diff --git a/intern/cycles/doc/precompute/thin_film_table.py b/intern/cycles/doc/precompute/thin_film_table.py
new file mode 100644
index 00000000000..f280d40bb72
--- /dev/null
+++ b/intern/cycles/doc/precompute/thin_film_table.py
@@ -0,0 +1,514 @@
+# SPDX-FileCopyrightText: 2011-2025 Blender Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+import numpy as np
+from scipy.interpolate import CubicSpline
+
+# CIE 1931 2-degree XYZ CMFs
+CIEXYZ = np.array([
+    [359, 0, 0, 0],
+    [360, 0.0001299, 0.000003917, 0.0006061],
+    [361, 0.000145847, 0.000004393581, 0.0006808792],
+    [362, 0.0001638021, 0.000004929604, 0.0007651456],
+    [363, 0.0001840037, 0.000005532136, 0.0008600124],
+    [364, 0.0002066902, 0.000006208245, 0.0009665928],
+    [365, 0.0002321, 0.000006965, 0.001086],
+    [366, 0.000260728, 0.000007813219, 0.001220586],
+    [367, 0.000293075, 0.000008767336, 0.001372729],
+    [368, 0.000329388, 0.000009839844, 0.001543579],
+    [369, 0.000369914, 0.00001104323, 0.001734286],
+    [370, 0.0004149, 0.00001239, 0.001946],
+    [371, 0.0004641587, 0.00001388641, 0.002177777],
+    [372, 0.000518986, 0.00001555728, 0.002435809],
+    [373, 0.000581854, 0.00001744296, 0.002731953],
+    [374, 0.0006552347, 0.00001958375, 0.003078064],
+    [375, 0.0007416, 0.00002202, 0.003486],
+    [376, 0.0008450296, 0.00002483965, 0.003975227],
+    [377, 0.0009645268, 0.00002804126, 0.00454088],
+    [378, 0.001094949, 0.00003153104, 0.00515832],
+    [379, 0.001231154, 0.00003521521, 0.005802907],
+    [380, 0.001368, 0.000039, 0.006450001],
+    [381, 0.00150205, 0.0000428264, 0.007083216],
+    [382, 0.001642328, 0.0000469146, 0.007745488],
+    [383, 0.001802382, 0.0000515896, 0.008501152],
+    [384, 0.001995757, 0.0000571764, 0.009414544],
+    [385, 0.002236, 0.000064, 0.01054999],
+    [386, 0.002535385, 0.00007234421, 0.0119658],
+    [387, 0.002892603, 0.00008221224, 0.01365587],
+    [388, 0.003300829, 0.00009350816, 0.01558805],
+    [389, 0.003753236, 0.0001061361, 0.01773015],
+    [390, 0.004243, 0.00012, 0.02005001],
+    [391, 0.004762389, 0.000134984, 0.02251136],
+    [392, 0.005330048, 0.000151492, 0.02520288],
+    [393, 0.005978712, 0.000170208, 0.02827972],
+    [394, 0.006741117, 0.000191816, 0.03189704],
+    [395, 0.00765, 0.000217, 0.03621],
+    [396, 0.008751373, 0.0002469067, 0.04143771],
+    [397, 0.01002888, 0.00028124, 0.04750372],
+    [398, 0.0114217, 0.00031852, 0.05411988],
+    [399, 0.01286901, 0.0003572667, 0.06099803],
+    [400, 0.01431, 0.000396, 0.06785001],
+    [401, 0.01570443, 0.0004337147, 0.07448632],
+    [402, 0.01714744, 0.000473024, 0.08136156],
+    [403, 0.01878122, 0.000517876, 0.08915364],
+    [404, 0.02074801, 0.0005722187, 0.09854048],
+    [405, 0.02319, 0.00064, 0.1102],
+    [406, 0.02620736, 0.00072456, 0.1246133],
+    [407, 0.02978248, 0.0008255, 0.1417017],
+    [408, 0.03388092, 0.00094116, 0.1613035],
+    [409, 0.03846824, 0.00106988, 0.1832568],
+    [410, 0.04351, 0.00121, 0.2074],
+    [411, 0.0489956, 0.001362091, 0.2336921],
+    [412, 0.0550226, 0.001530752, 0.2626114],
+    [413, 0.0617188, 0.001720368, 0.2947746],
+    [414, 0.069212, 0.001935323, 0.3307985],
+    [415, 0.07763, 0.00218, 0.3713],
+    [416, 0.08695811, 0.0024548, 0.4162091],
+    [417, 0.09717672, 0.002764, 0.4654642],
+    [418, 0.1084063, 0.0031178, 0.5196948],
+    [419, 0.1207672, 0.0035264, 0.5795303],
+    [420, 0.13438, 0.004, 0.6456],
+    [421, 0.1493582, 0.00454624, 0.7184838],
+    [422, 0.1653957, 0.00515932, 0.7967133],
+    [423, 0.1819831, 0.00582928, 0.8778459],
+    [424, 0.198611, 0.00654616, 0.959439],
+    [425, 0.21477, 0.0073, 1.0390501],
+    [426, 0.2301868, 0.008086507, 1.1153673],
+    [427, 0.2448797, 0.00890872, 1.1884971],
+    [428, 0.2587773, 0.00976768, 1.2581233],
+    [429, 0.2718079, 0.01066443, 1.3239296],
+    [430, 0.2839, 0.0116, 1.3856],
+    [431, 0.2949438, 0.01257317, 1.4426352],
+    [432, 0.3048965, 0.01358272, 1.4948035],
+    [433, 0.3137873, 0.01462968, 1.5421903],
+    [434, 0.3216454, 0.01571509, 1.5848807],
+    [435, 0.3285, 0.01684, 1.62296],
+    [436, 0.3343513, 0.01800736, 1.6564048],
+    [437, 0.3392101, 0.01921448, 1.6852959],
+    [438, 0.3431213, 0.02045392, 1.7098745],
+    [439, 0.3461296, 0.02171824, 1.7303821],
+    [440, 0.34828, 0.023, 1.74706],
+    [441, 0.3495999, 0.02429461, 1.7600446],
+    [442, 0.3501474, 0.02561024, 1.7696233],
+    [443, 0.350013, 0.02695857, 1.7762637],
+    [444, 0.349287, 0.02835125, 1.7804334],
+    [445, 0.34806, 0.0298, 1.7826],
+    [446, 0.3463733, 0.03131083, 1.7829682],
+    [447, 0.3442624, 0.03288368, 1.7816998],
+    [448, 0.3418088, 0.03452112, 1.7791982],
+    [449, 0.3390941, 0.03622571, 1.7758671],
+    [450, 0.3362, 0.038, 1.77211],
+    [451, 0.3331977, 0.03984667, 1.7682589],
+    [452, 0.3300411, 0.041768, 1.764039],
+    [453, 0.3266357, 0.043766, 1.7589438],
+    [454, 0.3228868, 0.04584267, 1.7524663],
+    [455, 0.3187, 0.048, 1.7441],
+    [456, 0.3140251, 0.05024368, 1.7335595],
+    [457, 0.308884, 0.05257304, 1.7208581],
+    [458, 0.3032904, 0.05498056, 1.7059369],
+    [459, 0.2972579, 0.05745872, 1.6887372],
+    [460, 0.2908, 0.06, 1.6692],
+    [461, 0.2839701, 0.06260197, 1.6475287],
+    [462, 0.2767214, 0.06527752, 1.6234127],
+    [463, 0.2689178, 0.06804208, 1.5960223],
+    [464, 0.2604227, 0.07091109, 1.564528],
+    [465, 0.2511, 0.0739, 1.5281],
+    [466, 0.2408475, 0.077016, 1.4861114],
+    [467, 0.2298512, 0.0802664, 1.4395215],
+    [468, 0.2184072, 0.0836668, 1.3898799],
+    [469, 0.2068115, 0.0872328, 1.3387362],
+    [470, 0.19536, 0.09098, 1.28764],
+    [471, 0.1842136, 0.09491755, 1.2374223],
+    [472, 0.1733273, 0.09904584, 1.1878243],
+    [473, 0.1626881, 0.1033674, 1.1387611],
+    [474, 0.1522833, 0.1078846, 1.090148],
+    [475, 0.1421, 0.1126, 1.0419],
+    [476, 0.1321786, 0.117532, 0.9941976],
+    [477, 0.1225696, 0.1226744, 0.9473473],
+    [478, 0.1132752, 0.1279928, 0.9014531],
+    [479, 0.1042979, 0.1334528, 0.8566193],
+    [480, 0.09564, 0.13902, 0.8129501],
+    [481, 0.08729955, 0.1446764, 0.7705173],
+    [482, 0.07930804, 0.1504693, 0.7294448],
+    [483, 0.07171776, 0.1564619, 0.6899136],
+    [484, 0.06458099, 0.1627177, 0.6521049],
+    [485, 0.05795001, 0.1693, 0.6162],
+    [486, 0.05186211, 0.1762431, 0.5823286],
+    [487, 0.04628152, 0.1835581, 0.5504162],
+    [488, 0.04115088, 0.1912735, 0.5203376],
+    [489, 0.03641283, 0.199418, 0.4919673],
+    [490, 0.03201, 0.20802, 0.46518],
+    [491, 0.0279172, 0.2171199, 0.4399246],
+    [492, 0.0241444, 0.2267345, 0.4161836],
+    [493, 0.020687, 0.2368571, 0.3938822],
+    [494, 0.0175404, 0.2474812, 0.3729459],
+    [495, 0.0147, 0.2586, 0.3533],
+    [496, 0.01216179, 0.2701849, 0.3348578],
+    [497, 0.00991996, 0.2822939, 0.3175521],
+    [498, 0.00796724, 0.2950505, 0.3013375],
+    [499, 0.006296346, 0.308578, 0.2861686],
+    [500, 0.0049, 0.323, 0.272],
+    [501, 0.003777173, 0.3384021, 0.2588171],
+    [502, 0.00294532, 0.3546858, 0.2464838],
+    [503, 0.00242488, 0.3716986, 0.2347718],
+    [504, 0.002236293, 0.3892875, 0.2234533],
+    [505, 0.0024, 0.4073, 0.2123],
+    [506, 0.00292552, 0.4256299, 0.2011692],
+    [507, 0.00383656, 0.4443096, 0.1901196],
+    [508, 0.00517484, 0.4633944, 0.1792254],
+    [509, 0.00698208, 0.4829395, 0.1685608],
+    [510, 0.0093, 0.503, 0.1582],
+    [511, 0.01214949, 0.5235693, 0.1481383],
+    [512, 0.01553588, 0.544512, 0.1383758],
