Dweets awesomed by u/joeytwiddle

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: #Food

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Agnes

remix of d/8422 by u/Agnes

function u(t) {

i=new Image();d=[...c.toDataURL()];for(j=1+~~t*100;j--;d[~~(Math.random()*d.length)]="a");i.src=d.join("");i.onload=()=>x.drawImage(i,0,0);

Aug 10 2018 9:56 AM UTC

}// 139/140

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Re-make of d/8422 with the "u" variable re-named "d" (having a variable named "u" breaks your dweet in most views)... interestingly, this violates the new cross-domain content policy!

u/BirdsTweetCodersDweet

Could it be the toDataURL() ?
u/Agnes

I think we realised it's not actually the cross-domain policy breaking it but something else. The console errors are when you try to load corrupted PNG data, which this produces pretty often.

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f8f82804

remix of d/9185 by u/f8f82804

function u(t) {

c.width=500;a=29;for(i=240;α=C(T=i/a-t),i--;)for(j=6;j--;x.fillRect(i,a+j*a+S(T)*7,1,30))x.fillStyle=`hsl(${a*j**1.4} 99%${9+a*(0<α)*α**2}%`

Aug 9 2018 9:22 PM UTC

}// 140/140

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Remix #rainbow #flag with improved palette and #phong #shading with better shadows- - #pride #pbr

u/f8f82804

Correct shadows are implemented with the 0<α factor. To golf this in, I had to drop the diffuse reflection term and reuse constants. Palette improvements just took tweaking without extra characters.
u/f8f82804

Loop restructuring also give a very slight FPS improvement.

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f8f82804

remix of d/9162 by u/f8f82804

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡩㴳ㄴ㭩ⴭ㭢敧楮偡瑨⠩⥡牣⠲㐰⨨⡣㵓⡡㵩⼱〰⤪匨戽琫椩⤫㐩ⰱㄲ⨨匨愩⩃⡢⤭㈪䌨愩⬴⤬㐰⨨匨愩⬮㈩ⰰⰷ⤬晩汬⠩ⱦ楬汓瑹汥㵠桳氨⑻㌶〪⠨戯㘭琯㐩┱⥽‹〥⑻㌰⨨ㄫ挫挪⨹⥽╠`.replace(/u(..)/g,"$1%")))

Aug 8 2018 7:04 PM UTC

}// 136/140

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Fancy #phong #shading #sphere -- #compressed #d3 #pbr

Show more comments…
u/f8f82804

Uncompressed: with(x)for(i=314;i--;beginPath())arc(240*((c=S(a=i/100)*S(b=t+i))+4),112*(S(a)*C(b)-2*C(a)+4),40*(S(a)+.2),0,7),fill(),fillStyle=hsl(${360*((b/6-t/4)%1)} 90%${30*(1+c+c**9)}%
u/magna

#sequins
u/lionleaf

Now that's beautiful!
u/f8f82804

I love it, but I really wanted to do it without compression. I even tried using fillText('●'). See my remix for the closest I could get.
u/iverjo

Sweet! #colorful
u/joeytwiddle

#hiddengem #model
u/f8f82804

#fullhd

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New_Core

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=200;i--;x.fillRect(960+150*S(i),Y=850-750*C((i/.6+t)%1.57),T=20-Y/70,T))i<1?a=.1:a=255,x.fillStyle=R(0,0,a,a)

Aug 8 2018 1:15 PM UTC

}// 139/140

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f8f82804

remix of d/7280 by u/prplz

function u(t) {

for(X=240;X--;)for(Y=64;Y--;)x.fillStyle=`hsl(${X+255*(t+Y/(k=Y-72))} 90%${50*((X-120)/k+t+9&1^Y/k&1)}%)`,x.fillRect(X*8,1080-Y*8,8,8)

Aug 7 2018 11:22 PM UTC

}// 134/140

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Rainbow checkerboard #d3 #perspective #raytrace #slow

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f8f82804

remix of d/9161 by u/f8f82804

function u(t) {

c.width=100
for(i=314;i--;)x.fillRect(9*S(α=i/100)*S(β=t+i)+50,4*((a=S(α)*C(β))-2*C(α)+6),3,3),x.fillStyle=`hsl(${t*i} 90%${30*(1+a+a**9)}%`

Aug 7 2018 7:45 PM UTC

}// 140/140

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Remix with ambient light #phong #pbr

u/f8f82804

#d3
u/magna

Nice!
u/aleamb

fucking awesome!

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firegodjr

remix of d/9138 by u/katkip

function u(t) {

c.width|=r=255
for(a=i=900;i--;x.fillRect(X=S(i/9+t*2)*r+a,T(i/27)*400+500,X<a?i%60?40:a*2-X*2:40,9))x.fillStyle=R(T(i*3)*r,S(i/t)*r,C(t)*r)

Aug 7 2018 4:49 PM UTC

}// 140/140

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#challengeaccepted 😁

u/d0n.key

"When you try your best ...
u/katkip

Um... weird but cool!

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Xen

remix of d/9146 by u/katkip

function u(t) {

x.fillRect(0,0,Z=2e3,Z)
for(i=Z;i--;x.fillRect(i,Z*C(S(2*t|0)*i+t),99,i/9))x.fillStyle=`hsla(${199*t+i/4},99%,50%,.2)`

Aug 6 2018 7:27 PM UTC

}// 118/140

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u/magna

#keepsongiving
u/d0n.key

This created some kind of music in my mind o.O.o
u/katkip

Images you can hear

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Xen

remix of d/9140 by u/katkip

function u(t) {

for(c.width|=Z=i=t*99%2e3|0;i--;x.fillRect(Z+i*S(i*t),500+i*C(i*t),99*C(t),99*S(t)))x.fillStyle=`hsla(${Z*t^i},99%,50%,.1)`

Aug 6 2018 3:33 PM UTC

}// 123/140

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#remix_chain

u/joeytwiddle

Hyper #spiral

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joeytwiddle

remix of d/9135 by u/katkip

function u(t) {

for(Z=1e3,i=2e3;i--;x.fillStyle=`hsla(${2e2*t},99%,66%,.02)`)
x.fillRect(Z+Z*C(i|t),500+Z*S(i+t*2),20*C(t*i),99)

Aug 6 2018 6:05 AM UTC

}// 112/140

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Hopping aboard the dweet chain train

u/katkip

#remix_chain

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