Top dweets by u/tomxor

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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tomxor

remix of d/26256 by u/jdspugh

function u(t) {

eval(unescape(escape`𥀦𜐿𠰽𠰭𥀫𜠦𜐲𝰺𤰽𤰫𥀭𜰦𜠵𝐬𤰦𝀷𯁃𙠴𝰿𜐺𥀽𚁔𚱴𚡴𙠳𚐫𜐻𭑛𠰼🀸𯁓𧐽𨰮𭱩𩁴𪀽𜠵𝐬𮀮𫑯𭡥𥁯𚁓𛁃𚐬𨐽𜐮𝠪𥀬𨠽𝠪𭀥𜐬𮀮𩡩𫁬𚁸𛡡𬡣𚁓𛁃𛀶𛁡𚱢𛁡𛑢𚐩𞱦𫱲𚁩🐳𩐴𞱩𛐭𞰩𪐦𜰸𝐵𯁵𦱩𧑼𯁸𛡦𪑬𫁒𩑣𭀨𪐦𜠵𝐬𪐾🠸𛀲𛀲𚐻`.replace(/u../g,'')))

Oct 9 2022 3:24 PM UTC

}// 138/140

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Pacmancraft

u/lonestar108

Whoa very cool
u/vain

haha... very cool... had the same idea but didn't managed it.

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tomxor

remix of d/23413 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𞀻𪐭𛐻𥀽𤰨𦀯𝠩𚱃𚁙𛰽𝠩𚱙🠸𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𜀩𛁡👘𛑁𛁢👙𛑂𛁒👡𚡡𚱢𚡢𛐲𝐬𥀦𤠼𜐦𙠨𥐫👒𚡡𛁖𚰽𤠪𨠩𞱁𚰽𥐯𭰫𭰬𠐥👷𛁂𚰽𥠯𭰬𥠫🐱𞀭𥠯𜱥𜰻`.replace(/u../g,'')))

Jun 28 2022 8:24 PM UTC

}// 129/140

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Smoler Impossible Marble #Physics

u/tomxor

-11 bytes: Eliminated the intermediate k, moved some coefficients around, and swapped hypot for square values which is actually more stable for intersection resolution. Now it will never stop jiggling :D
u/magna

WOW!
u/pavel

Currently traced pixel is part of the ball and part of the background therefore collision. Awesome trick. My first time seeing this.

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tomxor

remix of d/23413 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𜀻𪐭𛐻𪰽𤰦𤠼𝐿𛠱𜠵𛑒𛰴𜀺𜀬𥐭👫𚡡𛁖𛐽𪰪𨠩𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙👩𛱷𛀱𛁓𯁒🀵𚐬𤰽𥀨𥀨𠰨𦀯𜐰𚐪𠰨𦐯𞐫𭀩𚐩🁙𛰹𛐳𚰳𚡃𚁴𚐬𤠽𣑡𭁨𛡨𮑰𫱴𚁡👘𛑁𛁢👙𛑂𚐻𠐫👕𚱷𛁂𚰽𥠪🐮𞐬𠐥👷𛁖𚰽𛠱`.replace(/u../g,'')))

Jul 28 2021 12:57 AM UTC

}// 140/140

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"This Thing" Capturing a Marble #Physics

u/magna

!!!
u/katkip

OMG

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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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tomxor

remix of d/15553 by u/tomxor

function u(t) {

for(c.width=128,i=576;i-=1/16;x.fillRect(16*X,16*Y,Z,Z))
X=i%8,Y=i/128,
Z=1+C(5*S(Y+C(X*3))+5*S(X+S(Y*3))+t*4)**3/3

Aug 28 2019 3:34 PM UTC

}// 115/140

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#lava

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u/aleamb

awesome!
u/katkip

i thought it's perlin noise. gj
u/tomxor

Never heard of it :) time for a quote: "Absolute Ignorance is the artificer [...] in order to make a perfect and beautiful machine it is not necessary to know how to make it" - Robert Beverley MacKenzie, 1868 ... gona keep my monkey fingers typing, maybe I will learn something.
u/taupelink

excellent
u/username

so what did you use to implement this noise?
u/DataMeta

115 bytes, clearly :)
u/KilledByAPixel

👍

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tomxor

remix of d/18323 by u/pavel

function u(t) {

f=(x,y,n=w)=>x<n?f(x*x-y*y-.8,2*x*y+.2,n-1):S(n/9)
for(w=c.width=99,i=6e3;i--;)
x.fillRect(X=i%w,Y=i/w,1,f((X-49)/t**8,(Y-28)/t**8-.703956))

Apr 22 2020 7:38 PM UTC

}// 140/140

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#zoom #julia #fractal

u/tomxor

Including x<n and .2i from u/rodrigo.siqueira
u/xem

amazing! how many extra bytes to have it less pixellized?
u/tomxor

Only +2 for 1/4 HD: d/18436 but your CPU will cry :P in fact full HD fits but you have to start measuring the speed in seconds per frame.
u/iverjo

Impressive!