+    [513, 0.01947752, 0.56569, 0.1289942],
+    [514, 0.02399277, 0.5869653, 0.1200751],
+    [515, 0.0291, 0.6082, 0.1117],
+    [516, 0.03481485, 0.6293456, 0.1039048],
+    [517, 0.04112016, 0.6503068, 0.09666748],
+    [518, 0.04798504, 0.6708752, 0.08998272],
+    [519, 0.05537861, 0.6908424, 0.08384531],
+    [520, 0.06327, 0.71, 0.07824999],
+    [521, 0.07163501, 0.7281852, 0.07320899],
+    [522, 0.08046224, 0.7454636, 0.06867816],
+    [523, 0.08973996, 0.7619694, 0.06456784],
+    [524, 0.09945645, 0.7778368, 0.06078835],
+    [525, 0.1096, 0.7932, 0.05725001],
+    [526, 0.1201674, 0.8081104, 0.05390435],
+    [527, 0.1311145, 0.8224962, 0.05074664],
+    [528, 0.1423679, 0.8363068, 0.04775276],
+    [529, 0.1538542, 0.8494916, 0.04489859],
+    [530, 0.1655, 0.862, 0.04216],
+    [531, 0.1772571, 0.8738108, 0.03950728],
+    [532, 0.18914, 0.8849624, 0.03693564],
+    [533, 0.2011694, 0.8954936, 0.03445836],
+    [534, 0.2133658, 0.9054432, 0.03208872],
+    [535, 0.2257499, 0.9148501, 0.02984],
+    [536, 0.2383209, 0.9237348, 0.02771181],
+    [537, 0.2510668, 0.9320924, 0.02569444],
+    [538, 0.2639922, 0.9399226, 0.02378716],
+    [539, 0.2771017, 0.9472252, 0.02198925],
+    [540, 0.2904, 0.954, 0.0203],
+    [541, 0.3038912, 0.9602561, 0.01871805],
+    [542, 0.3175726, 0.9660074, 0.01724036],
+    [543, 0.3314384, 0.9712606, 0.01586364],
+    [544, 0.3454828, 0.9760225, 0.01458461],
+    [545, 0.3597, 0.9803, 0.0134],
+    [546, 0.3740839, 0.9840924, 0.01230723],
+    [547, 0.3886396, 0.9874182, 0.01130188],
+    [548, 0.4033784, 0.9903128, 0.01037792],
+    [549, 0.4183115, 0.9928116, 0.009529306],
+    [550, 0.4334499, 0.9949501, 0.008749999],
+    [551, 0.4487953, 0.9967108, 0.0080352],
+    [552, 0.464336, 0.9980983, 0.0073816],
+    [553, 0.480064, 0.999112, 0.0067854],
+    [554, 0.4959713, 0.9997482, 0.0062428],
+    [555, 0.5120501, 1, 0.005749999],
+    [556, 0.5282959, 0.9998567, 0.0053036],
+    [557, 0.5446916, 0.9993046, 0.0048998],
+    [558, 0.5612094, 0.9983255, 0.0045342],
+    [559, 0.5778215, 0.9968987, 0.0042024],
+    [560, 0.5945, 0.995, 0.0039],
+    [561, 0.6112209, 0.9926005, 0.0036232],
+    [562, 0.6279758, 0.9897426, 0.0033706],
+    [563, 0.6447602, 0.9864444, 0.0031414],
+    [564, 0.6615697, 0.9827241, 0.0029348],
+    [565, 0.6784, 0.9786, 0.002749999],
+    [566, 0.6952392, 0.9740837, 0.0025852],
+    [567, 0.7120586, 0.9691712, 0.0024386],
+    [568, 0.7288284, 0.9638568, 0.0023094],
+    [569, 0.7455188, 0.9581349, 0.0021968],
+    [570, 0.7621, 0.952, 0.0021],
+    [571, 0.7785432, 0.9454504, 0.002017733],
+    [572, 0.7948256, 0.9384992, 0.0019482],
+    [573, 0.8109264, 0.9311628, 0.0018898],
+    [574, 0.8268248, 0.9234576, 0.001840933],
+    [575, 0.8425, 0.9154, 0.0018],
+    [576, 0.8579325, 0.9070064, 0.001766267],
+    [577, 0.8730816, 0.8982772, 0.0017378],
+    [578, 0.8878944, 0.8892048, 0.0017112],
+    [579, 0.9023181, 0.8797816, 0.001683067],
+    [580, 0.9163, 0.87, 0.001650001],
+    [581, 0.9297995, 0.8598613, 0.001610133],
+    [582, 0.9427984, 0.849392, 0.0015644],
+    [583, 0.9552776, 0.838622, 0.0015136],
+    [584, 0.9672179, 0.8275813, 0.001458533],
+    [585, 0.9786, 0.8163, 0.0014],
+    [586, 0.9893856, 0.8047947, 0.001336667],
+    [587, 0.9995488, 0.793082, 0.00127],
+    [588, 1.0090892, 0.781192, 0.001205],
+    [589, 1.0180064, 0.7691547, 0.001146667],
+    [590, 1.0263, 0.757, 0.0011],
+    [591, 1.0339827, 0.7447541, 0.0010688],
+    [592, 1.040986, 0.7324224, 0.0010494],
+    [593, 1.047188, 0.7200036, 0.0010356],
+    [594, 1.0524667, 0.7074965, 0.0010212],
+    [595, 1.0567, 0.6949, 0.001],
+    [596, 1.0597944, 0.6822192, 0.00096864],
+    [597, 1.0617992, 0.6694716, 0.00092992],
+    [598, 1.0628068, 0.6566744, 0.00088688],
+    [599, 1.0629096, 0.6438448, 0.00084256],
+    [600, 1.0622, 0.631, 0.0008],
+    [601, 1.0607352, 0.6181555, 0.00076096],
+    [602, 1.0584436, 0.6053144, 0.00072368],
+    [603, 1.0552244, 0.5924756, 0.00068592],
+    [604, 1.0509768, 0.5796379, 0.00064544],
+    [605, 1.0456, 0.5668, 0.0006],
+    [606, 1.0390369, 0.5539611, 0.0005478667],
+    [607, 1.0313608, 0.5411372, 0.0004916],
+    [608, 1.0226662, 0.5283528, 0.0004354],
+    [609, 1.0130477, 0.5156323, 0.0003834667],
+    [610, 1.0026, 0.503, 0.00034],
+    [611, 0.9913675, 0.4904688, 0.0003072533],
+    [612, 0.9793314, 0.4780304, 0.00028316],
+    [613, 0.9664916, 0.4656776, 0.00026544],
+    [614, 0.9528479, 0.4534032, 0.0002518133],
+    [615, 0.9384, 0.4412, 0.00024],
+    [616, 0.923194, 0.42908, 0.0002295467],
+    [617, 0.907244, 0.417036, 0.00022064],
+    [618, 0.890502, 0.405032, 0.00021196],
+    [619, 0.87292, 0.393032, 0.0002021867],
+    [620, 0.8544499, 0.381, 0.00019],
+    [621, 0.835084, 0.3689184, 0.0001742133],
+    [622, 0.814946, 0.3568272, 0.00015564],
+    [623, 0.794186, 0.3447768, 0.00013596],
+    [624, 0.772954, 0.3328176, 0.0001168533],
+    [625, 0.7514, 0.321, 0.0001],
+    [626, 0.7295836, 0.3093381, 0.00008613333],
+    [627, 0.7075888, 0.2978504, 0.0000746],
+    [628, 0.6856022, 0.2865936, 0.000065],
+    [629, 0.6638104, 0.2756245, 0.00005693333],
+    [630, 0.6424, 0.265, 0.00004999999],
+    [631, 0.6215149, 0.2547632, 0.00004416],
+    [632, 0.6011138, 0.2448896, 0.00003948],
+    [633, 0.5811052, 0.2353344, 0.00003572],
+    [634, 0.5613977, 0.2260528, 0.00003264],
+    [635, 0.5419, 0.217, 0.00003],
+    [636, 0.5225995, 0.2081616, 0.00002765333],
+    [637, 0.5035464, 0.1995488, 0.00002556],
+    [638, 0.4847436, 0.1911552, 0.00002364],
+    [639, 0.4661939, 0.1829744, 0.00002181333],
+    [640, 0.4479, 0.175, 0.00002],
+    [641, 0.4298613, 0.1672235, 0.00001813333],
+    [642, 0.412098, 0.1596464, 0.0000162],
+    [643, 0.394644, 0.1522776, 0.0000142],
+    [644, 0.3775333, 0.1451259, 0.00001213333],
+    [645, 0.3608, 0.1382, 0.00001],
+    [646, 0.3444563, 0.1315003, 0.000007733333],
+    [647, 0.3285168, 0.1250248, 0.0000054],
+    [648, 0.3130192, 0.1187792, 0.0000032],
+    [649, 0.2980011, 0.1127691, 0.000001333333],
+    [650, 0.2835, 0.107, 0],
+    [651, 0.2695448, 0.1014762, 0],
+    [652, 0.2561184, 0.09618864, 0],
+    [653, 0.2431896, 0.09112296, 0],
+    [654, 0.2307272, 0.08626485, 0],
+    [655, 0.2187, 0.0816, 0],
+    [656, 0.2070971, 0.07712064, 0],
+    [657, 0.1959232, 0.07282552, 0],
+    [658, 0.1851708, 0.06871008, 0],
+    [659, 0.1748323, 0.06476976, 0],
+    [660, 0.1649, 0.061, 0],
+    [661, 0.1553667, 0.05739621, 0],
+    [662, 0.14623, 0.05395504, 0],
+    [663, 0.13749, 0.05067376, 0],
+    [664, 0.1291467, 0.04754965, 0],
+    [665, 0.1212, 0.04458, 0],
+    [666, 0.1136397, 0.04175872, 0],
+    [667, 0.106465, 0.03908496, 0],
+    [668, 0.09969044, 0.03656384, 0],
+    [669, 0.09333061, 0.03420048, 0],
+    [670, 0.0874, 0.032, 0],
+    [671, 0.08190096, 0.02996261, 0],
+    [672, 0.07680428, 0.02807664, 0],
+    [673, 0.07207712, 0.02632936, 0],
+    [674, 0.06768664, 0.02470805, 0],
+    [675, 0.0636, 0.0232, 0],
+    [676, 0.05980685, 0.02180077, 0],
+    [677, 0.05628216, 0.02050112, 0],
+    [678, 0.05297104, 0.01928108, 0],
+    [679, 0.04981861, 0.01812069, 0],
+    [680, 0.04677, 0.017, 0],
+    [681, 0.04378405, 0.01590379, 0],
+    [682, 0.04087536, 0.01483718, 0],
+    [683, 0.03807264, 0.01381068, 0],
+    [684, 0.03540461, 0.01283478, 0],
+    [685, 0.0329, 0.01192, 0],
+    [686, 0.03056419, 0.01106831, 0],
+    [687, 0.02838056, 0.01027339, 0],
