1 files changed, 0 insertions, 327 deletions
diff --git a/doc/shaderz.txt b/doc/shaderz.txt
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--- a/doc/shaderz.txt
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-
->> energy ball ascii shader
-
-d = dist(x/2+w/4, y, w/2, h/2)
-an = angle(x/2+w/4, y, w/2,h/2)+t/4200
-r=10.2
-
-if (d < r) lex.bg = randint(r)
-
-ll=abs(an|0)+""
-lex.char=ll[ll.length-1]
-
-if (d > r) {
-  lex.bg = randint(d)
-  lex.fg = randint(d)
-  lex.char = ll[ll.length-2]
-}
-
-
->> original shader..
-
-lex.bg = hue((x+y*y+t/10)/20)
-lex.fg = (x+y)%16
-lex.char = (y%2) ? ":" : "%" 
-
-
-
->> drifting fire
-
-t += sin(x/1000)*100000
-pos = y/h*6 + sin(x*3) - cos(y*t/10000-10)
-pos = clamp(pos, 0, 6)
-lex.bg = hue(pos)
-
-
-
->> the "bJoel56" shader
-
-yy=y
-x-=w/2
-y-=h/2
-
-lex.bg = blue(yy/h+random())
-lex.fg = green(yy/h*4 + sin(x/100+random()/2)) // hue(t/1000)|0;
-
-var abcd=".'~:;!>+=icjtJYSGSXDQKHNWM";
-function chara (aa,n) { return aa[clamp(n*aa.length, 0, aa.length)|0] }
-lex.char = chara(abcd, y/h*(5/3 + tan(x/100)+random()/1))
-
-
-
->> noise brushes, works on a black background:
-
-if (lex.bg != 1) lex.bg = max(5, yellow(randint(t)))
-
-
->> simple rainbow:
-
-if (lex.bg != 1) lex.bg = randint(t)
-
-
->> self-erasing:
-
-if (lex.bg != 1) lex.bg = yellow(randint(t))
-
-
->> cycling rainbow brush
-
-if (lex.bg != 1) lex.bg = hue( all_color_hue_order.indexOf( color_names[ lex.bg ] ) + 1 )
-
-
-
->> inelegant way to slow the frame rate of a shader.
-
-window.zz=window.zz||0
-if(!(x+y)) zz++
-if (lex.bg != 1 && !(zz % 4)) {
-  ...
-}
-
-
->> frog shader v2
-
-t/=-100
-d = sinp( (dist(x/2+w/4, y, w/2, h/2) + t)/2 ) * 10
-
-lex.char=',./>"ASE$#'[(floor(d))]
-lex.fg = [1,3,9][floor(d*3)%3]
-lex.bg=1
-
-
->> frog shader v3
-
-// set period to like 0.2 for a normal circle
-period = y/10
-
-t/=-100
-d = sinp( (dist(x/2+w/4, y, w/2, h/2) + t) * period )
-dd = d * 10.5
-d3 = dd < 8 ? 0 : 1
-
-lex.char=' .,"+/>OXEN'[(floor(dd))]
-lex.fg = [3,9][floor(d3)]
-lex.bg=1
-
-
-many cool shaders are possible with this technique.. changing the char
-gradient (lex.char=...) etc. i love how the dots move on v4.
-
-this is a variation that looks like a bunch of ships flying across the screen.
-has a really cool 3d look to it cuz the rows move at different speeds.