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tomxor

remix of d/19550 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐭𛐻𬀦𘑵𦱲👩𚱷𚰨𪐪𭁞𦀩𙐳𛐱𧐦𙠭𛑵𦱩𧐦𚰫𭑛𬡝𚑰👵𦱩𧐬𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙👩🠾𝰬𛠵𛁵𦱩𧐽𠰨𝐪𤰨𭀯𝰫𦐯𜐸𚱃𚁘𛰶𚐩𚰵𚡓𚁴𛰱𜰫𦀯𜐸𚱓𚁙𛰶𚐩𚱴𛰱𝰩🀮𝠿𜠺𬀦𜑼𬀯𜠦𦀩`.replace(/u../g,'')))

Mar 12 2022 11:56 PM UTC

}// 128/140

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#Sand #Ant #Farm

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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𚁁👂🐸𛁕👖🐰𚐻𪐭𛐻𪰽𥀦𤠼𝐿𛠲𝐭𤠯𜠰𞠰𛁕𛐽𪰪𨐬𥠭👫𚡢𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𝐩𛁔👓𚁘𛰶𚐫𠰨𦐯𝠩𚱙𛰶🠸𛁒👍𨑴𪀮𪁹𬁯𭀨𨐽𦀭𠐬𨠽𦐭𠠩𞱁𚰽𥐬𠠫👖𛁁𚰽𭰬𠐥👷𛁖𚰽𛠱𜠵`.replace(/u../g,'')))

Jul 28 2021 12:08 AM UTC

}// 134/140

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Impossible Marble #Physics

u/tomxor

Inspired by d/23398. Uses raster/2d-voxel based intersection
u/Xen

love it!
u/magna

HOW?!
u/katkip

how
u/tomxor

It's particle physics, but the collisions are with implicit volumes. So rather than checking against a specific object, each pixel is intersected with the circle, if the pixel is filled and intersects, then it contributes velocity to the particle along the collision normal (the vector between the pixel and the point), the deeper the intersection based on the radius the greater the contribution... this is not correct at all and creates lots of phantom momentum, but is very simple and shares the code with drawining the screen.

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tomxor

remix of d/19748 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐭𛐻𭑛𪑝👴🱰🁷🱲𙐨𛠶𚱓𚁴𚠸𚱙𛰸𧡘𛰴𚐯𞐩𚠨𬀫𭑛𪐭𭱝𚱵𦱩𛑷𚰱𧐩𙡷𛐱𞡰𞠨寿𛐱𝀦𜐶𚐼🁲𚠮𝠩𬀽𭑛𪑝𛁸𛡦𪑬𫁓𭁹𫁥👒𚁰🁷𙠦𬀪𞀬𬀼𭰦𙡰𚠲𚐬𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙🐶𞀭𪐯𭰬𜐬𬀪𚠮𝀯𞀭𜐩𛁲👩𚡴𧡩𙡙`.replace(/u../g,'')))

Aug 20 2020 2:25 AM UTC

}// 139/140

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#castle #fire colour version

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u/jellyedwards

Amazing!
u/magna

DUDE!
u/DataMeta

this is c r a z y
u/sigveseb

One of the best dweets ever
u/KilledByAPixel

Epic dweet!
u/rep_movsd

How does this even work :O

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tomxor

remix of d/15355 by u/tomxor

function u(t) {

eval(unescape(escape`挮獴祬攽❦楬瑥爺楮癥牴⠱✻景爨愽戽瀽㌮ㄴⱩ㴲攴㭩ⴭ㭡⬽⡲ⵡ⭢⩓⡡⩰⤩⼴Ɫ⬽⠰ⵡ⩢⭃⡡⩰⤩⼴⥩☱☦砮晩汬剥捴⠹㘰⬶㐰⩓⡙㵢⬲⤪䌨堽愯⸳⤬㠰〫㘴〪䌨天Ⱞㄬ䌨堫⸵⤪⨮㤫⸱籼⸱Ⱳ㴨楞愪椯琩┲⤻`.replace(/u(..)/g,"$1%")))

Aug 10 2019 11:46 PM UTC

}// 140/140

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M Class ? #planet #space

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u/tomxor

#waitforit
u/aleamb

nice!
u/13thptr

amazing! #d3 #shading
u/tomxor

Thanks :)
u/magna

O M F G
u/moto

great
u/katkip

looks good

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