+    [688, 0.02634484, 0.009533311, 0],
+    [689, 0.02445275, 0.008846157, 0],
+    [690, 0.0227, 0.00821, 0],
+    [691, 0.02108429, 0.007623781, 0],
+    [692, 0.01959988, 0.007085424, 0],
+    [693, 0.01823732, 0.006591476, 0],
+    [694, 0.01698717, 0.006138485, 0],
+    [695, 0.01584, 0.005723, 0],
+    [696, 0.01479064, 0.005343059, 0],
+    [697, 0.01383132, 0.004995796, 0],
+    [698, 0.01294868, 0.004676404, 0],
+    [699, 0.0121292, 0.004380075, 0],
+    [700, 0.01135916, 0.004102, 0],
+    [701, 0.01062935, 0.003838453, 0],
+    [702, 0.009938846, 0.003589099, 0],
+    [703, 0.009288422, 0.003354219, 0],
+    [704, 0.008678854, 0.003134093, 0],
+    [705, 0.008110916, 0.002929, 0],
+    [706, 0.007582388, 0.002738139, 0],
+    [707, 0.007088746, 0.002559876, 0],
+    [708, 0.006627313, 0.002393244, 0],
+    [709, 0.006195408, 0.002237275, 0],
+    [710, 0.005790346, 0.002091, 0],
+    [711, 0.005409826, 0.001953587, 0],
+    [712, 0.005052583, 0.00182458, 0],
+    [713, 0.004717512, 0.00170358, 0],
+    [714, 0.004403507, 0.001590187, 0],
+    [715, 0.004109457, 0.001484, 0],
+    [716, 0.003833913, 0.001384496, 0],
+    [717, 0.003575748, 0.001291268, 0],
+    [718, 0.003334342, 0.001204092, 0],
+    [719, 0.003109075, 0.001122744, 0],
+    [720, 0.002899327, 0.001047, 0],
+    [721, 0.002704348, 0.0009765896, 0],
+    [722, 0.00252302, 0.0009111088, 0],
+    [723, 0.002354168, 0.0008501332, 0],
+    [724, 0.002196616, 0.0007932384, 0],
+    [725, 0.00204919, 0.00074, 0],
+    [726, 0.00191096, 0.0006900827, 0],
+    [727, 0.001781438, 0.00064331, 0],
+    [728, 0.00166011, 0.000599496, 0],
+    [729, 0.001546459, 0.0005584547, 0],
+    [730, 0.001439971, 0.00052, 0],
+    [731, 0.001340042, 0.0004839136, 0],
+    [732, 0.001246275, 0.0004500528, 0],
+    [733, 0.001158471, 0.0004183452, 0],
+    [734, 0.00107643, 0.0003887184, 0],
+    [735, 0.0009999493, 0.0003611, 0],
+    [736, 0.0009287358, 0.0003353835, 0],
+    [737, 0.0008624332, 0.0003114404, 0],
+    [738, 0.0008007503, 0.0002891656, 0],
+    [739, 0.000743396, 0.0002684539, 0],
+    [740, 0.0006900786, 0.0002492, 0],
+    [741, 0.0006405156, 0.0002313019, 0],
+    [742, 0.0005945021, 0.0002146856, 0],
+    [743, 0.0005518646, 0.0001992884, 0],
+    [744, 0.000512429, 0.0001850475, 0],
+    [745, 0.0004760213, 0.0001719, 0],
+    [746, 0.0004424536, 0.0001597781, 0],
+    [747, 0.0004115117, 0.0001486044, 0],
+    [748, 0.0003829814, 0.0001383016, 0],
+    [749, 0.0003566491, 0.0001287925, 0],
+    [750, 0.0003323011, 0.00012, 0],
+    [751, 0.0003097586, 0.0001118595, 0],
+    [752, 0.0002888871, 0.0001043224, 0],
+    [753, 0.0002695394, 0.0000973356, 0],
+    [754, 0.0002515682, 0.00009084587, 0],
+    [755, 0.0002348261, 0.0000848, 0],
+    [756, 0.000219171, 0.00007914667, 0],
+    [757, 0.0002045258, 0.000073858, 0],
+    [758, 0.0001908405, 0.000068916, 0],
+    [759, 0.0001780654, 0.00006430267, 0],
+    [760, 0.0001661505, 0.00006, 0],
+    [761, 0.0001550236, 0.00005598187, 0],
+    [762, 0.0001446219, 0.0000522256, 0],
+    [763, 0.0001349098, 0.0000487184, 0],
+    [764, 0.000125852, 0.00004544747, 0],
+    [765, 0.000117413, 0.0000424, 0],
+    [766, 0.0001095515, 0.00003956104, 0],
+    [767, 0.0001022245, 0.00003691512, 0],
+    [768, 0.00009539445, 0.00003444868, 0],
+    [769, 0.0000890239, 0.00003214816, 0],
+    [770, 0.00008307527, 0.00003, 0],
+    [771, 0.00007751269, 0.00002799125, 0],
+    [772, 0.00007231304, 0.00002611356, 0],
+    [773, 0.00006745778, 0.00002436024, 0],
+    [774, 0.00006292844, 0.00002272461, 0],
+    [775, 0.00005870652, 0.0000212, 0],
+    [776, 0.00005477028, 0.00001977855, 0],
+    [777, 0.00005109918, 0.00001845285, 0],
+    [778, 0.00004767654, 0.00001721687, 0],
+    [779, 0.00004448567, 0.00001606459, 0],
+    [780, 0.00004150994, 0.00001499, 0],
+    [781, 0.00003873324, 0.00001398728, 0],
+    [782, 0.00003614203, 0.00001305155, 0],
+    [783, 0.00003372352, 0.00001217818, 0],
+    [784, 0.00003146487, 0.00001136254, 0],
+    [785, 0.00002935326, 0.0000106, 0],
+    [786, 0.00002737573, 0.000009885877, 0],
+    [787, 0.00002552433, 0.000009217304, 0],
+    [788, 0.00002379376, 0.000008592362, 0],
+    [789, 0.0000221787, 0.000008009133, 0],
+    [790, 0.00002067383, 0.0000074657, 0],
+    [791, 0.00001927226, 0.000006959567, 0],
+    [792, 0.0000179664, 0.000006487995, 0],
+    [793, 0.00001674991, 0.000006048699, 0],
+    [794, 0.00001561648, 0.000005639396, 0],
+    [795, 0.00001455977, 0.0000052578, 0],
+    [796, 0.00001357387, 0.000004901771, 0],
+    [797, 0.00001265436, 0.00000456972, 0],
+    [798, 0.00001179723, 0.000004260194, 0],
+    [799, 0.00001099844, 0.000003971739, 0],
+    [800, 0.00001025398, 0.0000037029, 0],
+    [801, 0.000009559646, 0.000003452163, 0],
+    [802, 0.000008912044, 0.000003218302, 0],
+    [803, 0.000008308358, 0.0000030003, 0],
+    [804, 0.000007745769, 0.000002797139, 0],
+    [805, 0.000007221456, 0.0000026078, 0],
+    [806, 0.000006732475, 0.00000243122, 0],
+    [807, 0.000006276423, 0.000002266531, 0],
+    [808, 0.000005851304, 0.000002113013, 0],
+    [809, 0.000005455118, 0.000001969943, 0],
+    [810, 0.000005085868, 0.0000018366, 0],
+    [811, 0.000004741466, 0.00000171223, 0],
+    [812, 0.000004420236, 0.000001596228, 0],
+    [813, 0.000004120783, 0.00000148809, 0],
+    [814, 0.000003841716, 0.000001387314, 0],
+    [815, 0.000003581652, 0.0000012934, 0],
+    [816, 0.000003339127, 0.00000120582, 0],
+    [817, 0.000003112949, 0.000001124143, 0],
+    [818, 0.000002902121, 0.000001048009, 0],
+    [819, 0.000002705645, 0.0000009770578, 0],
+    [820, 0.000002522525, 0.00000091093, 0],
+    [821, 0.000002351726, 0.0000008492513, 0],
+    [822, 0.000002192415, 0.0000007917212, 0],
+    [823, 0.000002043902, 0.0000007380904, 0],
+    [824, 0.000001905497, 0.0000006881098, 0],
+    [825, 0.000001776509, 0.00000064153, 0],
+    [826, 0.000001656215, 0.0000005980895, 0],
+    [827, 0.000001544022, 0.0000005575746, 0],
+    [828, 0.00000143944, 0.000000519808, 0],
+    [829, 0.000001341977, 0.0000004846123, 0],
+    [830, 0.000001251141, 0.00000045181, 0],
+    [831, 0, 0, 0],
+])
+
+# Interpolate CIE data
+cie_X = CubicSpline(CIEXYZ[:, 0], CIEXYZ[:, 1], extrapolate=False)
+cie_Y = CubicSpline(CIEXYZ[:, 0], CIEXYZ[:, 2], extrapolate=False)
+cie_Z = CubicSpline(CIEXYZ[:, 0], CIEXYZ[:, 3], extrapolate=False)
+
+
+def resample(func, freq): return np.nan_to_num(func(1000 / freq) / (freq * freq))
+
+
+endfreq = 60  # Cover 0 to 60 um
+N = 1022  # 1022 real datapoints result in 512 Fourier-space complex values.
+
+# Resample in frequency space
+freqs = np.linspace(0, np.pi * (N - 1) / endfreq, N)
+freqs = np.clip(freqs, a_min=1e-40, a_max=None)
+Sx = resample(cie_X, freqs)
+Sy = resample(cie_Y, freqs)
+Sz = resample(cie_Z, freqs)
+
+# Take FFT
+Sp_x = np.fft.rfft(Sx)
+Sp_y = np.fft.rfft(Sy)
+Sp_z = np.fft.rfft(Sz)
+
+# Print table
+print(f"static const float table_thin_film_cmf[{Sp_x.shape[0]}][6] = {{")
+for i in range(Sp_x.shape[0]):
+    vals = [Sp_x[i].real, Sp_y[i].real, Sp_z[i].real, Sp_x[i].imag, Sp_y[i].imag, Sp_z[i].imag]
+    print("  {" + ", ".join(f"{val: .7e}f" for val in vals) + " },")
+print("};")
diff --git a/intern/cycles/kernel/closure/bsdf_util.h b/intern/cycles/kernel/closure/bsdf_util.h
index 66792060b15..328bee63219 100644
--- a/intern/cycles/kernel/closure/bsdf_util.h
+++ b/intern/cycles/kernel/closure/bsdf_util.h
@@ -10,6 +10,7 @@
 #include "kernel/types.h"
 
