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Title	Normal Map
ID	6327602904514560
Created	4 years ago, 1609968776927
Updated	4 years ago, 1610037718705
Code	/** * move your mouse around, kinda like a light * * The weirdest thing just happened, I had 93 votes just a second ago. Then I reloaded the page and all of a sudden I'm at 87 * / // DeKhan library, made by Bob Lyon: // https://www.khanacademy.org/computer-programming/dekhan-the-code/5149916573286400 var DeKhan = (function() { / Regular expressions derived from Element118 delag() function. / var plusPlusExp = new RegExp("__env__\\.KAInfiniteLoopCount\\+\\+;\\n", "g"); var ifClauseExp = new RegExp("\\n\\sif \$__env__\\.KAInfiniteLoopCount > 1000\$ {[\\s]+__env__\\.KAInfiniteLoopProtect\$'[^']'\$;[^}]+}", "g"); var newExp = new RegExp("__env__\\.PJSCodeInjector\\.applyInstance\$(\\S+), '\\S+'\$", "g"); var envExp = new RegExp("__env__\\.", "g"); var noBreakSpace = "\u00a0"; / primenumbers7532@gmail.com / var lineBreak = String.fromCharCode(10); / Larry Serflaten for IE Windows / var spaceExp = new RegExp(" ", "g"); var newlineExp = new RegExp("\\n", "g"); var wasFrameCount = frameCount; frameCount = function() { frameCount = wasFrameCount; return this; }; var globals = frameCount(); var metIpseMecum = (0 \|\| arguments).callee; / Given source code, return a function in the global scope. / var conjureFunctionFrom = function (source) { / Copied from Element118 delag() function. / return Object.constructor('return (function(__env__) {return ' + source + ';});')()(globals); }; return { / Return a function like f without any loop detection. / loopDetect: function(f) { var source = f.toString(); source = source.replace(plusPlusExp, ""); source = source.replace(ifClauseExp, ""); return conjureFunctionFrom(source); }, / Return a function like f where the caller supplies the filter. / applyRegExp: function(f, rExp, replacement) { var source = f.toString(); source = source.replace(rExp, replacement); return conjureFunctionFrom(source); }, / Return a function like f that uses the keyword "new" again. / renew: function(f) { return this.applyRegExp(f, newExp, "new $1"); }, / * Print completely deKhanified function f source out via println. * All arguments are optional. / print: function(f, prefix, suffix) { f = f \|\| metIpseMecum; prefix = prefix \|\| ""; suffix = suffix \|\| ""; f = this.loopDetect(f); f = this.renew(f); var source = f.toString(); source = source.replace(envExp, ""); source = prefix + source + suffix; this.printText(source); }, / Print source line(s) out via println. / printText: function(source) { source = source \|\| " "; / blank line if nothing else... / source = source.replace(spaceExp, noBreakSpace); source = source.replace(newlineExp, lineBreak); println(source); }, }; })(); draw = DeKhan.loopDetect(function () { var tex = []; var n = 0; var nor = []; var slope = 1; var bump = 1.4; var img = []; var nmap = []; tex.push([ "hhhbbhbhjhlllkbh", "hkmnndlkbiihkhlh", "jdibbdhdhjiidbkd", "dcddhdddbdhdadda", "eaefdeaadddcaeda", "adeeaedddaadaaaf", "fdaagaaffaffaeae", "faffeeaaedeeaaee", "eaaeaeadaeeaaada", "eedaaddaaaaaffae", "eeaffafedffaeega", "eaaeefaeceeadead", "adeaeefaaaaaaaff", "aeaadaeeadfdafee", "eadfadadaaadaaee", "eafeeageeeaaeead", ]); nor.push([ "fgfffgfgffgggffg", "ffggg-gfghhfffgf", "g-hff-f-fghh-ff-", "-d--g---f-f-a--a", "cacb-caa---dac-a", "a-ccac---aa-aaab", "b-aadaabbabbacac", "babbccaac-ccaacc", "caacaca-accaaa-a", "cc-aa--aaaaabbac", "ccabbabc-bbaccda", "caaccbacdcca-ca-", "a-caccbaaaaaaabb", "acaa-acca-b-abcc", "ca-ba-a-aaa-aacc", "cabccadcccaacca-", ]); var palette = [ [ color(0), color(140, 97, 70), color(77, 161, 47), color(128, 128, 128), color(102, 75, 41), color(179, 128, 97), color(204, 153, 114), color(161, 161, 161), color(88, 181, 67), color(136, 217, 106), color(107, 191, 88), color(71, 171, 60), color(91, 191, 69), color(137, 199, 84), color(121, 189, 79), ], ]; // [x,y,z] var norms = [ [0,slope,bump], [0,-slope,bump], [slope,0,bump], [-slope,0,bump], [0,0,1], ]; var normp = []; for(var i = 0; i < norms.length; i += 1) { var hyp = mag(norms[i][0],norms[i][1],norms[i][2]); norms[i][0] /= hyp; norms[i][1] /= hyp; norms[i][2] /= hyp; normp.push(color(norms[i][0]125+125,norms[i][1]125+125,norms[i][2]125+125)); } var ltn = "-abcdefghijklmnopqrstuvwxyz"; noStroke(); for(var y = 0; y < 16; y += 1) { for(var x = 0; x < 16; x += 1) { fill(palette[n][ltn.indexOf(tex[n][y][x])]); rect(25x,25y,25,25); } } loadPixels(); img.push(imageData.data); noStroke(); for(var y = 0; y < 16; y += 1) { for(var x = 0; x < 16; x += 1) { fill(normp[4]); rect(25x,25y,25,25); } } for(var layer = 0; layer < 10; layer += 1) { for(var y = 0; y < 16; y += 1) { for(var x = 0; x < 16; x += 1) { var topi = ltn.indexOf(nor[n][constrain(y-1,0,15)][x]), boti = ltn.indexOf(nor[n][constrain(y+1,0,15)][x]), lefti = ltn.indexOf(nor[n][y][(x+15)%16]), righti = ltn.indexOf(nor[n][y][(x+1)%16]), toplefti = ltn.indexOf(nor[n][constrain(y-1,0,15)][(x+15)%16]), botlefti = ltn.indexOf(nor[n][constrain(y+1,0,15)][(x+15)%16]), toprighti = ltn.indexOf(nor[n][constrain(y-1,0,15)][(x+1)%16]), botrighti = ltn.indexOf(nor[n][constrain(y+1,0,15)][(x+1)%16]), thisi = ltn.indexOf(nor[n][y][x]), topy = max(0,topi-thisi-layer)slope, boty = max(0,boti-thisi-layer)slope, leftx = max(0,lefti-thisi-layer)slope, rightx = max(0,righti-thisi-layer)slope, toplefty = max(0,toplefti-thisi-layer)slope, botlefty = max(0,botlefti-thisi-layer)slope, toprighty = max(0,toprighti-thisi-layer)slope, botrighty = max(0,botrighti-thisi-layer)slope; pushMatrix(); translate(25x,25y); fill(normp[0]); quad( max(0,leftx-slope), max(0,topy-slope), 25-max(0,rightx-slope), max(0,topy-slope), 25-rightx, topy, leftx, topy ); fill(normp[1]); quad( max(0,leftx-slope), 25-max(0,boty-slope), 25-max(0,rightx-slope), 25-max(0,boty-slope), 25-rightx, 25-boty, leftx, 25-boty ); fill(normp[2]); quad( max(0,leftx-slope), max(0,topy-slope), leftx, topy, leftx, 25-boty, max(0,leftx-slope), 25-max(0,boty-slope) ); fill(normp[3]); quad( 25-max(0,rightx-slope), max(0,topy-slope), 25-rightx, topy, 25-rightx, 25-boty, 25-max(0,rightx-slope), 25-max(0,boty-slope) ); if(toprighti > righti && toprighti > topi) { fill(normp[3]); quad( 25-topy, 0, 25-toprighty, topy, 25-toprighty, toprighty, 25, 0 ); fill(normp[0]); quad( 25-toprighty, toprighty, 25, 0, 25, topy, 25-rightx, toprighty ); } if(toplefti > lefti && toplefti > topi) { fill(normp[2]); quad( topy, 0, toplefty, topy, toplefty, toplefty, 0, 0 ); fill(normp[0]); quad( toplefty, toplefty, 0, 0, 0, topy, leftx, toplefty ); } if(botrighti > righti && botrighti > boti) { fill(normp[3]); quad( 25-boty, 25, 25-botrighty, 25-boty, 25-botrighty, 25-botrighty, 25, 25 ); fill(normp[1]); quad( 25-botrighty, 25-botrighty, 25, 25, 25, 25-boty, 25-rightx, 25-botrighty ); } if(botlefti > lefti && botlefti > boti) { fill(normp[2]); quad( boty, 25, botlefty, 25-boty, botlefty, 25-botlefty, 0, 25 ); fill(normp[1]); quad( botlefty, 25-botlefty, 0, 25, 0, 25-boty, leftx, 25-botlefty ); } popMatrix(); } } } loadPixels(); nmap.push(imageData.data); background(0); loadPixels(); var pixels = imageData.data; draw = function() { for(var x = 0; x < width; x += 1) { for(var y = 0; y < height; y += 1) { var mouseV = [mouseX-x,mouseY-y,150]; var hyp = mag(mouseV[0],mouseV[1],mouseV[2]); var l = x+ywidth << 2; var normV = [nmap[n][l]-125,nmap[n][l+1]-125,nmap[n][l+2]-125]; var hyp2 = mag(normV[0],normV[1],normV[2]); var dProd = (mouseV[0]normV[0]+mouseV[1]normV[1]+mouseV[2]normV[2])/hyp/hyp2; pixels[l] = img[n][l]dProd; pixels[l+1] = img[n][l+1]dProd; pixels[l+2] = img[n][l+2]*dProd; } } updatePixels(); }; });
Folds	8,77
Fork	false
Key	ag5zfmtoYW4tYWNhZGVteXIXCxIKU2NyYXRjaHBhZBiAgJ3bvd2eCww
Votes	458
Spin-Offs	15
Type	PJS
Width	400
Height	400
User Flagged	false
Origin Scratchpad	null
Hidden From Hotlist	false
Restricted Posting	false
By Child	false
Author Nick	Ethan Kim
Author Name	I2I0
Author ID	kaid_731859500478059353240442
Author Profile Access	PUBLIC

Archive Data

Added	6 months ago, 1739456668545
Updated	4 months ago, 1744821165014
Source Deleted	unknown