/* main source codes // RenderTexture.hx import pot.graphics.TextureFilter; import pot.graphics.TextureType; import pot.graphics.Texture; import pot.graphics.Graphics; class RenderTexture { final g:Graphics; public final size:Int; public var src(default, null):Texture; public var dst(default, null):Texture; public var srcWritten(default, null):Bool; public var dstWritten(default, null):Bool; public function new(g:Graphics, size:Int, type:TextureType, filter:TextureFilter = Nearest) { this.g = g; this.size = size; src = g.createTexture(size, size, type); dst = g.createTexture(size, size, type); src.filter(filter); dst.filter(filter); srcWritten = false; dstWritten = false; } public inline function render(f:() -> Void):Void { g.renderTarget(dst); g.inScene(f); g.renderTarget(null); dstWritten = true; var tmp = src; src = dst; dst = tmp; var tmp = srcWritten; srcWritten = dstWritten; dstWritten = tmp; } } // Papers.hx import pot.graphics.FovMode; import muun.la.Vec3; import muun.la.Quat; import js.html.Image; import haxe.ds.Vector; import pot.graphics.Texture; import js.Browser; import pot.core.App; import pot.graphics.Graphics; import pot.graphics.Shader; import pot.graphics.Shape; class Papers extends App { var g:Graphics; static inline final RES:Int = 512; // texture resolution static inline final VERTICES_PER_UNIT:Int = 8; // single tissue has VERTICES_PER_UNIT^2 vertices static inline final UNITS:Int = Std.int(RES / VERTICES_PER_UNIT); // total UNITS^2 tissues static inline final UNIT_SIZE:Float = 0.12; // tissue size static inline final INTERVAL:Float = UNIT_SIZE / (VERTICES_PER_UNIT - 1); // vertex interval static inline final FLOW_UNITS:Int = 8; static inline final FLOW_RES:Int = 64; static inline final FLOW_RES_2D:Int = 512; static inline final BG_R:Float = 0.05; static inline final BG_G:Float = 0.1; static inline final BG_B:Float = 0.2; static inline final GLOW_RES:Int = 512; static inline final POS:String = "posTex"; static inline final VEL:String = "velTex"; static inline final FLOW:String = "flowTex"; static inline final GLOW:String = "glowTex"; var pos:RenderTexture; var vel:RenderTexture; var glow:RenderTexture; var flow:Texture; var dx:Float = 0; var dy:Float = 0; var initPosShader:Shader; var integratPosShader:Shader; var solveSpringShader:Shader; var applyForceShader:Shader; var viewShader:Shader; var maskShader:Shader; var glowShader:Shader; var bgShader:Shader; final rot:Quat = Quat.id; var mesh:Shape; override function setup():Void { input.scalingMode = Screen; pot.frameRate(Fixed(60)); g = new Graphics(canvas); g.init3D(); g.perspective(FovMin); pos = new RenderTexture(g, RES, Float16); vel = new RenderTexture(g, RES, Float16); flow = g.createTexture(FLOW_RES_2D, FLOW_RES_2D, Float32); flow.filter(Nearest); glow = new RenderTexture(g, GLOW_RES, Int8, Linear); mesh = new Shape(g.getRawGL()); initFlow(); initShaders(); initMesh(); initSim(); pot.start(); } function toS(a:Float):String { var res = Std.string(a); if (res.indexOf(".") == -1 && res.indexOf("e") == -1) res += ".0"; return res; } function interp3D(f:Array>>, i:Float, j:Float, k:Float):Float { var i1 = Math.floor(i); var j1 = Math.floor(j); var k1 = Math.floor(k); var i2 = i1 + 1; var j2 = j1 + 1; var k2 = k1 + 1; i1 = i1 < 0 ? 0 : i1 >= FLOW_RES ? FLOW_RES - 1 : i1; j1 = j1 < 0 ? 0 : j1 >= FLOW_RES ? FLOW_RES - 1 : j1; k1 = k1 < 0 ? 0 : k1 >= FLOW_RES ? FLOW_RES - 1 : k1; i2 = i2 < 0 ? 0 : i2 >= FLOW_RES ? FLOW_RES - 1 : i2; j2 = j2 < 0 ? 0 : j2 >= FLOW_RES ? FLOW_RES - 1 : j2; k2 = k2 < 0 ? 0 : k2 >= FLOW_RES ? FLOW_RES - 1 : k2; final fi = i - i1; final fj = j - j1; final fk = k - k1; final f111 = f[i1][j1][k1]; final f112 = f[i1][j1][k2]; final f121 = f[i1][j2][k1]; final f122 = f[i1][j2][k2]; final f211 = f[i2][j1][k1]; final f212 = f[i2][j1][k2]; final f221 = f[i2][j2][k1]; final f222 = f[i2][j2][k2]; final f11 = f111 + (f112 - f111) * fk; final f12 = f121 + (f122 - f121) * fk; final f21 = f211 + (f212 - f211) * fk; final f22 = f221 + (f222 - f221) * fk; final f1 = f11 + (f12 - f11) * fj; final f2 = f21 + (f22 - f21) * fj; return f1 + (f2 - f1) * fi; } function initFlow():Void { final doLoad = true; if (doLoad) { flow.dispose(); flow = null; final img = new Image(); img.src = "flow.png"; // see https://oimo.io/works/papers/flow.png img.onload = () -> { flow = g.loadBitmap(img); } return; } var vx = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; var vy = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; var vz = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; var vx2 = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; var vy2 = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; var vz2 = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; final fixed = [ for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) false]] ]; final center = (FLOW_RES - 1) * 0.5; for (i in 0...FLOW_RES) { for (j in 0...FLOW_RES) { for (k in 0...FLOW_RES) { final x = (k + 0.5) / FLOW_RES * 2 - 1; final y = (j + 0.5) / FLOW_RES * 2 - 1; final z = (i + 0.5) / FLOW_RES * 2 - 1; if (i == 0 || j == 0 || k == 0 || i == FLOW_RES - 1 || j == FLOW_RES - 1 || k == FLOW_RES - 1) fixed[i][j][k] = true; if (x * x + y * y + z * z > 1.0) fixed[i][j][k] = true; } } } final div = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; final p = [for (i in 0...FLOW_RES) [for (j in 0...FLOW_RES) [for (k in 0...FLOW_RES) 0.0]]]; for (l in 0...1000) { for (i in 0...FLOW_RES) { for (j in 0...FLOW_RES) { for (k in 0...FLOW_RES) { vx2[i][j][k] = vx[i][j][k]; vy2[i][j][k] = vy[i][j][k]; vz2[i][j][k] = vz[i][j][k]; if (fixed[i][j][k]) continue; final fi = i - vz[i][j][k]; final fj = j - vy[i][j][k]; final fk = k - vx[i][j][k]; if (!fixed[i][j][k + 1]) vx2[i][j][k] = interp3D(vx, fi, fj, fk); if (!fixed[i][j + 1][k]) vy2[i][j][k] = interp3D(vy, fi, fj, fk); if (!fixed[i + 1][j][k]) vz2[i][j][k] = interp3D(vz, fi, fj, fk); } } } final tmp = vx; vx = vx2; vx2 = tmp; final tmp = vy; vy = vy2; vy2 = tmp; final tmp = vz; vz = vz2; vz2 = tmp; for (i in 0...FLOW_RES) { for (j in 0...FLOW_RES) { for (k in 0...FLOW_RES) { if (fixed[i][j][k]) continue; final x = (k + 0.5) / FLOW_RES * 2 - 1; final y = (j + 0.5) / FLOW_RES * 2 - 1; final z = (i + 0.5) / FLOW_RES * 2 - 1; if (y > -0.9 && y < 0.5 && x * x + z * z < 0.3 * 0.3) { vy[i][j][k] = 1; vy[i][j - 1][k] = 1; } if (y > -0.1 && y < 0.1 && x * x + z * z > 0.9 * 0.9) { vy[i][j][k] = -1; vy[i][j - 1][k] = -1; } } } } for (i in 0...FLOW_RES) { for (j in 0...FLOW_RES) { for (k in 0...FLOW_RES) { if (fixed[i][j][k]) continue; var d = 0.0; d += vx[i][j][k] - vx[i][j][k - 1]; d += vy[i][j][k] - vy[i][j - 1][k]; d += vz[i][j][k] - vz[i - 1][j][k]; div[i][j][k] = d; } } } for (t in 0...5) { for (i in 0...FLOW_RES) { for (j in 0...FLOW_RES) { for (k in 0...FLOW_RES) { if (fixed[i][j][k]) continue; var denom = 0.0; var b = 0.0; if (!fixed[i][j][k + 1]) { denom += 1.0; b += p[i][j][k + 1]; } if (!fixed[i][j][k - 1]) { denom += 1.0; b += p[i][j][k - 1]; } if (!fixed[i][j + 1][k]) { denom += 1.0; b += p[i][j + 1][k]; } if (!fixed[i][j - 1][k]) { denom += 1.0; b += p[i][j - 1][k]; } if (!fixed[i + 1][j][k]) { denom += 1.0; b += p[i + 1][j][k]; } if (!fixed[i - 1][j][k]) { denom += 1.0; b += p[i - 1][j][k]; } final pp = p[i][j][k]; final np = (b - div[i][j][k]) / denom; p[i][j][k] = pp + (np - pp) * 1.4; } } } } for (i in 0...FLOW_RES) { for (j in 0...FLOW_RES) { for (k in 0...FLOW_RES) { if (fixed[i][j][k]) continue; if (!fixed[i][j][k + 1]) vx[i][j][k] -= p[i][j][k + 1] - p[i][j][k]; if (!fixed[i][j + 1][k]) vy[i][j][k] -= p[i][j + 1][k] - p[i][j][k]; if (!fixed[i + 1][j][k]) vz[i][j][k] -= p[i + 1][j][k] - p[i][j][k]; } } } } final pixels = new Vector(FLOW_RES * FLOW_RES * 4); for (i in 0...FLOW_RES) { final ii = FLOW_RES - 1 - i; var index = 0; for (j in 0...FLOW_RES) { final jj = FLOW_RES - 1 - j; for (k in 0...FLOW_RES) { final kk = FLOW_RES - 1 - k; final r = vx[i][jj][k] * 0.5 + 0.5; final g = vy[i][jj][k] * 0.5 + 0.5; final b = vz[i][jj][k] * 0.5 + 0.5; pixels[index++] = r; pixels[index++] = g; pixels[index++] = b; pixels[index++] = 1.0; } } flow.uploadPixelsFloat((i % FLOW_UNITS) * FLOW_RES, Std.int(i / FLOW_UNITS) * FLOW_RES, FLOW_RES, FLOW_RES, pixels); } { final canvas = Browser.document.createCanvasElement(); final c2d = canvas.getContext2d(); canvas.width = FLOW_RES_2D; canvas.height = FLOW_RES_2D; final img = c2d.getImageData(0, 0, FLOW_RES_2D, FLOW_RES_2D); final pix = new Vector(FLOW_RES_2D * FLOW_RES_2D * 4); flow.downloadPixelsFloat(0, 0, FLOW_RES_2D, FLOW_RES_2D, pix); for (i in 0...pix.length) { final p = pix[i]; img.data[i] = Std.int(p * 255 + 0.5); } c2d.putImageData(img, 0, 0); Browser.document.body.appendChild(canvas); } } function initShaders():Void { final pos = Graphics.ATTRIBUTE_POSITION; final aColor = Graphics.ATTRIBUTE_COLOR; final aTexCoord = Graphics.ATTRIBUTE_TEXCOORD; final vColor = Graphics.VARYING_COLOR; final vPosition = Graphics.VARYING_POSITION; final vNormal = Graphics.VARYING_NORMAL; final vTexCoord = Graphics.VARYING_TEXCOORD; final uTransform = Graphics.UNIFORM_TRANSFORM; final uView = Graphics.UNIFORM_VIEW; final uNormalMatrix = Graphics.UNIFORM_NORMAL_MATRIX; final verticesPerUnit = toS(VERTICES_PER_UNIT); final res = toS(RES); final units = toS(UNITS); final flowUnits = toS(FLOW_UNITS); final unitSize = toS(UNIT_SIZE); final interval = toS(INTERVAL); final vs = ' precision highp float; attribute vec4 $pos; attribute vec2 $aTexCoord; uniform mat4 $uTransform; varying vec2 $vTexCoord; void main() { gl_Position = $uTransform * $pos; $vTexCoord = $aTexCoord; } '; final safeNormalize = ' vec3 safeNormalize(vec3 v) { float l = dot(v, v); return l > 0.0 ? v / sqrt(l) : v; } vec2 safeNormalize(vec2 v) { float l = dot(v, v); return l > 0.0 ? v / sqrt(l) : v; } '; final transpose = ' mat3 transpose(mat3 m) { vec3 x = m[0]; vec3 y = m[1]; vec3 z = m[2]; return mat3(vec3(x.x, y.x, z.x), vec3(x.y, y.y, z.y), vec3(x.z, y.z, z.z)); } '; final unitUtil = ' vec2 unitIndex(vec2 uv) { return floor(uv * $units); } vec2 unitCoord(vec2 uv) { return fract(uv * $units); } vec2 toUV(vec2 index, vec2 coord) { return coord / $units + index / $units; } '; final computeNormal = ' vec3 computeNormalOfQuad(vec3 p1, vec3 p2, vec3 p3, vec3 p4) { vec3 p13 = p3 - p1; vec3 p24 = p4 - p2; return safeNormalize(cross(p13, p24)); } vec3 computeNormal(vec2 uv, vec3 p) { vec2 index = unitIndex(uv); vec2 coord = unitCoord(uv); float first = 1.0 / $verticesPerUnit; float last = 1.0 - first; vec3 delta = vec3(1.0 / $res, 0, -1.0 / $res); vec3 p00 = texture2D($POS, uv + delta.zz).xyz; vec3 p01 = texture2D($POS, uv + delta.yz).xyz; vec3 p02 = texture2D($POS, uv + delta.xz).xyz; vec3 p10 = texture2D($POS, uv + delta.zy).xyz; vec3 p11 = p; vec3 p12 = texture2D($POS, uv + delta.xy).xyz; vec3 p20 = texture2D($POS, uv + delta.zx).xyz; vec3 p21 = texture2D($POS, uv + delta.yx).xyz; vec3 p22 = texture2D($POS, uv + delta.xx).xyz; bool xm = coord.x > first; bool xp = coord.x < last; bool ym = coord.y > first; bool yp = coord.y < last; vec3 n = vec3(0); if (xm && ym) n += computeNormalOfQuad(p00, p10, p11, p01); if (xm && yp) n += computeNormalOfQuad(p10, p20, p21, p11); if (xp && ym) n += computeNormalOfQuad(p01, p11, p12, p02); if (xp && yp) n += computeNormalOfQuad(p11, p21, p22, p12); return safeNormalize(n); } '; final bgColor = ' vec3 bgColor(vec3 dir, int glowMode) { float t = max(0.0, dir.y); vec3 color; if (glowMode == 0) { vec3 bg = vec3($BG_R, $BG_G, $BG_B); vec3 darkness = bg * 0.2; vec3 light = vec3(0.3, 0.5, 0.7); t = t * 0.1; float t2 = max(0.0, -dir.y); t2 = pow(t2, 2.0); color = bg + (light - bg) * t + (darkness - bg) * t2; } else { vec3 light = vec3(0.3, 0.6, 0.7); vec3 sun = vec3(0.8, 0.6, 0.5); float t2 = pow(t, 10000.0) * 0.5; t = pow(t, 20.0) * 0.3 + pow(t, 50.0) * 0.1 + pow(t, 800.0) * 0.2; color = light * t + sun * t2; } return color; } '; initPosShader = g.createShader(vs, ' precision highp float; varying vec2 $vTexCoord; $unitUtil vec3 getPos(vec2 index, vec2 coord) { // make coord from 0.0 to 1.0 coord = (coord - 0.5 / $verticesPerUnit) * $verticesPerUnit / ($verticesPerUnit - 1.0); vec3 res = vec3(0); res.xz = (coord + (index - 0.5 * $units) * 1.1) * $unitSize; res.y += cos(dot(coord + index, vec2(12345.6, 23456.7))) * 0.01; return res; } void main() { vec2 uv = $vTexCoord; vec2 index = unitIndex(uv); vec2 coord = unitCoord(uv); gl_FragColor = vec4(getPos(index, coord), 1); } '); solveSpringShader = g.createShader(vs, ' precision highp float; varying vec2 $vTexCoord; $unitUtil $safeNormalize uniform sampler2D $VEL; uniform sampler2D $POS; vec3 spring(vec3 p1, vec2 uv2, float dist) { vec3 p2 = texture2D($POS, uv2).xyz + texture2D($VEL, uv2).xyz; vec3 d = p2 - p1; float len = length(d); vec3 n = safeNormalize(d); float diff = len - $interval * dist; float force = diff * 0.15; return n * force; } void main() { vec2 uv = $vTexCoord; vec2 index = unitIndex(uv); vec2 coord = unitCoord(uv); float first = 1.0 / $verticesPerUnit; float last = 1.0 - first; float first2 = first * 2.0; float last2 = 1.0 - first * 2.0; vec3 v = texture2D($VEL, uv).xyz; vec3 pos = texture2D($POS, uv).xyz + v; vec3 delta = vec3(1.0 / $res, 0, -1.0 / $res); bool xm = coord.x > first; bool xp = coord.x < last; bool ym = coord.y > first; bool yp = coord.y < last; if (xm) v += spring(pos, uv - delta.xy, 1.0); if (xp) v += spring(pos, uv + delta.xy, 1.0); if (ym) v += spring(pos, uv - delta.yx, 1.0); if (yp) v += spring(pos, uv + delta.yx, 1.0); if (xm && ym) v += spring(pos, uv + delta.zz, 1.5); if (xm && yp) v += spring(pos, uv + delta.zx, 1.5); if (xp && ym) v += spring(pos, uv + delta.xz, 1.5); if (xp && yp) v += spring(pos, uv + delta.xx, 1.5); if (coord.x > first2) v += spring(pos, uv - delta.xy * 2.0, 2.2); if (coord.x < last2) v += spring(pos, uv + delta.xy * 2.0, 2.2); if (coord.y > first2) v += spring(pos, uv - delta.yx * 2.0, 2.2); if (coord.y < last2) v += spring(pos, uv + delta.yx * 2.0, 2.2); gl_FragColor = vec4(v, 1); } '); integratPosShader = g.createShader(vs, ' precision highp float; varying vec2 $vTexCoord; uniform sampler2D $VEL; uniform sampler2D $POS; void main() { vec2 uv = $vTexCoord; vec3 vel = texture2D($VEL, $vTexCoord).xyz; vec3 pos = texture2D($POS, $vTexCoord).xyz; vec3 npos = pos + vel; gl_FragColor = vec4(npos, 1); } '); applyForceShader = g.createShader(vs, ' precision highp float; varying vec2 $vTexCoord; uniform sampler2D $VEL; uniform sampler2D $POS; uniform sampler2D $FLOW; $unitUtil $safeNormalize $computeNormal vec3 getFlowAt(vec3 p, float radius) { p = p / radius * 0.5 + 0.5; p = clamp(p, vec3(0), vec3(1)); float depthIndex = clamp(floor(p.z * $flowUnits * $flowUnits), 0.0, $flowUnits * $flowUnits - 1.0); float unitY = floor(depthIndex / $flowUnits); float unitX = depthIndex - unitY * $flowUnits; vec2 fuv = vec2((p.x + unitX) / $flowUnits, (p.y + unitY) / $flowUnits); vec3 flow = texture2D($FLOW, fuv).xyz * 2.0 - 1.0; return flow; } void main() { vec2 uv = $vTexCoord; vec3 pos = texture2D($POS, uv).xyz; vec3 vel = texture2D($VEL, uv).xyz; vec3 normal = computeNormal(uv, pos); vec3 flow = getFlowAt(pos, 5.0) * 0.005; vel -= flow; float d = dot(normal, vel); vel = (d * normal) * 0.9 + (vel - d * normal) * 0.99; vel += flow; vel += flow * 0.05; float minVel = 0.01; if (length(vel) < minVel) { vel = safeNormalize(vel) * minVel; } if (length(pos) > 5.0) { vec3 target = safeNormalize(pos) * 5.0; vec3 diff = target - pos; if (length(diff) > 0.1) { diff = 0.1 * safeNormalize(diff); } vel += diff * 0.1; } gl_FragColor = vec4(vel, 1); } '); viewShader = g.createShader(' precision highp float; uniform sampler2D $POS; uniform sampler2D $FLOW; attribute vec4 $pos; attribute vec4 $aColor; attribute vec2 $aTexCoord; uniform mat4 $uTransform; uniform mat4 $uView; uniform mat3 $uNormalMatrix; varying vec4 $vColor; varying vec3 $vPosition; varying vec3 $vNormal; varying vec2 $vTexCoord; $unitUtil $safeNormalize $computeNormal void main() { vec2 uv = $aTexCoord; vec3 wpos = texture2D($POS, uv).xyz; gl_Position = $uTransform * vec4(wpos, 1); $vColor = $aColor; $vPosition = ($uView * vec4(wpos, 1)).xyz; vec3 normal = computeNormal(uv, wpos); $vNormal = -$uNormalMatrix * normal; $vTexCoord = uv; } ', ' precision highp float; varying vec4 $vColor; varying vec3 $vPosition; varying vec3 $vNormal; varying vec2 $vTexCoord; uniform mat3 $uNormalMatrix; uniform float ${Graphics.UNIFORM_AMBIENT}; uniform float ${Graphics.UNIFORM_DIFFUSE}; uniform float ${Graphics.UNIFORM_SPECULAR}; uniform float ${Graphics.UNIFORM_SHININESS}; uniform float ${Graphics.UNIFORM_EMISSION}; uniform int ${Graphics.UNIFORM_NUM_LIGHTS}; uniform vec4 ${Graphics.UNIFORM_LIGHT_POSITIONS}[8]; uniform vec3 ${Graphics.UNIFORM_LIGHT_COLORS}[8]; uniform vec3 ${Graphics.UNIFORM_LIGHT_NORMALS}[8]; $safeNormalize $transpose $bgColor void main() { if (${Graphics.UNIFORM_NUM_LIGHTS} == 0) { gl_FragColor = $vColor; return; } vec3 eye = safeNormalize($vPosition); vec3 n = safeNormalize($vNormal); vec3 color = $vColor.xyz; vec3 ambientTotal = vec3(0); vec3 diffuseTotal = vec3(0); vec3 specularTotal = vec3(0); vec3 emissionTotal = color * ${Graphics.UNIFORM_EMISSION}; if (!gl_FrontFacing) n = -n; for (int i = 0; i < 8; i++) { if (i == ${Graphics.UNIFORM_NUM_LIGHTS}) break; vec4 lp = ${Graphics.UNIFORM_LIGHT_POSITIONS}[i]; vec3 lc = ${Graphics.UNIFORM_LIGHT_COLORS}[i]; vec3 ln = ${Graphics.UNIFORM_LIGHT_NORMALS}[i]; bool amb = lp.w == 0.0 && dot(ln, ln) == 0.0; bool dir = lp.w == 0.0; if (amb) { ambientTotal += lc * color * ${Graphics.UNIFORM_AMBIENT}; } else { if (!dir) { ln = safeNormalize($vPosition - lp.xyz); } float ldot = -dot(ln, n); if (ldot < 0.0) ldot = 0.0; diffuseTotal += lc * color * ldot * ${Graphics.UNIFORM_DIFFUSE}; if (ldot > 0.0) { vec3 reflEye = eye - 2.0 * n * dot(eye, n); float rdot = -dot(reflEye, ln); if (rdot < 0.0) rdot = 0.0; specularTotal += lc * pow(rdot, ${Graphics.UNIFORM_SHININESS}) * ${Graphics.UNIFORM_SPECULAR}; } } } vec3 total = ambientTotal + diffuseTotal + specularTotal + emissionTotal; vec3 dir = transpose($uNormalMatrix) * safeNormalize($vPosition); vec3 bg = bgColor(dir, 0); float t = min(1.0, length($vPosition) / (5.0 * 0.9)); gl_FragColor = vec4(total + (bg - total) * t, $vColor.w); } '); bgShader = g.createShader(Graphics.DEFAULT_VERTEX_SHADER_CODE, ' precision highp float; uniform mat3 $uNormalMatrix; uniform int glowMode; varying vec4 $vColor; varying vec3 $vPosition; varying vec3 $vNormal; varying vec2 $vTexCoord; $safeNormalize $transpose $bgColor void main() { vec3 dir = transpose($uNormalMatrix) * safeNormalize($vPosition); gl_FragColor = vec4(bgColor(dir, glowMode), 1); } '); maskShader = g.createShader(' precision highp float; uniform sampler2D $POS; attribute vec4 $pos; attribute vec2 $aTexCoord; uniform mat4 $uTransform; void main() { vec2 uv = $aTexCoord; vec3 wpos = texture2D($POS, uv).xyz; gl_Position = $uTransform * vec4(wpos, 1); } ', ' precision highp float; void main() { gl_FragColor = vec4(0, 0, 0, 1); } '); glowShader = g.createShader(' precision highp float; attribute vec4 $pos; attribute vec2 $aTexCoord; uniform mat4 $uTransform; varying vec2 $vTexCoord; void main() { gl_Position = $uTransform * $pos; $vTexCoord = $aTexCoord; } ', ' precision highp float; uniform sampler2D $GLOW; varying vec2 $vTexCoord; uniform vec2 center; void main() { vec2 uv = $vTexCoord; vec2 diff = uv - center; vec3 color = vec3(0); float weight = 1.0; float weightSum = 0.0; for (int i = 0; i < 40; i++) { vec2 uv2 = center + diff; color += texture2D($GLOW, uv2).xyz * weight; weightSum += weight; diff *= 0.98; weight *= 0.9; } color /= weightSum; color *= 2.0; gl_FragColor = vec4(color, 1); } '); } function initMesh():Void { mesh.clear(Triangles); mesh.color(1, 1, 1); mesh.normal(0, 0, 1); for (ui in 0...UNITS) { for (uj in 0...UNITS) { for (i in 0...VERTICES_PER_UNIT - 1) { for (j in 0...VERTICES_PER_UNIT - 1) { final u1 = (ui * VERTICES_PER_UNIT + i + 0.5) / RES; final v1 = (uj * VERTICES_PER_UNIT + j + 0.5) / RES; final u2 = (ui * VERTICES_PER_UNIT + i + 1.5) / RES; final v2 = (uj * VERTICES_PER_UNIT + j + 1.5) / RES; mesh.color(1, 1, 1); mesh.texCoord(u1, v1); mesh.vertex(u1, v1, 0); mesh.texCoord(u1, v2); mesh.vertex(u1, v2, 0); mesh.texCoord(u2, v2); mesh.vertex(u2, v2, 0); mesh.texCoord(u1, v1); mesh.vertex(u1, v1, 0); mesh.texCoord(u2, v2); mesh.vertex(u2, v2, 0); mesh.texCoord(u2, v1); mesh.vertex(u2, v1, 0); } } } } } inline function renderTo(tex:RenderTexture, shader:Shader):Void { g.resetCamera(); g.screen(1, 1); setShader(shader); tex.render(() -> { g.clear(0, 0, 0); g.rect(0, 0, 1, 1); }); } function setShader(s:Shader):Void { if (s.hasUniform(POS)) s.setTexture(POS, pos.src); if (s.hasUniform(VEL)) s.setTexture(VEL, vel.src); if (s.hasUniform(FLOW)) s.setTexture(FLOW, flow); if (s.hasUniform(GLOW)) s.setTexture(GLOW, glow.src); g.shader(s); } function initSim():Void { renderTo(pos, initPosShader); } override function update():Void { if (flow == null) return; dx *= 0.95; dy *= 0.95; var scale = 0.2 / Math.min(pot.width, pot.height); if (input.touches.length > 0) { final touch = input.touches[0]; if (touch.touching) { dx += touch.dx * scale; dy += touch.dy * scale; } } if (input.mouse.left) { dx += input.mouse.dx * scale; dy += input.mouse.dy * scale; } if (dx * dx + dy * dy > 0) { final omega = Vec3.of(-dy, -dx, 0); rot.assign(rot * Quat.rot(omega.length, omega.normalized())); } renderTo(vel, applyForceShader); for (i in 0...2) renderTo(vel, solveSpringShader); renderTo(pos, integratPosShader); } override function draw():Void { if (flow == null) return; final z = rot * Vec3.of(0, 0, 1); final y = rot * Vec3.of(0, 1, 0); g.screen(pot.width, pot.height); g.camera(z.x, z.y, z.z, 0, 0, 0, y.x, y.y, y.z); final light = g.worldToView(Vec3.ey * 1000); var glowEnabled = light.z < 0; light.assign(g.viewToScreen(light)); glowEnabled = glowEnabled && Math.max(Math.abs(light.x), Math.abs(light.y)) < 3; if (glowEnabled) { g.renderTarget(glow.src); g.inScene(() -> { g.clear(0, 0, 0); bgShader.setInt("glowMode", 1); g.shader(bgShader); g.culling(Front); g.box(10, 10, 10); g.culling(None); setShader(maskShader); g.drawShape(mesh); g.culling(Back); }); glowShader.setFloat("center", light.x * 0.5 + 0.5, light.y * 0.5 + 0.5); g.resetCamera(); renderTo(glow, glowShader); g.screen(pot.width, pot.height); g.camera(z.x, z.y, z.z, 0, 0, 0, y.x, y.y, y.z); } else { g.renderTarget(glow.src); g.inScene(() -> { g.clear(1, 0, 0); }); } g.renderTarget(null); g.inScene(() -> { g.clear(BG_R, BG_G, BG_B); setShader(viewShader); g.ambientLight(BG_R * 0.5, BG_G * 0.5, BG_B * 0.5); g.directionalLight(0.8, 0.9, 1.0, 0, -1, 0); g.specular(0.8); g.shininess(8); g.culling(None); g.drawShape(mesh); bgShader.setInt("glowMode", 0); g.shader(bgShader); g.culling(Front); g.box(10, 10, 10); g.culling(Back); }); if (glowEnabled) { g.screen(1, 1); g.resetCamera(); g.resetShader(); g.inScene(() -> { g.disableDepthTest(); g.blend(Add); g.texture(glow.src); g.rect(0, 0, 1, 1); g.enableDepthTest(); g.noBlend(); }); } } static function main() { new Papers(cast Browser.document.getElementById("canvas")); } } */ function ia(l){var p=0;return function(){return p>>0)+"_",v=0;return p}); Ub("Symbol.iterator",function(l){if(l)return l;l=Symbol("Symbol.iterator");for(var p="Array Int8Array Uint8Array Uint8ClampedArray Int16Array Uint16Array Int32Array Uint32Array Float32Array Float64Array".split(" "),m=0;mm&&(m=Math.max(m+v,0));m>>0)+"_",v=0;return p}); sc("Symbol.iterator",function(l){if(l)return l;l=Symbol("Symbol.iterator");for(var p="Array Int8Array Uint8Array Uint8ClampedArray Int16Array Uint16Array Int32Array Uint32Array Float32Array Float64Array".split(" "),m=0;mm&&(m=Math.max(m+v,0));m first;\n\t\t\t\tbool xp = coord.x < last;\n\t\t\t\tbool ym = coord.y > first;\n\t\t\t\tbool yp = coord.y < last;\n\t\t\t\t\n\t\t\t\tvec3 n = vec3(0);\n\t\t\t\tif (xm && ym) n += computeNormalOfQuad(p00, p10, p11, p01);\n\t\t\t\tif (xm && yp) n += computeNormalOfQuad(p10, p20, p21, p11);\n\t\t\t\tif (xp && ym) n += computeNormalOfQuad(p01, p11, p12, p02);\n\t\t\t\tif (xp && yp) n += computeNormalOfQuad(p11, p21, p22, p12);\n\t\t\t\t\n\t\t\t\treturn safeNormalize(n);\n\t\t\t}\n\t\t"; this.ab=this.s.createShader("\n\t\t\tprecision highp float;\n\t\t\tattribute vec4 position;\n\t\t\tattribute vec2 texCoord;\n\t\t\tuniform mat4 transform;\n\n\t\t\tvarying vec2 vTexCoord;\n\n\t\t\tvoid main() {\n\t\t\t\tgl_Position = transform * position;\n\t\t\t\tvTexCoord = texCoord;\n\t\t\t}\n\t\t","\n\t\t\tprecision highp float;\n\t\t\tvarying vec2 vTexCoord;\n\t\t\t\n\t\t\t"+d+"\n\t\t\t\n\t\t\tvec3 getPos(vec2 index, vec2 coord) {\n\t\t\t\t// make coord from 0.0 to 1.0\n\t\t\t\tcoord = (coord - 0.5 / "+ a+") * "+a+" / ("+a+" - 1.0);\n\t\t\t\tvec3 res = vec3(0);\n\t\t\t\tres.xz = (coord + (index - 0.5 * "+b+") * 1.1) * "+this.H(.12)+";\n\t\t\t\tres.y += cos(dot(coord + index, vec2(12345.6, 23456.7))) * 0.01;\n\t\t\t\treturn res;\n\t\t\t}\n\n\t\t\tvoid main() {\n\t\t\t\tvec2 uv = vTexCoord;\n\t\t\t\tvec2 index = unitIndex(uv);\n\t\t\t\tvec2 coord = unitCoord(uv);\n\t\t\t\tgl_FragColor = vec4(getPos(index, coord), 1);\n\t\t\t}\n\t\t");this.Ea=this.s.createShader("\n\t\t\tprecision highp float;\n\t\t\tattribute vec4 position;\n\t\t\tattribute vec2 texCoord;\n\t\t\tuniform mat4 transform;\n\n\t\t\tvarying vec2 vTexCoord;\n\n\t\t\tvoid main() {\n\t\t\t\tgl_Position = transform * position;\n\t\t\t\tvTexCoord = texCoord;\n\t\t\t}\n\t\t", "\n\t\t\tprecision highp float;\n\t\t\tvarying vec2 vTexCoord;\n\t\t\t\n\t\t\t"+d+"\n\t\t\t\n\t\t\tvec3 safeNormalize(vec3 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\t\n\t\t\tvec2 safeNormalize(vec2 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\n\t\t\t\n\t\t\tuniform sampler2D velTex;\n\t\t\tuniform sampler2D posTex;\n\t\t\t\n\t\t\tvec3 spring(vec3 p1, vec2 uv2, float dist) {\n\t\t\t\tvec3 p2 = texture2D(posTex, uv2).xyz + texture2D(velTex, uv2).xyz;\n\t\t\t\tvec3 d = p2 - p1;\n\t\t\t\tfloat len = length(d);\n\t\t\t\tvec3 n = safeNormalize(d);\n\t\t\t\tfloat diff = len - "+ h+" * dist;\n\t\t\t\tfloat force = diff * 0.15;\n\t\t\t\treturn n * force;\n\t\t\t}\n\n\t\t\tvoid main() {\n\t\t\t\tvec2 uv = vTexCoord;\n\t\t\t\tvec2 index = unitIndex(uv);\n\t\t\t\tvec2 coord = unitCoord(uv);\n\t\t\t\t\n\t\t\t\tfloat first = 1.0 / "+a+";\n\t\t\t\tfloat last = 1.0 - first;\n\t\t\t\tfloat first2 = first * 2.0;\n\t\t\t\tfloat last2 = 1.0 - first * 2.0;\n\t\t\t\t\n\t\t\t\tvec3 v = texture2D(velTex, uv).xyz;\n\t\t\t\tvec3 pos = texture2D(posTex, uv).xyz + v;\n\t\t\t\t\n\t\t\t\tvec3 delta = vec3(1.0 / "+ c+", 0, -1.0 / "+c+");\n\t\t\t\t\n\t\t\t\tbool xm = coord.x > first;\n\t\t\t\tbool xp = coord.x < last;\n\t\t\t\tbool ym = coord.y > first;\n\t\t\t\tbool yp = coord.y < last;\n\t\t\t\t\n\t\t\t\tif (xm) v += spring(pos, uv - delta.xy, 1.0);\n\t\t\t\tif (xp) v += spring(pos, uv + delta.xy, 1.0);\n\t\t\t\tif (ym) v += spring(pos, uv - delta.yx, 1.0);\n\t\t\t\tif (yp) v += spring(pos, uv + delta.yx, 1.0);\n\t\t\t\tif (xm && ym) v += spring(pos, uv + delta.zz, 1.5);\n\t\t\t\tif (xm && yp) v += spring(pos, uv + delta.zx, 1.5);\n\t\t\t\tif (xp && ym) v += spring(pos, uv + delta.xz, 1.5);\n\t\t\t\tif (xp && yp) v += spring(pos, uv + delta.xx, 1.5);\n\t\t\t\tif (coord.x > first2) v += spring(pos, uv - delta.xy * 2.0, 2.2);\n\t\t\t\tif (coord.x < last2) v += spring(pos, uv + delta.xy * 2.0, 2.2);\n\t\t\t\tif (coord.y > first2) v += spring(pos, uv - delta.yx * 2.0, 2.2);\n\t\t\t\tif (coord.y < last2) v += spring(pos, uv + delta.yx * 2.0, 2.2);\n\t\t\t\t\n\t\t\t\tgl_FragColor = vec4(v, 1);\n\t\t\t}\n\t\t"); this.Va=this.s.createShader("\n\t\t\tprecision highp float;\n\t\t\tattribute vec4 position;\n\t\t\tattribute vec2 texCoord;\n\t\t\tuniform mat4 transform;\n\n\t\t\tvarying vec2 vTexCoord;\n\n\t\t\tvoid main() {\n\t\t\t\tgl_Position = transform * position;\n\t\t\t\tvTexCoord = texCoord;\n\t\t\t}\n\t\t","\n\t\t\tprecision highp float;\n\t\t\tvarying vec2 vTexCoord;\n\t\t\t\n\t\t\tuniform sampler2D velTex;\n\t\t\tuniform sampler2D posTex;\n\n\t\t\tvoid main() {\n\t\t\t\tvec2 uv = vTexCoord;\n\t\t\t\tvec3 vel = texture2D(velTex, vTexCoord).xyz;\n\t\t\t\tvec3 pos = texture2D(posTex, vTexCoord).xyz;\n\t\t\t\tvec3 npos = pos + vel;\n\t\t\t\tgl_FragColor = vec4(npos, 1);\n\t\t\t}\n\t\t"); this.Ia=this.s.createShader("\n\t\t\tprecision highp float;\n\t\t\tattribute vec4 position;\n\t\t\tattribute vec2 texCoord;\n\t\t\tuniform mat4 transform;\n\n\t\t\tvarying vec2 vTexCoord;\n\n\t\t\tvoid main() {\n\t\t\t\tgl_Position = transform * position;\n\t\t\t\tvTexCoord = texCoord;\n\t\t\t}\n\t\t","\n\t\t\tprecision highp float;\n\t\t\tvarying vec2 vTexCoord;\n\t\t\tuniform sampler2D velTex;\n\t\t\tuniform sampler2D posTex;\n\t\t\tuniform sampler2D flowTex;\n\t\t\t\n\t\t\t"+d+"\n\t\t\t\n\t\t\tvec3 safeNormalize(vec3 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\t\n\t\t\tvec2 safeNormalize(vec2 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\n\t\t\t"+ f+"\n\t\t\t\n\t\t\tvec3 getFlowAt(vec3 p, float radius) {\n\t\t\t\tp = p / radius * 0.5 + 0.5;\n\t\t\t\tp = clamp(p, vec3(0), vec3(1));\n\t\t\t\tfloat depthIndex = clamp(floor(p.z * "+e+" * "+e+"), 0.0, "+e+" * "+e+" - 1.0);\n\t\t\t\tfloat unitY = floor(depthIndex / "+e+");\n\t\t\t\tfloat unitX = depthIndex - unitY * "+e+";\n\t\t\t\tvec2 fuv = vec2((p.x + unitX) / "+e+", (p.y + unitY) / "+e+");\n\t\t\t\tvec3 flow = texture2D(flowTex, fuv).xyz * 2.0 - 1.0;\n\t\t\t\treturn flow;\n\t\t\t}\n\n\t\t\tvoid main() {\n\t\t\t\tvec2 uv = vTexCoord;\n\t\t\t\tvec3 pos = texture2D(posTex, uv).xyz;\n\t\t\t\tvec3 vel = texture2D(velTex, uv).xyz;\n\t\t\t\t\n\t\t\t\tvec3 normal = computeNormal(uv, pos);\n\t\t\t\t\n\t\t\t\tvec3 flow = getFlowAt(pos, 5.0) * 0.005;\n\t\t\t\t\n\t\t\t\tvel -= flow;\n\t\t\t\tfloat d = dot(normal, vel);\n\t\t\t\tvel = (d * normal) * 0.9 + (vel - d * normal) * 0.99;\n\t\t\t\tvel += flow;\n\t\t\t\t\n\t\t\t\tvel += flow * 0.05;\n\t\t\t\t\n\t\t\t\tfloat minVel = 0.01;\n\t\t\t\tif (length(vel) < minVel) {\n\t\t\t\t\tvel = safeNormalize(vel) * minVel;\n\t\t\t\t}\n\t\t\t\t\n\t\t\t\tif (length(pos) > 5.0) {\n\t\t\t\t\tvec3 target = safeNormalize(pos) * 5.0;\n\t\t\t\t\tvec3 diff = target - pos;\n\t\t\t\t\tif (length(diff) > 0.1) {\n\t\t\t\t\t\tdiff = 0.1 * safeNormalize(diff);\n\t\t\t\t\t}\n\t\t\t\t\tvel += diff * 0.1;\n\t\t\t\t}\n\t\t\t\t\n\t\t\t\tgl_FragColor = vec4(vel, 1);\n\t\t\t}\n\t\t"); this.cb=this.s.createShader("\n\t\t\tprecision highp float;\n\t\t\tuniform sampler2D posTex;\n\t\t\tuniform sampler2D flowTex;\n\t\t\tattribute vec4 position;\n\t\t\tattribute vec4 color;\n\t\t\tattribute vec2 texCoord;\n\t\t\tuniform mat4 transform;\n\t\t\tuniform mat4 view;\n\t\t\tuniform mat3 normalMatrix;\n\n\t\t\tvarying vec4 vColor;\n\t\t\tvarying vec3 vPosition;\n\t\t\tvarying vec3 vNormal;\n\t\t\tvarying vec2 vTexCoord;\n\t\t\t\n\t\t\t"+d+"\n\t\t\t\n\t\t\tvec3 safeNormalize(vec3 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\t\n\t\t\tvec2 safeNormalize(vec2 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\n\t\t\t"+ f+"\n\t\t\t\n\t\t\tvoid main() {\n\t\t\t\tvec2 uv = texCoord;\n\t\t\t\tvec3 wpos = texture2D(posTex, uv).xyz;\n\t\t\t\tgl_Position = transform * vec4(wpos, 1);\n\t\t\t\t\n\t\t\t\tvColor = color;\n\t\t\t\tvPosition = (view * vec4(wpos, 1)).xyz;\n\t\t\t\tvec3 normal = computeNormal(uv, wpos);\n\t\t\t\tvNormal = -normalMatrix * normal;\n\t\t\t\tvTexCoord = uv;\n\t\t\t}\n\t\t","\n\t\t\tprecision highp float;\n\t\t\tvarying vec4 vColor;\n\t\t\tvarying vec3 vPosition;\n\t\t\tvarying vec3 vNormal;\n\t\t\tvarying vec2 vTexCoord;\n\t\t\tuniform mat3 normalMatrix;\n\t\t\tuniform float ambient;\n\t\t\tuniform float diffuse;\n\t\t\tuniform float specular;\n\t\t\tuniform float shininess;\n\t\t\tuniform float emission;\n\t\t\tuniform int numLights;\n\t\t\tuniform vec4 lightPositions[8];\n\t\t\tuniform vec3 lightColors[8];\n\t\t\tuniform vec3 lightNormals[8];\n\n\t\t\t\n\t\t\tvec3 safeNormalize(vec3 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\t\n\t\t\tvec2 safeNormalize(vec2 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\n\t\t\t\n\t\t\tmat3 transpose(mat3 m) {\n\t\t\t\tvec3 x = m[0];\n\t\t\t\tvec3 y = m[1];\n\t\t\t\tvec3 z = m[2];\n\t\t\t\treturn mat3(vec3(x.x, y.x, z.x), vec3(x.y, y.y, z.y), vec3(x.z, y.z, z.z));\n\t\t\t}\n\t\t\n\t\t\t\n\t\t\tvec3 bgColor(vec3 dir, int glowMode) {\n\t\t\t\tfloat t = max(0.0, dir.y);\n\t\t\t\tvec3 color;\n\t\t\t\tif (glowMode == 0) {\n\t\t\t\t\tvec3 bg = vec3(0.05, 0.1, 0.2);\n\t\t\t\t\tvec3 darkness = bg * 0.2;\n\t\t\t\t\tvec3 light = vec3(0.3, 0.5, 0.7);\n\t\t\t\t\tt = t * 0.1;\n\t\t\t\t\tfloat t2 = max(0.0, -dir.y);\n\t\t\t\t\tt2 = pow(t2, 2.0);\n\t\t\t\t\tcolor = bg + (light - bg) * t + (darkness - bg) * t2;\n\t\t\t\t} else {\n\t\t\t\t\tvec3 light = vec3(0.3, 0.6, 0.7);\n\t\t\t\t\tvec3 sun = vec3(0.8, 0.6, 0.5);\n\t\t\t\t\tfloat t2 = pow(t, 10000.0) * 0.5;\n\t\t\t\t\tt = pow(t, 20.0) * 0.3 + pow(t, 50.0) * 0.1 + pow(t, 800.0) * 0.2;\n\t\t\t\t\tcolor = light * t + sun * t2;\n\t\t\t\t}\n\t\t\t\treturn color;\n\t\t\t}\n\t\t\n\n\t\t\tvoid main() {\n\t\t\t\tif (numLights == 0) {\n\t\t\t\t\tgl_FragColor = vColor;\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tvec3 eye = safeNormalize(vPosition);\n\t\t\t\tvec3 n = safeNormalize(vNormal);\n\t\t\t\t\n\t\t\t\tvec3 color = vColor.xyz;\n\t\t\t\tvec3 ambientTotal = vec3(0);\n\t\t\t\tvec3 diffuseTotal = vec3(0);\n\t\t\t\tvec3 specularTotal = vec3(0);\n\t\t\t\tvec3 emissionTotal = color * emission;\n\n\t\t\t\tif (!gl_FrontFacing) n = -n;\n\n\t\t\t\tfor (int i = 0; i < 8; i++) {\n\t\t\t\t\tif (i == numLights) break;\n\t\t\t\t\tvec4 lp = lightPositions[i];\n\t\t\t\t\tvec3 lc = lightColors[i];\n\t\t\t\t\tvec3 ln = lightNormals[i];\n\t\t\t\t\tbool amb = lp.w == 0.0 && dot(ln, ln) == 0.0;\n\t\t\t\t\tbool dir = lp.w == 0.0;\n\t\t\t\t\tif (amb) {\n\t\t\t\t\t\tambientTotal += lc * color * ambient;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif (!dir) {\n\t\t\t\t\t\t\tln = safeNormalize(vPosition - lp.xyz);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tfloat ldot = -dot(ln, n);\n\t\t\t\t\t\tif (ldot < 0.0) ldot = 0.0;\n\t\t\t\t\t\tdiffuseTotal += lc * color * ldot * diffuse;\n\t\t\t\t\t\tif (ldot > 0.0) {\n\t\t\t\t\t\t\tvec3 reflEye = eye - 2.0 * n * dot(eye, n);\n\t\t\t\t\t\t\tfloat rdot = -dot(reflEye, ln);\n\t\t\t\t\t\t\tif (rdot < 0.0) rdot = 0.0;\n\t\t\t\t\t\t\tspecularTotal += lc * pow(rdot, shininess) * specular;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tvec3 total = ambientTotal + diffuseTotal + specularTotal + emissionTotal;\n\t\t\t\t\n\t\t\t\tvec3 dir = transpose(normalMatrix) * safeNormalize(vPosition);\n\t\t\t\tvec3 bg = bgColor(dir, 0);\n\t\t\t\tfloat t = min(1.0, length(vPosition) / (5.0 * 0.9));\n\t\t\t\t\n\t\t\t\tgl_FragColor = vec4(total + (bg - total) * t, vColor.w);\n\t\t\t}\n\t\t"); this.aa=this.s.createShader("\n\t\tattribute