 #include "kernel/util/colorspace.h"
+#include "kernel/util/lookup_table.h"
 
 #include "util/color.h"
 
@@ -351,20 +352,32 @@ ccl_device_inline Spectrum closure_layering_weight(const Spectrum layer_albedo,
  * transform and store them as a LUT that gets looked up here.
  * In practice, using the XYZ fit and converting the result from XYZ to RGB is easier.
  */
-ccl_device_inline Spectrum iridescence_lookup_sensitivity(const float OPD, const float shift)
+ccl_device_inline Spectrum iridescence_lookup_sensitivity(KernelGlobals kg,
+                                                          const float OPD,
+                                                          const float shift)
 {
-  const float phase = M_2PI_F * OPD * 1e-9f;
-  const float3 val = make_float3(5.4856e-13f, 4.4201e-13f, 5.2481e-13f);
-  const float3 pos = make_float3(1.6810e+06f, 1.7953e+06f, 2.2084e+06f);
-  const float3 var = make_float3(4.3278e+09f, 9.3046e+09f, 6.6121e+09f);
+  /* The LUT covers 0 to 60 um. */
+  float x = M_2PI_F * OPD / 60000.0f;
+  const int size = THIN_FILM_TABLE_SIZE;
 
-  float3 xyz = val * sqrt(M_2PI_F * var) * cos(pos * phase + shift) * exp(-sqr(phase) * var);
-  xyz.x += 1.64408e-8f * cosf(2.2399e+06f * phase + shift) * expf(-4.5282e+09f * sqr(phase));
-  return xyz / 1.0685e-7f;
+  const float3 mag = make_float3(
+      lookup_table_read(kg, x, kernel_data.tables.thin_film_table + 0 * size, size),
+      lookup_table_read(kg, x, kernel_data.tables.thin_film_table + 1 * size, size),
+      lookup_table_read(kg, x, kernel_data.tables.thin_film_table + 2 * size, size));
+  const float3 phase = make_float3(
+      lookup_table_read(kg, x, kernel_data.tables.thin_film_table + 3 * size, size),
+      lookup_table_read(kg, x, kernel_data.tables.thin_film_table + 4 * size, size),
+      lookup_table_read(kg, x, kernel_data.tables.thin_film_table + 5 * size, size));
+
+  return mag * cos(phase - shift);
 }
 
-ccl_device_inline float3 iridescence_airy_summation(
-    const float T121, const float R12, const float R23, const float OPD, const float phi)
+ccl_device_inline float3 iridescence_airy_summation(KernelGlobals kg,
+                                                    const float T121,
+                                                    const float R12,
+                                                    const float R23,
+                                                    const float OPD,
+                                                    const float phi)
 {
   if (R23 == 1.0f) {
     /* Shortcut for TIR on the bottom interface. */
@@ -381,7 +394,7 @@ ccl_device_inline float3 iridescence_airy_summation(
   /* Truncate after m=3, higher differences have barely any impact. */
   for (int m = 1; m < 4; m++) {
     Cm *= r123;
-    R += Cm * 2.0f * iridescence_lookup_sensitivity(m * OPD, m * phi);
+    R += Cm * 2.0f * iridescence_lookup_sensitivity(kg, m * OPD, m * phi);
   }
   return R;
 }
@@ -428,32 +441,11 @@ ccl_device Spectrum fresnel_iridescence(KernelGlobals kg,
   const float2 phi = make_float2(M_PI_F, M_PI_F) - phi12 + phi23;
 
   /* Perform Airy summation and average the polarizations. */
-  float3 R = mix(iridescence_airy_summation(T121.x, R12.x, R23.x, OPD, phi.x),
-                 iridescence_airy_summation(T121.y, R12.y, R23.y, OPD, phi.y),
+  float3 R = mix(iridescence_airy_summation(kg, T121.x, R12.x, R23.x, OPD, phi.x),
+                 iridescence_airy_summation(kg, T121.y, R12.y, R23.y, OPD, phi.y),
                  0.5f);
 
-  /* Color space conversion here is tricky.
-   * In theory, the correct thing would be to compute the spectral color matching functions
-   * for the RGB channels, take their Fourier transform in wavelength parametrization, and
-   * then use that in iridescence_lookup_sensitivity().
-   * To avoid this complexity, the code here instead uses the reference implementation's
-   * Gaussian fit of the CIE XYZ curves. However, this means that at this point, R is in
-   * XYZ values, not RGB.
-   * Additionally, since I is a reflectivity, not a luminance, the spectral color matching
-   * functions should be multiplied by the reference illuminant. Since the fit is based on
-   * the "raw" CIE XYZ curves, the reference illuminant implicitly is a constant spectrum,
-   * meaning Illuminant E.
-   * Therefore, we can't just use the regular XYZ->RGB conversion here, we need to include
-   * a chromatic adaption from E to whatever the white point of the working color space is.
-   * The proper way to do this would be a Von Kries-style transform, but to keep it simple,
-   * we just multiply by the white point here.
-   *
-   * NOTE: The reference implementation sidesteps all this by just hard-coding a XYZ->CIE RGB
-   * matrix. Since CIE RGB uses E as its white point, this sidesteps the chromatic adaption
-   * topic, but the primary colors don't match (unless you happen to actually work in CIE RGB.)
-   */
-  R *= make_float3(kernel_data.film.white_xyz);
-  return saturate(xyz_to_rgb(kg, R));
+  return saturate(R);
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/types.h b/intern/cycles/kernel/types.h
index 607cec6c6d8..06e1250ce7a 100644
--- a/intern/cycles/kernel/types.h
+++ b/intern/cycles/kernel/types.h
@@ -33,6 +33,7 @@ CCL_NAMESPACE_BEGIN
 #define FILTER_TABLE_SIZE 1024
 #define RAMP_TABLE_SIZE 256
 #define SHUTTER_TABLE_SIZE 256
+#define THIN_FILM_TABLE_SIZE 512
 
 #define BSSRDF_MIN_RADIUS 1e-8f
 #define BSSRDF_MAX_HITS 4
@@ -1433,7 +1434,7 @@ struct KernelTables {
   int sheen_ltc;
   int ggx_gen_schlick_ior_s;
   int ggx_gen_schlick_s;
-  int pad1;
+  int thin_film_table;
   int pad2;
 };
 static_assert_align(KernelTables, 16);
diff --git a/intern/cycles/scene/shader.cpp b/intern/cycles/scene/shader.cpp
index c8204ab1a87..ca67faf2b36 100644
--- a/intern/cycles/scene/shader.cpp
+++ b/intern/cycles/scene/shader.cpp
@@ -417,7 +417,7 @@ bool Shader::need_update_geometry() const
 
