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lump

rerere284 Apr 12th, 2016 (edited) 179 Never
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  1. --made by rerere284
  2. function init()
  3.     setName("Lump")
  4.     setDesc("Hill shaped equation near zero")
  5.     --Lump is a better name, but it seems more hill shaped.
  6.     setSize(100, 24+64+8+8+18+18+18+18+7+4)
  7.     addOutput(24+32)
  8.     addInputParameter("Number", "Equation Input", 24+64+8+8, 1, -1, -1)
  9.     addParameter("Multiplier", "Multiplies input", 24+64+8+8+18, 100, -1, -1)
  10.     addParameter("Shift Input", "Higher means softer", 24+64+8+8+18+18, 1, 1, -1)
  11.     addParameter("Height", "Height of lump, though height is affected by other values too", 24+64+8+8+18+18+18, 1, -1, -1)
  12.     addParameter("Offset", "Moves lump sideways", 24+64+8+8+18+18+18+18, 0, -1, -1)
  13. end
  14.  
  15. function apply()
  16.     tileSize = getTileSize()
  17.     mlt  = getValue(1, x, y, 100.0)
  18.     shft = getValue(2, x, y, 100.0) / 10
  19.     hght = getValue(3, x, y, 100.0) / 10
  20.     ofst = getValue(4, x, y, 100.0)
  21.     for i=0, tileSize*tileSize-1 do
  22.         x = i%tileSize
  23.         y = math.floor(i/tileSize)
  24.         ar, ag, ab = getValue(0, x, y, 100.0) --get pixel at that location
  25.         fr = hght/((((ar-ofst)*mlt)^2)+shft)
  26.         fg = hght/((((ag-ofst)*mlt)^2)+shft)
  27.         fb = hght/((((ab-ofst)*mlt)^2)+shft)
  28.         setPixel(0, x, y, fr, fg, fb)
  29.     end
  30. end
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