vec4 position;\n\t\tattribute vec4 color;\n\t\tattribute vec3 normal;\n\t\tattribute vec2 texCoord;\n\n\t\tuniform mat4 transform;\n\t\tuniform mat4 modelview;\n\t\tuniform mat3 normalMatrix;\n\n\t\tvarying vec4 vColor;\n\t\tvarying vec3 vPosition;\n\t\tvarying vec3 vNormal;\n\t\tvarying vec2 vTexCoord;\n\n\t\tvoid main() {\n\t\t\tgl_Position = transform * position;\n\n\t\t\tvColor = color;\n\t\t\tvPosition = (modelview * position).xyz;\n\t\t\tvNormal = normalMatrix * normal;\n\t\t\tvTexCoord = texCoord;\n\t\t}\n\t", "\n\t\t\tprecision highp float;\n\t\t\tuniform mat3 normalMatrix;\n\t\t\tuniform int glowMode;\n\t\t\tvarying vec4 vColor;\n\t\t\tvarying vec3 vPosition;\n\t\t\tvarying vec3 vNormal;\n\t\t\tvarying vec2 vTexCoord;\n\n\t\t\t\n\t\t\tvec3 safeNormalize(vec3 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\t\n\t\t\tvec2 safeNormalize(vec2 v) {\n\t\t\t\tfloat l = dot(v, v);\n\t\t\t\treturn l > 0.0 ? v / sqrt(l) : v;\n\t\t\t}\n\t\t\n\t\t\t\n\t\t\tmat3 transpose(mat3 m) {\n\t\t\t\tvec3 x = m[0];\n\t\t\t\tvec3 y = m[1];\n\t\t\t\tvec3 z = m[2];\n\t\t\t\treturn mat3(vec3(x.x, y.x, z.x), vec3(x.y, y.y, z.y), vec3(x.z, y.z, z.z));\n\t\t\t}\n\t\t\n\t\t\t\n\t\t\tvec3 bgColor(vec3 dir, int glowMode) {\n\t\t\t\tfloat t = max(0.0, dir.y);\n\t\t\t\tvec3 color;\n\t\t\t\tif (glowMode == 0) {\n\t\t\t\t\tvec3 bg = vec3(0.05, 0.1, 0.2);\n\t\t\t\t\tvec3 darkness = bg * 0.2;\n\t\t\t\t\tvec3 light = vec3(0.3, 0.5, 0.7);\n\t\t\t\t\tt = t * 0.1;\n\t\t\t\t\tfloat t2 = max(0.0, -dir.y);\n\t\t\t\t\tt2 = pow(t2, 2.0);\n\t\t\t\t\tcolor = bg + (light - bg) * t + (darkness - bg) * t2;\n\t\t\t\t} else {\n\t\t\t\t\tvec3 light = vec3(0.3, 0.6, 0.7);\n\t\t\t\t\tvec3 sun = vec3(0.8, 0.6, 0.5);\n\t\t\t\t\tfloat t2 = pow(t, 10000.0) * 0.5;\n\t\t\t\t\tt = pow(t, 20.0) * 0.3 + pow(t, 50.0) * 0.1 + pow(t, 800.0) * 0.2;\n\t\t\t\t\tcolor = light * t + sun * t2;\n\t\t\t\t}\n\t\t\t\treturn color;\n\t\t\t}\n\t\t\n\n\t\t\tvoid main() {\n\t\t\t\tvec3 dir = transpose(normalMatrix) * safeNormalize(vPosition);\n\t\t\t\tgl_FragColor = vec4(bgColor(dir, glowMode), 1);\n\t\t\t}\n\t\t"); this.Wa=this.s.createShader("\n\t\t\tprecision highp float;\n\t\t\tuniform sampler2D posTex;\n\t\t\tattribute vec4 position;\n\t\t\tattribute vec2 texCoord;\n\t\t\tuniform mat4 transform;\n\n\t\t\tvoid main() {\n\t\t\t\tvec2 uv = texCoord;\n\t\t\t\tvec3 wpos = texture2D(posTex, uv).xyz;\n\t\t\t\tgl_Position = transform * vec4(wpos, 1);\n\t\t\t}\n\t\t","\n\t\t\tprecision highp float;\n\t\t\t\n\t\t\tvoid main() {\n\t\t\t\tgl_FragColor = vec4(0, 0, 0, 1);\n\t\t\t}\n\t\t");this.ta=this.s.createShader("\n\t\t\tprecision highp float;\n\t\t\tattribute vec4 position;\n\t\t\tattribute vec2 texCoord;\n\t\t\tuniform mat4 transform;\n\t\t\tvarying vec2 vTexCoord;\n\n\t\t\tvoid main() {\n\t\t\t\tgl_Position = transform * position;\n\t\t\t\tvTexCoord = texCoord;\n\t\t\t}\n\t\t", "\n\t\t\tprecision highp float;\n\t\t\tuniform sampler2D glowTex;\n\t\t\tvarying vec2 vTexCoord;\n\t\t\tuniform vec2 center;\n\t\t\t\n\t\t\tvoid main() {\n\t\t\t\tvec2 uv = vTexCoord;\n\t\t\t\tvec2 diff = uv - center;\n\t\t\t\tvec3 color = vec3(0);\n\t\t\t\tfloat weight = 1.0;\n\t\t\t\tfloat weightSum = 0.0;\n\t\t\t\tfor (int i = 0; i < 40; i++) {\n\t\t\t\t\tvec2 uv2 = center + diff;\n\t\t\t\t\tcolor += texture2D(glowTex, uv2).xyz * weight;\n\t\t\t\t\tweightSum += weight;\n\t\t\t\t\tdiff *= 0.98;\n\t\t\t\t\tweight *= 0.9;\n\t\t\t\t}\n\t\t\t\tcolor /= weightSum;\n\t\t\t\tcolor *= 2.0;\n\t\t\t\tgl_FragColor = vec4(color, 1);\n\t\t\t}\n\t\t")}; ba.prototype.Ua=function(){var a=this.i;a.mode=4;a.xa=0;var c=a.K;c.length=0;c.m=!0;var b=a.G;b.length=0;b.m=!0;var e=a.J;e.length=0;e.m=!0;var h=a.O;h.length=0;h.m=!0;var d=a.$;d.length=0;d.m=!0;a.r=0;a.s=0;a.b=0;a.a=1;a.P=0;a.R=0;a.Ba=0;a.ka=0;a.la=0;var f=this.i;f.r=1;f.s=1;f.b=1;f.a=1;var k=this.i;k.P=0;k.R=0;k.Ba=1;for(var g=0;64>g;)for(var q=g++,z=0;64>z;)for(var y=z++,B=0;7>B;)for(var F=B++,A=0;7>A;){var K=A++,G=(8*q+F+.5)/512,H=(8*y+K+.5)/512,I=(8*q+F+1.5)/512,J=(8*y+K+1.5)/512,T=this.i;T.r= 1;T.s=1;T.b=1;T.a=1;var R=this.i,V=G,W=H;if(1!=R.u&&null==R.N)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(R.u){case 0:V=G*R.N.C,W=H*R.N.D}R.ka=V;R.la=1-W;var D=this.i,L=D.$,aa=D.xa++;if(L.length==L.g.length){for(var X=L.g.length,ca=new Int32Array(X<<1),da=0;daq&&3>Math.max(Math.abs(c),Math.abs(b))){this.s.ia(this.L.src); e=this.s;e.ya();z=this.s;if(1!=z.V)throw Error("begin scene before clear scene");z.h.clearColor(0,0,0,1);z.h.clearDepth(1);z.h.clear(16640);this.aa.wb("glowMode",1);this.s.Bb(this.aa);z=this.s;z.h.enable(2884);z.h.cullFace(1028);this.s.box(10,10,10);this.s.h.disable(2884);this.v(this.Wa);this.s.mc(this.i);z=this.s;z.h.enable(2884);z.h.cullFace(1029);e.Aa();this.ta.W("center",.5*c+.5,.5*b+.5);c=this.L;b=this.ta;this.s.wa=!1;this.s.screen(1,1);this.v(b);c.s.ia(c.T);b=c.s;b.ya();e=this.s;if(1!=e.V)throw Error("begin scene before clear scene"); e.h.clearColor(0,0,0,1);e.h.clearDepth(1);e.h.clear(16640);this.s.rect(0,0,1,1);b.Aa();c.s.ia(null);c.Y=!0;b=c.src;c.src=c.T;c.T=b;b=c.ra;c.ra=c.Y;c.Y=b;this.s.screen(this.o.width,this.o.height);c=this.s;c.wa=!0;c.mb=a;c.nb=f;c.ob=h;c.jb=0;c.kb=0;c.lb=0;c.pb=d;c.qb=g;c.rb=k;c.B.Ub(c.mb,c.nb,c.ob,c.jb,c.kb,c.lb,c.pb,c.qb,c.rb)}else{this.s.ia(this.L.src);a=this.s;a.ya();f=this.s;if(1!=f.V)throw Error("begin scene before clear scene");f.h.clearColor(1,0,0,1);f.h.clearDepth(1);f.h.clear(16640);a.Aa()}this.s.ia(null); a=this.s;a.ya();f=this.s;if(1!=f.V)throw Error("begin scene before clear scene");f.h.clearColor(.05,.1,.2,1);f.h.clearDepth(1);f.h.clear(16640);this.v(this.cb);f=this.s;if(1!=f.V)throw Error("begin scene before setting lights");if(8==f.ma)throw Error("too many lights");f=f.ba[f.ma++];f.r=.025;f.s=.05;f.b=.1;f.Pa=0;f.Qa=0;f.Ra=0;f.Ab=0;f.Ma=0;f.Na=0;f.Oa=0;f=this.s;if(1!=f.V)throw Error("begin scene before setting lights");if(8==f.ma)throw Error("too many lights");f=f.ba[f.ma++];h=Math.sqrt(1);0";var b=typeof a;"function"==b&&(a.I||a.ec)&&(b="object");switch(b){case "function":return"";case "object":if(a.Xa){var e=ec[a.Xa].ib[a.Ja];b=e.