 /* Shader Manager */
 
-ShaderManager::ShaderManager()
+ShaderManager::ShaderManager() : thin_film_table_offset_(TABLE_OFFSET_INVALID)
 {
   update_flags = UPDATE_ALL;
 
@@ -629,6 +629,11 @@ void ShaderManager::device_update_common(Device * /*device*/,
   ktables->ggx_gen_schlick_ior_s = ensure_bsdf_table(dscene, scene, table_ggx_gen_schlick_ior_s);
   ktables->ggx_gen_schlick_s = ensure_bsdf_table(dscene, scene, table_ggx_gen_schlick_s);
 
+  if (thin_film_table_offset_ == TABLE_OFFSET_INVALID) {
+    thin_film_table_offset_ = scene->lookup_tables->add_table(dscene, thin_film_table);
+  }
+  dscene->data.tables.thin_film_table = (int)thin_film_table_offset_;
+
   /* integrator */
   KernelIntegrator *kintegrator = &dscene->data.integrator;
   kintegrator->use_volumes = has_volumes;
@@ -655,6 +660,8 @@ void ShaderManager::device_free_common(Device * /*device*/, DeviceScene *dscene,
     scene->lookup_tables->remove_table(&entry.second);
   }
   bsdf_tables.clear();
+  scene->lookup_tables->remove_table(&thin_film_table_offset_);
+  thin_film_table_offset_ = TABLE_OFFSET_INVALID;
 
   dscene->shaders.free();
 }
@@ -862,6 +869,79 @@ static bool to_scene_linear_transform(OCIO::ConstConfigRcPtr &config,
 }
 #endif
 
+void ShaderManager::compute_thin_film_table(const Transform &xyz_to_rgb)
+{
+  /* Our implementation of Thin Film Fresnel is based on
+   * "A Practical Extension to Microfacet Theory for the Modeling of Varying Iridescence"
+   * by Laurent Belcour and Pascal Barla
+   * (https://belcour.github.io/blog/research/publication/2017/05/01/brdf-thin-film.html).
+   *
+   * The idea there is that for a naive implementation of Thin Film interference, you'd compute
+   * the reflectivity for a given wavelength using Airy summation, and then numerically integrate
+   * the product of this reflectivity function and the Color Matching Functions of the colorspace
+   * you're working in to obtain the RGB (or XYZ) values.
+   * However, this integration would require too many evaluations to be practical.
+   * Therefore, they reformulate the computation as a rapidly converging series involving the
+   * Fourier transform of the CMFs.
+   *
+   * Specifically, we need to:
+   * - Compute the RGB CMFs from the XYZ CMFs using the working color space's XYZ-to-RGB matrix
+   * - Resample the RGB CMFs to be parametrized by frequency instead of wavelength as usual
+   * - Compute the FFT of the CMFs
+   * - Store the result as a LUT
+   * - Look up the values for each channel at runtime based on the optical path difference and
+   *   phase shift.
+   *
+   * Computing an FFT here would be annoying, so we'd like to precompute it, but we only know
+   * the XYZ-to-RGB matrix at runtime. Luckily, both resampling and FFT are linear operations,
+   * so we can precompute the FFT of the resampled XYZ CMFs and then multiply each entry with
+   * the XYZ-to-RGB matrix to get the RGB LUT.
+   *
+   * That's what this function does: We load the precomputed values, convert to RGB, normalize
+   * the result to make the DC term equal to 1, convert from real/imaginary to magnitude/phase
+   * since that form is smoother and therefore interpolates more nicely, and then store that
+   * into the final table that's used by the kernel.
+   */
+  assert(sizeof(table_thin_film_cmf) == 6 * THIN_FILM_TABLE_SIZE * sizeof(float));
+  thin_film_table.resize(6 * THIN_FILM_TABLE_SIZE);
+
+  float3 normalization;
+  float3 prevPhase = zero_float3();
+  for (int i = 0; i < THIN_FILM_TABLE_SIZE; i++) {
+    const float *table_row = table_thin_film_cmf[i];
+    /* Load precomputed resampled Fourier-transformed XYZ CMFs. */
+    const float3 xyzReal = make_float3(table_row[0], table_row[1], table_row[2]);
+    const float3 xyzImag = make_float3(table_row[3], table_row[4], table_row[5]);
+
+    /* Linearly combine precomputed data to produce the RGB equivalents. Works since both
+     * resampling and Fourier transformation are linear operations. */
+    const float3 rgbReal = transform_direction(&xyz_to_rgb, xyzReal);
+    const float3 rgbImag = transform_direction(&xyz_to_rgb, xyzImag);
+
+    /* We normalize all entries by the first element. Since that is the DC component, it normalizes
+     * the CMF (in non-Fourier space) to an area of 1. */
+    if (i == 0) {
+      normalization = 1.0f / rgbReal;
+    }
+
+    /* Convert the complex value into magnitude/phase representation. */
+    const float3 rgbMag = sqrt(sqr(rgbReal) + sqr(rgbImag));
+    float3 rgbPhase = atan2(rgbImag, rgbReal);
+
+    /* Unwrap phase to avoid jumps. */
+    rgbPhase -= M_2PI_F * round((rgbPhase - prevPhase) * M_1_2PI_F);
+    prevPhase = rgbPhase;
+
+    /* Store in lookup table. */
+    thin_film_table[i + 0 * THIN_FILM_TABLE_SIZE] = rgbMag.x * normalization.x;
+    thin_film_table[i + 1 * THIN_FILM_TABLE_SIZE] = rgbMag.y * normalization.y;
+    thin_film_table[i + 2 * THIN_FILM_TABLE_SIZE] = rgbMag.z * normalization.z;
+    thin_film_table[i + 3 * THIN_FILM_TABLE_SIZE] = rgbPhase.x;
+    thin_film_table[i + 4 * THIN_FILM_TABLE_SIZE] = rgbPhase.y;
+    thin_film_table[i + 5 * THIN_FILM_TABLE_SIZE] = rgbPhase.z;
+  }
+}
+
 void ShaderManager::init_xyz_transforms()
 {
   /* Default to ITU-BT.709 in case no appropriate transform found.
@@ -890,6 +970,8 @@ void ShaderManager::init_xyz_transforms()
   rec709_to_b = make_float3(0.0f, 0.0f, 1.0f);
   is_rec709 = true;
 
+  compute_thin_film_table(xyz_to_rec709);
+
 #ifdef WITH_OCIO
   /* Get from OpenColorO config if it has the required roles. */
   OCIO::ConstConfigRcPtr config = nullptr;
@@ -955,6 +1037,8 @@ void ShaderManager::init_xyz_transforms()
   rec709_to_g = make_float3(rec709_to_rgb.y);
   rec709_to_b = make_float3(rec709_to_rgb.z);
   is_rec709 = transform_equal_threshold(xyz_to_rgb, xyz_to_rec709, 0.0001f);
+
+  compute_thin_film_table(xyz_to_rgb);
 #endif
 }
 
diff --git a/intern/cycles/scene/shader.h b/intern/cycles/scene/shader.h
index 240e38e3115..054991c0b47 100644
--- a/intern/cycles/scene/shader.h
+++ b/intern/cycles/scene/shader.h
@@ -226,6 +226,7 @@ class ShaderManager {
   static thread_mutex lookup_table_mutex;
 
   unordered_map<const float *, size_t> bsdf_tables;
+  size_t thin_film_table_offset_;
 
   thread_spin_lock attribute_lock_;
 
@@ -238,6 +239,7 @@ class ShaderManager {
   float3 rec709_to_g;
   float3 rec709_to_b;
   bool is_rec709;
+  vector<float> thin_film_table;
 
   template<std::size_t n>
   size_t ensure_bsdf_table(DeviceScene *dscene, Scene *scene, const float (&table)[n])
@@ -249,6 +251,8 @@ class ShaderManager {
                                 const float *table,
                                 const size_t n);
 
+  void compute_thin_film_table(const Transform &xyz_to_rgb);
+
   uint get_graph_kernel_features(ShaderGraph *graph);
 
   virtual void device_update_specific(Device *device,
diff --git a/intern/cycles/scene/shader.tables b/intern/cycles/scene/shader.tables
index 88d7bc69611..9f350c15814 100644
--- a/intern/cycles/scene/shader.tables
+++ b/intern/cycles/scene/shader.tables
@@ -1282,4 +1282,521 @@ static const float table_ggx_gen_schlick_s[4096] = {
   0.000000f, 0.559516f, 0.644881f, 0.698590f, 0.736655f, 0.762997f, 0.778331f, 0.782183f, 0.773776f, 0.752689f, 0.719302f, 0.675070f, 0.622442f, 0.564517f, 0.504549f, 0.445448f
 };
 