-
-period = sin(y)
-
-t/=-100
-d = sinp( (dist(x/2+w/4, y, w/2, h/2) + t) * period )
-dd = d * 10.5
-d3 = dd < 8 ? 0 : 1
-
-lex.char=' .,"+/>\^+'[(floor(dd))]
-lex.fg = [3,9][floor(d3)]
-lex.bg=1
-
-
->> "stars" brush.. set your brush to paint just the character "#"
-
-if (lex.char == "#") {
-  lex.fg = hue(randint(15))
-  lex.char = random() > 0.1 ? " " : "+@*.,\"+'*-"[randint(10)]
-}
-
-
->> use fg char to mask mask what you're drawing on the bg
-
-if (lex.char != "/") { lex.bg = 1 }
-
-
->> concentric circles with a wavy "sunburst" pattern going around them
-
-
-x -= w/2
-y -= h/2
-
-x /= h
-y /= h/2 + 2
-
-r = dist(x,y,0,0)
-ang = angle(x,y,0,0)
-
-if (r < 0.6) {
-  if (abs(mod(sin((r*t)/100000000000) + ang*18,TWO_PI)) < 2)
-    lex.bg = 12
-  else
-    lex.bg = 5
-}
-else if (r < 0.65)
-  lex.bg = 4
-else if (abs(mod(sin((r*t)/100000000000) + ang*18,TWO_PI)) < 2)
-  lex.bg = 7
-else
-  lex.bg = 8
-
-
->> slash-based interference patterns
-
-if (x > h*2) x=h-x
-y-=h/2
-t/=2000
-
-if (sin(x-y*t) > 0) {
-  lex.bg=1
-  lex.fg=4
-  lex.char= Math.floor(x-y*10001+t)%2 ? '\/' : '\\' 
-}
-else {
-  lex.bg=1
-  lex.fg=9
-  lex.char= Math.floor(3*x+y+t)%2 ? '\\' : ' ' 
-}
-
-
->> sparkling stars
-
-if (lex.char != " ") {
-  lex.fg =floor( Math.random()*10 )
-  var az="Xx+*"
-  lex.char=az[floor(az.indexOf(lex.char)+ t/10000000 +Math.random())%az.length]
-}
-
-
->> clashing contrast text..
-
-First, make a canvas that's totally white.
-
-Run this shader:
-
-if (lex.bg == 0) {
-  lex.bg = ((x)%2) ? 15 : 14
-}
-
-Then set your brush to a white square.
-
-Run this shader w/ animate:
-
-if (lex.bg == 0) {
-  lex.bg = ((x)%2) ? 0 : 1
-}
-
-
->> glitch shader - produces odd combinations of fg/bg
-
-lex.char=String.fromCharCode(lex.char.charCodeAt(0)+1)
-lex.bg+=7
-lex.fg+=5
-
-
->> coogi x/y doodle
-
-xx=x
-t/=1000
-x/=w/2
-y/=h/2
-y-=1
-x-=1
-x*=x-sin(y/t)
-y*=1
-
-  lex.bg = 1 // gray( sin(x/(y/3-1)+t) + sin(y/4+t) )
-  lex.fg = hue( sin((y/5)+t) - cos(x*t) *5 )
-  lex.char = " _.,:;\"~|  "[Math.round(xx*(y+1+(x+t/102)/4)*13)%13]
-
-
->> dots / lines shader
-
-  xx = ((t/10*x)*y/10)%8
-  lex.bg = colors.black
-  lex.fg = green(x*3+y*5)
-  lex.char = ((xx%1) !== 0) ? " " : " .,;=+!@"[xx]
-
-
->> munching squares horizon
-
-t/=100
-y+=10
-x-=w/2
-x/=y/10
-lex.bg=hue((x^y)+t)
-
-
->> sharded glitch brush
-
-Example: http://asdf.us/z/kksnvs.png 
-
-Use on a brush:
-
-lex.bg = t/y/x
-lex.opacity = lex.bg % 1 ? 0 : 1
-
-
->> incremental brush
-
-Set your brush to be the ^ character, square, about 10x10
-Draw "char" only
-Then animate this shader on the canvas:
-
-if (lex.char=="^") {
-  lex.bg += 1
-  lex.char = " "
-}
-lex.bg += 1
-
-
->> copy color brushes
-
-Set to "animate brush", then use option+shift (alt+shift?) to
-copy color from the canvas. Brush will have "shape" of 
-copied color only.. can be a cool effect when used with fg/bg only.
-
-lex.opacity = lex.bg == colors.black ? 0 : 1
-
-
->> distressed texture brush
-
-Sample use of the "choice" function to get a random color.
-
-var char = choice("      abcdef      ")
-lex.bg = +choice("0124")
-lex.fg = +choice("01234")
-lex.char = char
-lex.opacity = char == " " ? 0 : 1
-
-
->> foggy terrain brush
-
-var char = choice("      abcdef      ")
-lex.bg = choice([14,15])
-lex.fg = choice("367")
-lex.char = char
-lex.opacity = char == " " ? 0 : 1
-
-
->> mirror brush (left-right)
-
-Animate this on the canvas, then draw:
-
-if (x > w/2) {
-  lex.assign( canvas.aa[y][w-x] )
-}
-
-
->> mirror brush (up-down)
-
-Animate this on the canvas, then draw:
-
-if (x > h/2) {
-  lex.assign( canvas.aa[h-y][x] )
-}
-
-
->> rainbow stardust brush
-
-Uncheck BG and animate this to brush:
-
-lex.fg = hue(t)
-lex.char = choice("            ,'.,.','******    ")
-
-