New #bumpmap 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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Current theme challenge: #Opposites

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tomxor

remix of d/27928 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐱𜀳𝠸𞠨𨐽𜠬𨠽𜐬𫱮𫑯𭑳𩑭𫱶𩐽𩐽🡻𨐽𩐮𮀯𜰰𜀬𨠽𩐮𮐯𜰰𜁽𚐻𦀽𛐭𪐥𭰬𦐽𪐯𭰻𮀮𩡩𫁬𤡥𨱴𚁘𚱺𚡒𛁙𚱺𚡔𛁍𨑴𪀮𪁹𬁯𭀨𤠽𦀯𝠴𛑡𛁔👙𛰶𝀭𨠩𚰡𮠯𜠬𜐩𚑺🐨𭰫𦀯𜰭𦐯𜱞𦐯𜰫𦀯𜰩𙐲𜐾𜐸`.replace(/u../g,'')))

Jun 7 2023 12:50 AM UTC

}// 130/140

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#interactive (mouse) #PCB #trace #bumpmap

u/Joachim

Ooooh nice
u/joeytwiddle

I want left-click to add a blob of solder!
u/tomxor

Good idea!

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tomxor

remix of d/20436 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𠐽𜐲𞀻𠐻𚁘𧡒𚐥𝰾𜐿𤠫🐮𜀱𞡔𚰫🀴𞀿𮀮𩡩𫁬𤡥𨱴𚁁𛑺𚡵𚠨𤠪𞀦𝰿𛐳𞠳𚐬𜰶𚱔𛱒𛑺𚡃𚠳𛁍𨑴𪀮𪁹𬁯𭀨𭐬𠰽𥀯𞐶𚱓𚁴𚐯𜠩𚠨𜐭𛠶𛱒𚐫𮠯𜠬𜠯𤠩𞠨𭐽𛐭𠐯𝠴𛐱𛁒🐱𛁔🐭𝀸𚐩𦀽𤠪𭐫𭀫𜠬𮠽𚁘𚱒𚐪𜐶𛁺🐨𮠭𥁞𥀫𮠩𙐷🠵`.replace(/u../g,'')))

Jun 7 2023 12:44 AM UTC

}// 139/140

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#DooM 2.5D #bumpmap textures

u/tomxor

Same concept of XY displacement, but X displacement needs to be inverted when a surface is aligned along Z to give the illusion of the light comming from the observer. Completely unrealistic lighting tricks.
u/deobfuscate

I don't feel like I can make any more dweets with so many good ones like this roaming around.
u/danny@hille.dk

This is just out of this world. #witchcraft
u/vain

Just f*cking amazing! 😎

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tomxor

function u(t) {

for(w=c.width&=i=10368;X=--i%w,Y=i/w;x.fillRect(X+z*R,Y+z*T,Math.hypot(R=X/64-1-S(t),T=Y/64-.6-C(t/3))+!z/2,1))z=(w+X/3-Y/3^Y/3+X/3)%21>18

Jun 6 2023 5:58 PM UTC

}// 138/140

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#PCB #trace #bumpmap

u/tomxor

Getting on the bump train with a different method. This one displaces X and Y in proportion to distance from light source, which creates pixel gaps on one side (specular highlights), and overlapping pixels on the opposite (becoming shadows).
u/danny@hille.dk

wow thats chrisp!

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rodrigo.siqueira

remix of d/25303 by u/pavel

function u(t) {

f=(x,y,n=0)=>x/y/X<99?f(x*x-y*y-.8,2*x*T(y)+.2,n+1):C(n/4)/2-.4
for(i=5e4;i--;x.fillRect(X=u&2047,u>>11,f(X/4000+.28,u/8e6-.24),1))u=-~u

Apr 12 2022 2:26 PM UTC

}// 136/140

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Two interlaced spirals #fractal

u/vain

very nice. looks a bit like #bumpmap

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