+/* Precomputed color matching functions for the Thin Film Fresnel logic.
+ * Computed by intern/cycles/doc/precompute/thin_film_table.py. */
+static const float table_thin_film_cmf[512][6] = {
+  { 2.0432441e+00f,  2.0415664e+00f,  2.0443382e+00f,  0.0000000e+00f,  0.0000000e+00f,  0.0000000e+00f },
+  { 1.9983457e+00f,  1.9961237e+00f,  1.9758113e+00f, -4.2244055e-01f, -4.2709941e-01f, -5.2414345e-01f },
+  { 1.8657730e+00f,  1.8618661e+00f,  1.7748733e+00f, -8.2567141e-01f, -8.3496764e-01f, -1.0129641e+00f },
+  { 1.6517839e+00f,  1.6449087e+00f,  1.4551344e+00f, -1.1914287e+00f, -1.2052602e+00f, -1.4335444e+00f },
+  { 1.3664505e+00f,  1.3551257e+00f,  1.0382412e+00f, -1.5032892e+00f, -1.5213639e+00f, -1.7576118e+00f },
+  { 1.0231439e+00f,  1.0056903e+00f,  5.5239608e-01f, -1.7474670e+00f, -1.7691599e+00f, -1.9634589e+00f },
+  { 6.3785226e-01f,  6.1246104e-01f,  3.0429753e-02f, -1.9134691e+00f, -1.9376694e+00f, -2.0374132e+00f },
+  { 2.2837314e-01f,  1.9324515e-01f, -4.9243995e-01f, -1.9945763e+00f, -2.0195503e+00f, -1.9747546e+00f },
+  {-1.8657879e-01f, -2.3302751e-01f, -9.8100881e-01f, -1.9881260e+00f, -2.0114245e+00f, -1.7800190e+00f },
+  {-5.8829752e-01f, -6.4717933e-01f, -1.4024809e+00f, -1.8955839e+00f, -1.9140184e+00f, -1.4666694e+00f },
+  {-9.5899607e-01f, -1.0306680e+00f, -1.7286929e+00f, -1.7224040e+00f, -1.7321117e+00f, -1.0561559e+00f },
+  {-1.2826530e+00f, -1.3664357e+00f, -1.9380156e+00f, -1.4776888e+00f, -1.4742986e+00f, -5.7643396e-01f },
+  {-1.5457512e+00f, -1.6396851e+00f, -2.0168026e+00f, -1.1736708e+00f, -1.1525722e+00f, -6.0041806e-02f },
+  {-1.7378727e+00f, -1.8385453e+00f, -1.9602894e+00f, -8.2504850e-01f, -7.8175299e-01f,  4.5812867e-01f },
+  {-1.8521202e+00f, -1.9545976e+00f, -1.7728807e+00f, -4.4821419e-01f, -3.7879093e-01f,  9.4321297e-01f },
+  {-1.8853497e+00f, -1.9832377e+00f, -1.4678119e+00f, -6.0418966e-02f,  3.8027940e-02f,  1.3627436e+00f },
+  {-1.8382065e+00f, -1.9238573e+00f, -1.0662075e+00f,  3.2107950e-01f,  4.4992996e-01f,  1.6888449e+00f },
+  {-1.7149688e+00f, -1.7798393e+00f, -5.9560606e-01f,  6.7984063e-01f,  8.3851835e-01f,  1.9001043e+00f },
+  {-1.5232160e+00f, -1.5583684e+00f, -8.8054499e-02f,  1.0009933e+00f,  1.1866125e+00f,  1.9829921e+00f },
+  {-1.2733441e+00f, -1.2700663e+00f,  4.2209464e-01f,  1.2718800e+00f,  1.4790235e+00f,  1.9327349e+00f },
+  {-9.7796158e-01f, -9.2847205e-01f,  9.0053070e-01f,  1.4825635e+00f,  1.7032288e+00f,  1.7535869e+00f },
+  {-6.5120250e-01f, -5.4939275e-01f,  1.3153149e+00f,  1.6261747e+00f,  1.8499180e+00f,  1.4584828e+00f },
+  {-3.0799728e-01f, -1.5015632e-01f,  1.6390329e+00f,  1.6990923e+00f,  1.9133824e+00f,  1.0681005e+00f },
+  { 3.6658384e-02f,  2.5119728e-01f,  1.8506246e+00f,  1.7009524e+00f,  1.8917346e+00f,  6.0940198e-01f },
+  { 3.6839770e-01f,  6.3674791e-01f,  1.9367658e+00f,  1.6344969e+00f,  1.7869486e+00f,  1.1375585e-01f },
+  { 6.7410565e-01f,  9.8951101e-01f,  1.8927131e+00f,  1.5052792e+00f,  1.6047216e+00f, -3.8522651e-01f },
+  { 9.4244238e-01f,  1.2941994e+00f,  1.7225555e+00f,  1.3212505e+00f,  1.3541648e+00f, -8.5399079e-01f },
+  { 1.1642460e+00f,  1.5378964e+00f,  1.4388622e+00f,  1.0922564e+00f,  1.0473428e+00f, -1.2613167e+00f },
+  { 1.3328022e+00f,  1.7106100e+00f,  1.0617548e+00f,  8.2947778e-01f,  6.9868179e-01f, -1.5804164e+00f },
+  { 1.4439766e+00f,  1.8056844e+00f,  6.1747219e-01f,  5.4484789e-01f,  3.2427953e-01f, -1.7907115e+00f },
+  { 1.4962139e+00f,  1.8200513e+00f,  1.3653263e-01f,  2.5047951e-01f, -5.8852126e-02f, -1.8791707e+00f },
+  { 1.4904142e+00f,  1.7543134e+00f, -3.4837959e-01f, -4.1869429e-02f, -4.3357385e-01f, -1.8411195e+00f },
+  { 1.4297062e+00f,  1.6126567e+00f, -8.0465342e-01f, -3.2126679e-01f, -7.8339868e-01f, -1.6804729e+00f },
+  { 1.3191365e+00f,  1.4026008e+00f, -1.2019628e+00f, -5.7799515e-01f, -1.0932285e+00f, -1.4093790e+00f },
+  { 1.1653019e+00f,  1.1346008e+00f, -1.5142989e+00f, -8.0384679e-01f, -1.3500138e+00f, -1.0473059e+00f },
+  { 9.7594967e-01f,  8.2152143e-01f, -1.7216867e+00f, -9.9231935e-01f, -1.5433084e+00f, -6.1963942e-01f },
+  { 7.5957005e-01f,  4.7801150e-01f, -1.8114697e+00f, -1.1387137e+00f, -1.6656935e+00f, -1.5589309e-01f },
+  { 5.2500431e-01f,  1.1980806e-01f, -1.7790825e+00f, -1.2401410e+00f, -1.7130565e+00f,  3.1234259e-01f },
+  { 2.8108645e-01f, -2.3699499e-01f, -1.6282616e+00f, -1.2954513e+00f, -1.6847127e+00f,  7.5356784e-01f },
+  { 3.6332866e-02f, -5.7667995e-01f, -1.3706883e+00f, -1.3050983e+00f, -1.5833680e+00f,  1.1385088e+00f },
+  {-2.0131134e-01f, -8.8460619e-01f, -1.0250948e+00f, -1.2709581e+00f, -1.4149288e+00f,  1.4420744e+00f },
+  {-4.2466549e-01f, -1.1478470e+00f, -6.1590102e-01f, -1.1961206e+00f, -1.1881687e+00f,  1.6450027e+00f },
+  {-6.2744716e-01f, -1.3557347e+00f, -1.7148223e-01f, -1.0846679e+00f, -9.1427355e-01f,  1.7350885e+00f },
+  {-8.0435204e-01f, -1.5002911e+00f,  2.7781002e-01f, -9.4145691e-01f, -6.0628556e-01f,  1.7079141e+00f },
+  {-9.5108829e-01f, -1.5765262e+00f,  7.0173372e-01f, -7.7191607e-01f, -2.7847676e-01f,  1.5670382e+00f },
+  {-1.0643760e+00f, -1.5825941e+00f,  1.0722055e+00f, -5.8186478e-01f,  5.4319431e-02f,  1.3236399e+00f },
+  {-1.1419231e+00f, -1.5198029e+00f,  1.3651731e+00f, -3.7735860e-01f,  3.7738618e-01f,  9.9564770e-01f },
+  {-1.1823884e+00f, -1.3924819e+00f,  1.5621854e+00f, -1.6456084e-01f,  6.7677957e-01f,  6.0642239e-01f },
+  {-1.1853414e+00f, -1.2077152e+00f,  1.6515573e+00f,  5.0363107e-02f,  9.3993388e-01f,  1.8308900e-01f },
+  {-1.1512256e+00f, -9.7495711e-01f,  1.6290553e+00f,  2.6133453e-01f,  1.1561896e+00f, -2.4536154e-01f },
+  {-1.0813294e+00f, -7.0555117e-01f,  1.4980656e+00f,  4.6244065e-01f,  1.3172220e+00f, -6.5006818e-01f },
+  {-9.7776486e-01f, -4.1217580e-01f,  1.2692393e+00f,  6.4801253e-01f,  1.4173528e+00f, -1.0042546e+00f },
+  {-8.4345273e-01f, -1.0824467e-01f,  9.5964907e-01f,  8.1270879e-01f,  1.4537358e+00f, -1.2850104e+00f },
+  {-6.8210713e-01f,  1.9270996e-01f,  5.9152259e-01f,  9.5161115e-01f,  1.4264082e+00f, -1.4747784e+00f },
+  {-4.9821361e-01f,  4.7764253e-01f,  1.9064570e-01f,  1.0603350e+00f,  1.3382129e+00f, -1.5624532e+00f },
+  {-2.9699139e-01f,  7.3456088e-01f, -2.1544888e-01f,  1.1351553e+00f,  1.1945952e+00f, -1.5440205e+00f },
