iif: renamed config to aces. added rrt 3dlut generation instructions

[OpenColorIO-Configs.git] / iif / luts / slog.py

diff --git a/iif/luts/slog.py b/iif/luts/slog.py
deleted file mode 100755 (executable)
index 86546e0..0000000
--- a/iif/luts/slog.py
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/usr/bin/env python
-
-import math
-
-# IT's annoying that the 1023,4 and 4095,16 almost, but dont exactly, cancel. UGH
-# The intent is clearly to have the same mapping, but it's not done very well.
-# Sony engineers and/or the Academy should pick one of these mappings for both.
-
-def SLog10_to_lin(x):
-    return (math.pow(10.0,(((((x*1023.0)/4.0-16.0)/219.0)-0.616596-0.03)/0.432699))-0.037584)*0.9
-
-def SLog12_to_lin(x):
-    return (math.pow(10.0,(((((x*4095.0)/16.0-16.0)/219.0)-0.616596-0.03)/0.432699))-0.037584)*0.9
-
-
-def WriteSPI1D(filename, fromMin, fromMax, data):
-    f = file(filename,'w')
-    f.write("Version 1\n")
-    f.write("From %s %s\n" % (fromMin, fromMax))
-    f.write("Length %d\n" % len(data))
-    f.write("Components 1\n")
-    f.write("{\n")
-    for value in data:
-        f.write("        %s\n" % value)
-    f.write("}\n")
-    f.close()
-
-def Fit(value, fromMin, fromMax, toMin, toMax):
-    if fromMin == fromMax:
-        raise ValueError("fromMin == fromMax")
-    return (value - fromMin) / (fromMax - fromMin) * (toMax - toMin) + toMin
-
-#
-# NOTE: The ctl matrix order is transposed compared to what OCIO expects
-#const float SGAMUT_TO_ACES_MTX[3][3] = {
-#      { 0.754338638,  0.021198141, -0.009756991 },
-#      #{ 0.133697046,  1.005410934,  0.004508563 },
-#      { 0.111968437, -0.026610548,  1.005253201 }
-
-NUM_SAMPLES = 2**11
-RANGE = (-0.125, 1.125)
-data = []
-for i in xrange(NUM_SAMPLES):
-    x = i/(NUM_SAMPLES-1.0)
-    x = Fit(x, 0.0, 1.0, RANGE[0], RANGE[1])
-    data.append(SLog10_to_lin(x))
-WriteSPI1D('slog10.spi1d', RANGE[0], RANGE[1], data)
-
-"""
-NUM_SAMPLES = 2**13
-RANGE = (-0.125, 1.125)
-data = []
-for i in xrange(NUM_SAMPLES):
-    x = i/(NUM_SAMPLES-1.0)
-    x = Fit(x, 0.0, 1.0, RANGE[0], RANGE[1])
-    data.append(SLog12_to_lin(x))
-WriteSPI1D('slog12.spi1d', RANGE[0], RANGE[1], data)
-"""