$a;if(e.fc){c+="\t";var h=[],d=0;for(e=e.fc;d.5*this.i;){c=this.update; if(ka.i)try{c()}catch(e){c=Z.i(e),window.alert(ea.i(c))}else c();c=!0;this.o+=this.i;var b=Date.now();if(b-a>.75*this.i){this.o 0.0 ? normalize(v) : vec3(0);\n\t\t}\n\n\t\tvoid main() {\n\t\t\tif (numLights == 0) {\n\t\t\t\tgl_FragColor = vColor;\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tvec3 eye = safeNormalize(vPosition);\n\t\t\tvec3 n = safeNormalize(vNormal);\n\t\t\t\n\t\t\tvec3 color = vColor.xyz;\n\t\t\tvec3 ambientTotal = vec3(0);\n\t\t\tvec3 diffuseTotal = vec3(0);\n\t\t\tvec3 specularTotal = vec3(0);\n\t\t\tvec3 emissionTotal = color * emission;\n\n\t\t\tif (!gl_FrontFacing) n = -n;\n\n\t\t\tfor (int i = 0; i < 8; i++) {\n\t\t\t\tif (i == numLights) break;\n\t\t\t\tvec4 lp = lightPositions[i];\n\t\t\t\tvec3 lc = lightColors[i];\n\t\t\t\tvec3 ln = lightNormals[i];\n\t\t\t\tbool amb = lp.w == 0.0 && dot(ln, ln) == 0.0;\n\t\t\t\tbool dir = lp.w == 0.0;\n\t\t\t\tif (amb) {\n\t\t\t\t\tambientTotal += lc * color * ambient;\n\t\t\t\t} else {\n\t\t\t\t\tif (!dir) {\n\t\t\t\t\t\tln = safeNormalize(vPosition - lp.xyz);\n\t\t\t\t\t}\n\t\t\t\t\tfloat ldot = -dot(ln, n);\n\t\t\t\t\tif (ldot < 0.0) ldot = 0.0;\n\t\t\t\t\tdiffuseTotal += lc * color * ldot * diffuse;\n\t\t\t\t\tif (ldot > 0.0) {\n\t\t\t\t\t\tvec3 reflEye = eye - 2.0 * n * dot(eye, n);\n\t\t\t\t\t\tfloat rdot = -dot(reflEye, ln);\n\t\t\t\t\t\tif (rdot < 0.0) rdot = 0.0;\n\t\t\t\t\t\tspecularTotal += lc * pow(rdot, shininess) * specular;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tgl_FragColor = vec4(ambientTotal + diffuseTotal + specularTotal + emissionTotal, vColor.w);\n\t\t}\n\t"; a.za=!1;a=this.ab;a.map=new Tb;a.h.shaderSource(a.o,a.F);a.h.compileShader(a.o);a.h.getShaderParameter(a.o,35713)||window.alert(ea.i(a.h.getShaderInfoLog(a.o)+"\nsource:\n"+a.F));a.h.shaderSource(a.i,a.v);a.h.compileShader(a.i);a.h.getShaderParameter(a.i,35713)||window.alert(ea.i(a.h.getShaderInfoLog(a.i)+"\nsource:\n"+a.v));a.h.attachShader(a.A,a.o);a.h.attachShader(a.A,a.i);a.h.linkProgram(a.A);a.h.getProgramParameter(a.A,35714)?a.za=!0:l.console.log("link failed: "+a.h.getProgramInfoLog(a.A)); a=this.bb=new la(this.h);a.F="\n\t\tattribute vec4 position;\n\t\tattribute vec4 color;\n\t\tattribute vec3 normal;\n\t\tattribute vec2 texCoord;\n\n\t\tuniform mat4 transform;\n\t\tuniform mat4 modelview;\n\t\tuniform mat3 normalMatrix;\n\n\t\tvarying vec4 vColor;\n\t\tvarying vec3 vPosition;\n\t\tvarying vec3 vNormal;\n\t\tvarying vec2 vTexCoord;\n\n\t\tvoid main() {\n\t\t\tgl_Position = transform * position;\n\n\t\t\tvColor = color;\n\t\t\tvPosition = (modelview * position).xyz;\n\t\t\tvNormal = normalMatrix * normal;\n\t\t\tvTexCoord = texCoord;\n\t\t}\n\t"; a.za=!1;a=this.bb;a.v="\n\t\tprecision highp float;\n\t\tuniform sampler2D texture;\n\t\tvarying vec4 vColor;\n\t\tvarying vec3 vPosition;\n\t\tvarying vec3 vNormal;\n\t\tvarying vec2 vTexCoord;\n\t\tuniform float ambient;\n\t\tuniform float diffuse;\n\t\tuniform float specular;\n\t\tuniform float shininess;\n\t\tuniform float emission;\n\t\tuniform int numLights;\n\t\tuniform vec4 lightPositions[8];\n\t\tuniform vec3 lightColors[8];\n\t\tuniform vec3 lightNormals[8];\n\n\t\tvec3 safeNormalize(vec3 v) {\n\t\t\treturn dot(v, v) > 0.0 ? normalize(v) : vec3(0);\n\t\t}\n\n\t\tvoid main() {\n\t\t\tvec4 texMulColor = texture2D(texture, vTexCoord) * vColor;\n\t\t\tif (numLights == 0) {\n\t\t\t\tgl_FragColor = texMulColor;\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tvec3 eye = safeNormalize(vPosition);\n\t\t\tvec3 n = safeNormalize(vNormal);\n\t\t\tvec3 color = texMulColor.xyz;\n\t\t\tvec3 ambientTotal = vec3(0);\n\t\t\tvec3 diffuseTotal = vec3(0);\n\t\t\tvec3 specularTotal = vec3(0);\n\t\t\tvec3 emissionTotal = color * emission;\n\n\t\t\tif (!gl_FrontFacing) n = -n;\n\n\t\t\tfor (int i = 0; i < 8; i++) {\n\t\t\t\tif (i == numLights) break;\n\t\t\t\tvec4 lp = lightPositions[i];\n\t\t\t\tvec3 lc = lightColors[i];\n\t\t\t\tvec3 ln = lightNormals[i];\n\t\t\t\tbool amb = lp.w == 0.0 && dot(ln, ln) == 0.0;\n\t\t\t\tbool dir = lp.w == 0.0;\n\t\t\t\tif (amb) {\n\t\t\t\t\tambientTotal += lc * color * ambient;\n\t\t\t\t} else {\n\t\t\t\t\tif (!dir) {\n\t\t\t\t\t\tln = safeNormalize(vPosition - lp.xyz);\n\t\t\t\t\t}\n\t\t\t\t\tfloat ldot = -dot(ln, n);\n\t\t\t\t\tif (ldot < 0.0) ldot = 0.0;\n\t\t\t\t\tdiffuseTotal += lc * color * ldot * diffuse;\n\t\t\t\t\tif (ldot > 0.0) {\n\t\t\t\t\t\tvec3 reflEye = eye - 2.0 * n * dot(eye, n);\n\t\t\t\t\t\tfloat rdot = -dot(reflEye, ln);\n\t\t\t\t\t\tif (rdot < 0.0) rdot = 0.0;\n\t\t\t\t\t\tspecularTotal += lc * pow(rdot, shininess) * specular;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tgl_FragColor = vec4(ambientTotal + diffuseTotal + specularTotal + emissionTotal, texMulColor.w);\n\t\t}\n\t"; a.za=!1;a=this.bb;a.map=new Tb;a.h.shaderSource(a.o,a.F);a.h.compileShader(a.o);a.h.getShaderParameter(a.o,35713)||window.alert(ea.i(a.h.getShaderInfoLog(a.o)+"\nsource:\n"+a.F));a.h.shaderSource(a.i,a.v);a.h.compileShader(a.i);a.h.getShaderParameter(a.i,35713)||window.alert(ea.i(a.h.getShaderInfoLog(a.i)+"\nsource:\n"+a.v));a.h.attachShader(a.A,a.o);a.h.attachShader(a.A,a.i);a.h.linkProgram(a.A);a.h.getProgramParameter(a.A,35714)?a.za=!0:l.console.log("link failed: "+a.h.getProgramInfoLog(a.A)); this.Ua=null};E.prototype.Dc=function(){this.K=new n(this.h,"position",3);this.G=new n(this.h,"color",4);this.J=new n(this.h,"normal",3);this.O=new n(this.h,"texCoord",2);this.$=new nc(this.h)};E.prototype.$b=function(){return null!=this.Ua?this.Ua:null!=this.j?this.bb:this.ab};E.prototype.screen=function(a,c){this.Ea=a;this.ca=c;null==this.ja&&this.nc();this.S.perspective(this.Ha(),this.Ea/this.ca,this.ta,this.oa)};E.prototype.viewport=function(a,c,b,e){this.h.viewport(a,(null==this.ja?this.canvas.height: this.ja.height)-e-c,b,e)};E.prototype.nc=function(){if(null==this.ja)var a=this.canvas.width,c=this.canvas.height;else a=this.ja.width,c=this.ja.height;this.h.viewport(0,0,a,c)};E.prototype.Hc=function(){this.jc=this.ic=1;this.zb=0;this.yb=10;this.kc=0};E.prototype.ya=function(){if(0!=this.V)throw Error("scene already begun");this.V=!0;this.ua.Ec();this.ma=0;this.j=null;this.ac=this.bc=this.cc=this.dc=1;this.v=this.o=this.L=this.H=this.F=0;this.Hc();this.wa||(this.Wb=.5*this.Ea,this.hc=.5*this.ca, this.Ac=-this.ca/(2*Math.tan(.5*this.Ha())),this.B.Ub(this.Wb,this.hc,this.Ac,this.Wb,this.hc,0,0,-1,0))};E.prototype.Aa=function(){if(1!=this.V)throw Error("scene already ended");this.V=!1;this.h.flush()};E.prototype.clear=function(a,c,b,e){null==e&&(e=1);if(1!=this.V)throw Error("begin scene before clear scene");this.h.clearColor(a,c,b,e);this.h.clearDepth(1);this.h.clear(16640)};E.prototype.createShader=function(a,c){var b=new la(this.h);b.F=a;b.v=c;b.za=!1;b.map=new Tb;b.h.shaderSource(b.o,b.F); b.h.compileShader(b.o);b.h.getShaderParameter(b.o,35713)||window.alert(ea.i(b.h.getShaderInfoLog(b.o)+"\nsource:\n"+b.F));b.h.shaderSource(b.i,b.v);b.h.compileShader(b.i);b.h.getShaderParameter(b.i,35713)||window.alert(ea.i(b.h.getShaderInfoLog(b.i)+"\nsource:\n"+b.v));b.h.attachShader(b.A,b.o);b.h.attachShader(b.A,b.i);b.h.linkProgram(b.A);b.h.getProgramParameter(b.A,35714)?b.za=!0:l.console.log("link failed: "+b.h.getProgramInfoLog(b.A));return b};E.prototype.Bb=function(a){this.Ua=a};E.prototype.Mc= function(){this.Ua=null};E.prototype.createTexture=function(a,c,b){null==b&&(b=5121);var e=new t(this.h);e.L(a,c,b);return e};E.prototype.Ic=function(a){var c;null==c&&(c=5121);var b=new t(this.h);b.load(a,c);return b};E.prototype.ia=function(a){this.ja=a;null==a?