+  {-8.4331210e-02f,  9.5302983e-01f, -5.9938001e-01f,  1.1731450e+00f,  1.0032902e+00f, -1.4227019e+00f },
+  { 1.3329893e-01f,  1.1245906e+00f, -9.3577247e-01f,  1.1723192e+00f,  7.7391490e-01f, -1.2086047e+00f },
+  { 3.4898608e-01f,  1.2430799e+00f, -1.2029408e+00f,  1.1317772e+00f,  5.1748877e-01f, -9.1790852e-01f },
+  { 5.5554553e-01f,  1.3048366e+00f, -1.3842904e+00f,  1.0518287e+00f,  2.4590556e-01f, -5.7165359e-01f },
+  { 7.4573426e-01f,  1.3087911e+00f, -1.4693461e+00f,  9.3409459e-01f, -2.8618611e-02f, -1.9422008e-01f },
+  { 9.1250017e-01f,  1.2564357e+00f, -1.4543430e+00f,  7.8156655e-01f, -2.9409473e-01f,  1.8839061e-01f },
+  { 1.0492585e+00f,  1.1516825e+00f, -1.3423497e+00f,  5.9861591e-01f, -5.3928362e-01f,  5.5035187e-01f },
+  { 1.1501834e+00f,  1.0006168e+00f, -1.1429226e+00f,  3.9094060e-01f, -7.5416920e-01f,  8.6776069e-01f },
+  { 1.2104996e+00f,  8.1116278e-01f, -8.7132531e-01f,  1.6544448e-01f, -9.3036248e-01f,  1.1202203e+00f },
+  { 1.2267563e+00f,  5.9267670e-01f, -5.4737496e-01f, -6.9953557e-02f, -1.0614206e+00f,  1.2921516e+00f },
+  { 1.1970665e+00f,  3.5549054e-01f, -1.9400168e-01f, -3.0657838e-01f, -1.1430693e+00f,  1.3737496e+00f },
+  { 1.1212920e+00f,  1.1042641e-01f,  1.6437392e-01f, -5.3531819e-01f, -1.1733219e+00f,  1.3615258e+00f },
+  { 1.0011598e+00f, -1.3169469e-01f,  5.0353059e-01f, -7.4699270e-01f, -1.1524928e+00f,  1.2584088e+00f },
+  { 8.4029598e-01f, -3.6052796e-01f,  8.0108627e-01f, -9.3275389e-01f, -1.0831095e+00f,  1.0734048e+00f },
+  { 6.4416776e-01f, -5.6664303e-01f,  1.0379770e+00f, -1.0844993e+00f, -9.6972825e-01f,  8.2085191e-01f },
+  { 4.1993089e-01f, -7.4190697e-01f,  1.1996768e+00f, -1.1952759e+00f, -8.1866758e-01f,  5.1932608e-01f },
+  { 1.7618312e-01f, -8.7979709e-01f,  1.2770808e+00f, -1.2596514e+00f, -6.3767201e-01f,  1.9028363e-01f },
+  {-7.7368064e-02f, -9.7563188e-01f,  1.2669988e+00f, -1.2740302e+00f, -4.3552484e-01f, -1.4346270e-01f },
+  {-3.3031036e-01f, -1.0267129e+00f,  1.1722336e+00f, -1.2368933e+00f, -2.2162835e-01f, -4.5932511e-01f },
+  {-5.7198590e-01f, -1.0323741e+00f,  1.0012490e+00f, -1.1489455e+00f, -5.5713597e-03f, -7.3646999e-01f },
+  {-7.9198235e-01f, -9.9394013e-01f,  7.6745935e-01f, -1.0131562e+00f,  2.0329622e-01f, -9.5719159e-01f },
+  {-9.8063034e-01f, -9.1459847e-01f,  4.8819769e-01f, -8.3468791e-01f,  3.9626326e-01f, -1.1080396e+00f },
+  {-1.1294806e+00f, -7.9919398e-01f,  1.8344166e-01f, -6.2071170e-01f,  5.6561484e-01f, -1.1806290e+00f },
+  {-1.2317342e+00f, -6.5395828e-01f, -1.2561031e-01f, -3.8011503e-01f,  7.0493310e-01f, -1.1720846e+00f },
+  {-1.2826005e+00f, -4.8618790e-01f, -4.1801109e-01f, -1.2311506e-01f,  8.0933004e-01f, -1.0850982e+00f },
+  {-1.2795631e+00f, -3.0388743e-01f, -6.7448301e-01f,  1.3920474e-01f,  8.7560477e-01f, -9.2760429e-01f },
+  {-1.2225347e+00f, -1.1539486e-01f, -8.7868644e-01f,  3.9541135e-01f,  9.0232080e-01f, -7.1210573e-01f },
+  {-1.1138928e+00f,  7.0993893e-02f, -1.0182551e+00f,  6.3426588e-01f,  8.8980311e-01f, -4.5470461e-01f },
+  {-9.5839035e-01f,  2.4738445e-01f, -1.0855337e+00f,  8.4526531e-01f,  8.4005804e-01f, -1.7391199e-01f },
+  {-7.6294513e-01f,  4.0661235e-01f, -1.0779734e+00f,  1.0191532e+00f,  7.5662254e-01f,  1.1067586e-01f },
+  {-5.3631748e-01f,  5.4252691e-01f, -9.9816936e-01f,  1.1483718e+00f,  6.4435205e-01f,  3.7974078e-01f },
+  {-2.8869270e-01f,  6.5021980e-01f, -8.5354390e-01f,  1.2274310e+00f,  5.0915870e-01f,  6.1555056e-01f },
+  {-3.1189758e-02f,  7.2619043e-01f, -6.5570932e-01f,  1.2531733e+00f,  3.5771338e-01f,  8.0312342e-01f },
+  { 2.2467775e-01f,  7.6844319e-01f, -4.1956074e-01f,  1.2249211e+00f,  1.9712608e-01f,  9.3117260e-01f },
+  { 4.6755968e-01f,  7.7651504e-01f, -1.6216940e-01f,  1.1444985e+00f,  3.4619526e-02f,  9.9277230e-01f },
+  { 6.8681677e-01f,  7.5143485e-01f,  9.8442346e-02f,  1.0161250e+00f, -1.2278928e-01f,  9.8570674e-01f },
+  { 8.7302848e-01f,  6.9561901e-01f,  3.4455694e-01f,  8.4619062e-01f, -2.6858585e-01f,  9.1248705e-01f },
+  { 1.0184344e+00f,  6.1271050e-01f,  5.5996116e-01f,  6.4292096e-01f, -3.9702119e-01f,  7.8004400e-01f },
+  { 1.1172867e+00f,  5.0737059e-01f,  7.3100847e-01f,  4.1595516e-01f, -5.0333064e-01f,  5.9912679e-01f },
+  { 1.1660958e+00f,  3.8503450e-01f,  8.4747495e-01f,  1.7585715e-01f, -5.8390073e-01f,  3.8345755e-01f },
+  { 1.1637579e+00f,  2.5164294e-01f,  9.0315582e-01f, -6.6411461e-02f, -6.3637877e-01f,  1.4870667e-01f },
+  { 1.1115598e+00f,  1.1336271e-01f,  8.9616895e-01f, -3.0002887e-01f, -6.5972272e-01f, -8.8635391e-02f },
+  { 1.0130627e+00f, -2.3691242e-02f,  8.2895304e-01f, -5.1483222e-01f, -6.5419142e-01f, -3.1240913e-01f },
+  { 8.7387435e-01f, -1.5371977e-01f,  7.0796941e-01f, -7.0179143e-01f, -6.2127829e-01f, -5.0787998e-01f },
+  { 7.0132329e-01f, -2.7147861e-01f,  5.4313683e-01f, -8.5341381e-01f, -5.6359347e-01f, -6.6270150e-01f },
+  { 5.0405606e-01f, -3.7248294e-01f,  3.4704628e-01f, -9.6405989e-01f, -4.8470203e-01f, -7.6768544e-01f },
+  { 2.9157993e-01f, -4.5316989e-01f,  1.3401618e-01f, -1.0301565e+00f, -3.8892703e-01f, -8.1733133e-01f },
+  { 7.3777427e-02f, -5.1101350e-01f, -8.0941600e-02f, -1.0502990e+00f, -2.8112773e-01f, -8.1008637e-01f },
+  {-1.3958121e-01f, -5.4458907e-01f, -2.8317124e-01f, -1.0252407e+00f, -1.6646381e-01f, -7.4832606e-01f },
+  {-3.3930161e-01f, -5.5358621e-01f, -4.5936486e-01f, -9.5777500e-01f, -5.0156602e-02f, -6.3806535e-01f },
+  {-5.1718164e-01f, -5.3877224e-01f, -5.9843030e-01f, -8.5251915e-01f,  6.2741855e-02f, -4.8842886e-01f },
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+  {-3.1545190e-03f, -8.1920835e-04f,  3.9587310e-03f,  5.4134386e-03f, -1.6747799e-04f,  2.7260292e-03f },
+  {-1.9910016e-03f, -8.9994488e-04f,  4.4943820e-03f,  5.8369768e-03f, -3.7834237e-05f,  1.7401122e-03f },
+  {-7.8619899e-04f, -9.5857756e-04f,  4.7905450e-03f,  6.0155707e-03f,  1.2105679e-04f,  6.4828337e-04f },
+  { 4.0901549e-04f, -9.8598575e-04f,  4.8252977e-03f,  5.9500292e-03f,  3.0469228e-04f, -4.9205813e-04f },
+  { 1.5458475e-03f, -9.7418602e-04f,  4.5904882e-03f,  5.6516646e-03f,  5.0598893e-04f, -1.6185307e-03f },
