So much better than mine
u/iverjo

#rotozoom

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yonatan

remix of d/2643 by u/yonatan

function u(t) {

for(X=c.width=128;--X;)for(Y=74;Y;x.fillStyle=`hsl(${A=X*C(t)+Y**S(t)^Y*C(t)-X**S(t)},${A=A+t*99&63}%,${A}%`)x.fillRect(X,--Y,1,1)

Jan 12 2018 8:44 PM UTC

}// 130/140

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10 chars left!

Show more comments…
u/sigveseb

woah this one is sick! more upvotes!
u/whackashoe

This is awesome!!!!
u/sandromiccoli

niiiice
u/iverjo

Mind blown!
u/iverjo

#rotozoom
u/joeytwiddle

#colors

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hoplite

function u(t) {

i=w=c.width=2e3;for(;i>0;i-=9)for(k=0;k<1e3;k+=9)a=S(t)*2,q=i-w/2,p=k-540,z=(5+S(t*2))*9,C((q*a+p)/z)+C((p*a-q)/z)<S(t)||x.fillRect(i,k,9,9)

Jan 2 2018 1:14 PM UTC

}// 140/140

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u/iverjo

Best rotozoom I've seen on dwitter!
u/sigveseb

Solid stuff
u/iverjo

#rotozoom

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New_Core

remix of d/438 by u/New_Core

function u(t) {

c.width=(a=1200)+500*S(t);q=99;x.font=3+'cm a';x.translate(960,540);x.rotate(t/3);for(i=320;i--;x.fillText("☕",i%24*q-a,i%26*q-a))x.fill()

May 26 2017 6:12 AM UTC

}// 138/140

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u/13thptr

lol
u/13thptr

#rotozoom

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keithclark

remix of d/2671 by u/keithclark

function u(t) {

for(a=1e4,J=S(t/=2)/7,c.width=Z=127;a--;)x.fillRect(X=a&Z,Y=a>>7,1,'p}¶¼<¼¶}p'.charCodeAt(Z+Y*C(t)-X*J&15)>>(X*C(t)+Y*J+Z*t)%15&1)

May 3 2017 4:27 PM UTC

}// 132/140

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6 bytes shorter (thanks p01)

u/iverjo

So good!
u/keithclark

Add a ~ before 'p}¶¼<¼¶}p' to invert colours
u/Lazy1337

epic #rotozoom
u/vain

nice rotozommer

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keithclark

function u(t) {

for(a=c.width|=0,G=36,J=S(t)/4;a--;'p}¶¼<¼¶}p'.charCodeAt(Y*C(t)+G-X*J&15)>>(X*C(t)+Y*J+t*G)%15&1&&x.fillRect(X*G,Y*G,G,G))X=a%53,Y=a>>6

May 3 2017 1:26 PM UTC

}// 138/140

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fullscreen rotozoom

u/joeytwiddle

#spaceinvaders #rotozoom #alien
u/yonatan

3-char shorter transposed bitmap (just posting so I won't forget it): 'ĄǼͶ߿׽ԅØ'

dwitter.net | #rotozoom