(this.h.bindFramebuffer(36160,null),this.h.viewport(0,0,this.canvas.width,this.canvas.height)):(this.h.bindFramebuffer(36160,a.tb),this.h.viewport(0,0,a.width,a.height))};E.prototype.transform=function(a,c,b,e,h,d,f,k,g,q,z,y,B,F,A,K){this.ua.uc(a, c,b,e,h,d,f,k,g,q,z,y,B,F,A,K)};E.prototype.perspective=function(a,c,b,e){null==e&&(e=1E4);null==b&&(b=.1);null==c&&(c=1);null==a&&(a=Math.PI/3);this.Ta=a;this.Pb=c;this.ta=b;this.oa=e;this.S.perspective(this.Ha(),this.Ea/this.ca,this.ta,this.oa)};E.prototype.Ha=function(){var a=this.Ea/this.ca;switch(this.Pb){case 0:var c=!0;break;case 1:c=!1;break;case 2:c=1>a;break;case 3:c=1a;)for(var c=a++/16*Math.PI,b=0;32>b;){var e=b++/32*Math.PI*2;this.Wa.push(new bc(Math.sin(c)*Math.cos(e),Math.cos(c),-Math.sin(c)*Math.sin(e)))}this.Wa.push(new bc(0,-1,0));for(a=this.Ia.length=0;32>a;)c=a++,this.Ia.push([0,c+1,(c+1)%32+1]),this.Ia.push([449,449-(c+1),449-((c+1)%32+1)]);for(a=1;14>a;)for(c=1+32*(a++-1),b=c+32,e=0;32>e;){var h=e++,d=c+h,f=b+(h+1)%32;this.Ia.push([d,b+h,f]);this.Ia.push([d,f,c+(h+ 1)%32])}};E.prototype.box=function(a,c,b){var e=this.u;this.u=1;this.cb(4);a*=.5;c*=.5;b*=.5;var h=-a,d=-c,f=-b;if(null!=this.j){this.F=-1;var k=this.L=this.H=0,g=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,f);k=0;g=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C, g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,b);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,c,b);g=k=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,c,b);k=1;g=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,c,f);this.F=1;g=k=this.L=this.H=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,d,f);k=0; g=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,b);g=k=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,d,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,b);k=1;g=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,d,b);this.F=0;this.H=-1;g=k=this.L= 0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,f);k=0;g=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,d,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,d,b);g=k=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,d,b);k=1;g=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,b);this.F=0;this.H=1;g=k=this.L=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,c,f);k=0;g=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,c,b);g= k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,b);g=k=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,c,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,b);k=1;g=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,f);this.H=this.F=0;this.L=-1;g=k=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,f);k= 0;g=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,c,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,f);g=k=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(h,d,f);g=k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,c,f);k=1;g=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:k*=this.j.C,g*=this.j.D}this.o=k;this.v=1-g;this.i(a,d,f);this.H=this.F=0;this.L=1;k= f=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:f*=this.j.C,k*=this.j.D}this.o=f;this.v=1-k;this.i(h,d,b);f=0;k=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:f*=this.j.C,k*=this.j.D}this.o=f;this.v=1-k;this.i(a,d,b);k=f=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:f*=this.j.C,k*=this.j.D}this.o=f;this.v=1-k;this.i(a,c,b);k=f=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:f*=this.j.C,k*=this.j.D}this.o=f;this.v=1-k;this.i(h,d,b);f=d=1;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal");switch(this.u){case 0:d*=this.j.C,f*=this.j.D}this.o=d;this.v=1-f;this.i(a,c,b);a=1;d=0;if(1!=this.u&&null==this.j)throw Error("set texture before calling texCoord when texture mode is not Normal"); switch(this.u){case 0:a*=this.j.C,d*=this.j.D}this.o=a;this.v=1-d}else this.F=-1,this.L=this.H=0,this.i(h,d,f),this.i(h,d,b),this.i(h,c,b),this.i(h,d,f),this.i(h,c,b),this.i(h,c,f),this.F=1,this.L=this.H=0,this.i(a,d,f),this.i(a,c,f),this.i(a,c,b),this.i(a,d,f),this.i(a,c,b),this.i(a,d,b),this.F=0,this.H=-1,this.L=0,this.i(h,d,f),this.i(a,d,f),this.i(a,d,b),this.i(h,d,f),this.i(a,d,b),this.i(h,d,b),this.F=0,this.H=1,this.L=0,this.i(h,c,f),this.i(h,c,b),this.i(a,c,b),this.i(h,c,f),this.i(a,c,b),this.i(a, c,f),this.H=this.F=0,this.L=-1,this.i(h,d,f),this.i(h,c,f),this.i(a,c,f),this.i(h,d,f),this.i(a,c,f),this.i(a,d,f),this.H=this.F=0,this.L=1,this.i(h,d,b),this.i(a,d,b),this.i(a,c,b),this.i(h,d,b),this.i(a,c,b);this.i(h,c,b);this.Qb();this.u=e};E.prototype.Z=function(a){this.j=a};E.prototype.i=function(a,c,b){null==b&&(b=0);var e=this.$,h=this.xa++;if(e.length==e.g.length){for(var d=e.g.length,f=new Int32Array(d<<1),k=0;k>1;e|=e>>2;e|=e>>4;e|=e>>8;a==(e|e>>16)+1?(e=c-1,e|=e>>1,e|=e>>2,e|=e>>4,e|=e>>8,e=c!=(e|e>>16)+1):e=!0;this.F=e;this.C=1/a;this.D=1/c;this.h.bindTexture(3553,this.Z);this.h.texImage2D(3553, 0,6408,a,c,0,6408,b,null);this.h.bindTexture(3553,null);this.Sa=a=this.Sa;this.h.bindTexture(3553,this.Z);switch(a){case 9728:this.h.texParameteri(3553,10240,9728);this.h.texParameteri(3553,10241,9728);break;case 9729:this.h.texParameteri(3553,10240,9729),this.h.texParameteri(3553,10241,9729)}this.h.bindTexture(3553,null);a=this.o;c=this.v;if(this.F&&(33071!=a||33071!=c))throw Z.o("cannot use texture wrapping in NPOT textures");this.o=a;this.v=c;this.h.bindTexture(3553,this.Z);this.h.texParameteri(3553, 10242,a);this.h.texParameteri(3553,10243,c);this.h.bindTexture(3553,null);this.H()};t.prototype.load=function(a,c){this.width=a.width;this.height=a.height;this.type=c;var b=this.width;--b;b|=b>>1;b|=b>>2;b|=b>>4;b|=b>>8;this.width==(b|b>>16)+1?(b=this.height,--b,b|=b>>1,b|=b>>2,b|=b>>4,b|=b>>8,b=this.height!=(b|b>>16)+1):b=!0;this.F=b;this.C=1/this.width;this.D=1/this.height;this.h.bindTexture(3553,this.Z);this.h.texImage2D(3553,0,6408,6408,c,a.source);this.h.bindTexture(3553,null);this.Sa=a=this.Sa; this.h.bindTexture(3553,this.Z);switch(a){case 9728:this.h.texParameteri(3553,10240,9728);this.h.texParameteri(3553,10241,9728);break;case 9729:this.h.texParameteri(3553,10240,9729),this.h.texParameteri(3553,10241,9729)}this.h.bindTexture(3553,null);a=this.o;c=this.v;if(this.F&&(33071!=a||33071!=c))throw Z.o("cannot use texture wrapping in NPOT textures");this.o=a;this.v=c;this.h.bindTexture(3553,this.Z);this.h.texParameteri(3553,10242,a);this.h.texParameteri(3553,10243,c);this.h.bindTexture(3553, null);this.H()};t.prototype.H=function(){this.h.bindRenderbuffer(36161,this.i);this.h.renderbufferStorage(36161,33189,this.width,this.height);this.h.bindRenderbuffer(36161,null);this.h.bindFramebuffer(36160,this.tb);this.h.framebufferRenderbuffer(36160,36096,36161,this.i);this.h.framebufferTexture2D(36160,36064,3553,this.Z,0);this.h.bindFramebuffer(36160,null)};t.prototype.lc=function(){this.h.deleteTexture(this.Z);this.h.deleteFramebuffer(this.tb);this.h.deleteRenderbuffer(this.i);this.i=this.tb= this.Z=null};t.I=!0;n.I=!0;r.o=function(a){return-1==r.v.indexOf(a)?null:a};C.prototype.o=function(a,c,b,e){function h(g){g.cancelable&&g.preventDefault();g=g.changedTouches;for(var q=0,z=g.length;q

#simulation