+  { 2.5797556e-03f, -9.1701144e-04f,  4.0930084e-03f,  5.1414582e-03f,  7.1561183e-04f, -2.6671348e-03f },
+  { 3.4723610e-03f, -8.1069215e-04f,  3.3552158e-03f,  4.4487697e-03f,  9.2247208e-04f, -3.5759763e-03f },
+  { 4.1929966e-03f, -6.5429731e-04f,  2.4143962e-03f,  3.6096699e-03f,  1.1143635e-03f, -4.2891203e-03f },
+  { 4.7198206e-03f, -4.5000732e-04f,  1.3212284e-03f,  2.6649927e-03f,  1.2787008e-03f, -4.7603176e-03f },
+  { 5.0404454e-03f, -2.0319531e-04f,  1.3727926e-04f,  1.6582197e-03f,  1.4033141e-03f, -4.9563352e-03f },
+  { 5.1520623e-03f,  7.7691916e-05f, -1.0683617e-03f,  6.3331796e-04f,  1.4772514e-03f, -4.8596276e-03f },
+  { 5.0610736e-03f,  3.8145065e-04f, -2.2231312e-03f, -3.6734915e-04f,  1.4915403e-03f, -4.4701208e-03f },
+  { 4.7822705e-03f,  6.9462065e-04f, -3.2554816e-03f, -1.3049246e-03f,  1.4398596e-03f, -3.8059270e-03f },
+  { 4.3376236e-03f,  1.0021434e-03f, -4.0995225e-03f, -2.1456761e-03f,  1.3190800e-03f, -2.9028802e-03f },
+  { 3.7547723e-03f,  1.2881432e-03f, -4.6994949e-03f, -2.8622514e-03f,  1.1296374e-03f, -1.8128598e-03f },
+  { 3.0653148e-03f,  1.5367885e-03f, -5.0137560e-03f, -3.4345202e-03f,  8.7571146e-04f, -6.0096048e-04f },
+  { 2.3030099e-03f,  1.7331847e-03f, -5.0179698e-03f, -3.8499749e-03f,  5.6519592e-04f,  6.5834823e-04f },
+  { 1.5019998e-03f,  1.8642491e-03f, -4.7072446e-03f, -4.1036972e-03f,  2.0945583e-04f,  1.8858464e-03f },
+  { 6.9515775e-04f,  1.9195162e-03f, -4.0970201e-03f, -4.1979195e-03f, -1.7711996e-04f,  3.0026790e-03f },
+  {-8.7348532e-05f,  1.8918283e-03f, -3.2225948e-03f, -4.1412386e-03f, -5.7775052e-04f,  3.9356202e-03f },
+  {-8.1920829e-04f,  1.7778676e-03f, -2.1372743e-03f, -3.9475551e-03f, -9.7404853e-04f,  4.6221189e-03f },
+  {-1.4787856e-03f,  1.5784992e-03f, -9.0922512e-04f, -3.6348291e-03f, -1.3469200e-03f,  5.0147633e-03f },
+  {-2.0495823e-03f,  1.2988994e-03f,  3.8278764e-04f, -3.2237464e-03f, -1.6775320e-03f,  5.0848252e-03f },
+  {-2.5203501e-03f,  9.4845952e-04f,  1.6545091e-03f, -2.7363897e-03f, -1.9482969e-03f,  4.8246073e-03f },
+  {-2.8848800e-03f,  5.4046401e-04f,  2.8218133e-03f, -2.1950050e-03f, -2.1438214e-03f,  4.2483905e-03f },
+  {-3.1415201e-03f,  9.1555168e-05f,  3.8064466e-03f, -1.6209340e-03f, -2.2517688e-03f,  3.3918743e-03f },
+  {-3.2924860e-03f, -3.7899089e-04f,  4.5414887e-03f, -1.0337725e-03f, -2.2635867e-03f,  2.3101124e-03f },
+  {-3.3430416e-03f, -8.5014383e-04f,  4.9761381e-03f, -4.5078548e-04f, -2.1750598e-03f,  1.0740521e-03f },
+  {-3.3006303e-03f, -1.3001111e-03f,  5.0794615e-03f,  1.1340632e-04f, -1.9866558e-03f, -2.3410710e-04f },
+  {-3.1740342e-03f, -1.7073934e-03f,  4.8428202e-03f,  6.4688247e-04f, -1.7036418e-03f, -1.5264310e-03f },
+  {-2.9726308e-03f, -2.0518503e-03f,  4.2807699e-03f,  1.1402525e-03f, -1.3359619e-03f, -2.7152673e-03f },
+  {-2.7058010e-03f, -2.3157224e-03f,  3.4303415e-03f,  1.5863090e-03f, -8.9787673e-04f, -3.7193412e-03f },
+  {-2.3825261e-03f, -2.4845570e-03f,  2.3487241e-03f,  1.9795659e-03f, -4.0738166e-04f, -4.4694944e-03f },
+  {-2.0111896e-03f, -2.5479893e-03f,  1.1094883e-03f,  2.3157498e-03f,  1.1457374e-04f, -4.9136489e-03f },
+  {-1.5995787e-03f, -2.5003373e-03f, -2.0240242e-04f,  2.5913114e-03f,  6.4502647e-04f, -5.0206285e-03f },
+  {-1.1550609e-03f, -2.3409786e-03f, -1.4964519e-03f,  2.8030207e-03f,  1.1600578e-03f, -4.7825430e-03f },
+  {-6.8489383e-04f, -2.0744875e-03f, -2.6829549e-03f,  2.9476947e-03f,  1.6359165e-03f, -4.2155455e-03f },
+  {-1.9661330e-04f, -1.7105204e-03f, -3.6793337e-03f,  3.0220929e-03f,  2.0501536e-03f, -3.3588840e-03f },
+  { 3.0156322e-04f, -1.2634552e-03f, -4.4160314e-03f,  3.0229968e-03f,  2.3827127e-03f, -2.2722941e-03f },
+  { 8.0038103e-04f, -7.5179610e-04f, -4.8415307e-03f,  2.9474683e-03f,  2.6169214e-03f, -1.0319026e-03f },
+  { 1.2893008e-03f, -1.9737190e-04f, -4.9261255e-03f,  2.7932624e-03f,  2.7403353e-03f,  2.7508035e-04f },
+  { 1.7564093e-03f,  3.7563609e-04f, -4.6641589e-03f,  2.5593543e-03f,  2.7453920e-03f,  1.5565080e-03f },
+  { 2.1885218e-03f,  9.4179128e-04f, -4.0745505e-03f,  2.2465228e-03f,  2.6298395e-03f,  2.7218463e-03f },
+  { 2.5714952e-03f,  1.4755726e-03f, -3.1995585e-03f,  1.8579280e-03f,  2.3969190e-03f,  3.6886540e-03f },
+  { 2.8907456e-03f,  1.9525631e-03f, -2.1018516e-03f,  1.3996128e-03f,  2.0552885e-03f,  4.3885223e-03f },
+  { 3.1319469e-03f,  2.3506001e-03f, -8.6008992e-04f,  8.8086598e-04f,  1.6186902e-03f,  4.7720383e-03f },
+  { 3.2818684e-03f,  2.6508302e-03f,  4.3667602e-04f,  3.1438789e-04f,  1.1053736e-03f,  4.8124031e-03f },
+  { 3.3292901e-03f,  2.8386208e-03f,  1.6953864e-03f, -2.8378072e-04f,  5.3730232e-04f,  4.5074321e-03f },
+  { 3.2659258e-03f,  2.9042803e-03f,  2.8256750e-03f, -8.9459237e-04f, -6.0822043e-05f,  3.8797810e-03f },
+  { 3.0872787e-03f,  2.8435547e-03f,  3.7464063e-03f, -1.4965909e-03f, -6.6267179e-04f,  2.9753700e-03f },
+  { 2.7933517e-03f,  2.6578732e-03f,  4.3915671e-03f, -2.0667546e-03f, -1.2414905e-03f,  1.8601117e-03f },
+  { 2.3891455e-03f,  2.3543314e-03f,  4.7150811e-03f, -2.5815436e-03f, -1.7713193e-03f,  6.1517221e-04f },
+  { 1.8848863e-03f,  1.9454103e-03f,  4.6941870e-03f, -3.0180919e-03f, -2.2281946e-03f, -6.6889289e-04f },
+  { 1.2959455e-03f,  1.4484432e-03f,  4.3311273e-03f, -3.3554695e-03f, -2.5912608e-03f, -1.8987060e-03f },
+  { 6.4243404e-04f,  8.8485466e-04f,  3.6530181e-03f, -3.5759298e-03f, -2.8437455e-03f, -2.9848575e-03f },
+  {-5.1522699e-05f,  2.7920585e-04f,  2.7099022e-03f, -3.6660567e-03f, -2.9737507e-03f, -3.8484232e-03f },
+  {-7.5879860e-04f, -3.4191023e-04f,  1.5711222e-03f, -3.6177249e-03f, -2.9748223e-03f, -4.4267290e-03f },
+  {-1.4505177e-03f, -9.5107179e-04f,  3.2027583e-04f, -3.4288023e-03f, -2.8462710e-03f, -4.6779387e-03f },
+  {-2.0974700e-03f, -1.5212744e-03f, -9.5087992e-04f, -3.1035332e-03f, -2.5932278e-03f, -4.5841242e-03f },
+  {-2.6716079e-03f, -2.0271618e-03f, -2.1491315e-03f, -2.6525671e-03f, -2.2264316e-03f, -4.1525901e-03f },
+  {-3.1475288e-03f, -2.4461849e-03f, -3.1866255e-03f, -2.0926161e-03f, -1.7617580e-03f, -3.4153512e-03f },
+  {-3.5038492e-03f, -2.7596336e-03f, -3.9873000e-03f, -1.4457546e-03f, -1.2195105e-03f, -2.4267990e-03f },
+  {-3.7243815e-03f, -2.9534944e-03f, -4.4924559e-03f, -7.3839512e-04f, -6.2350629e-04f, -1.2597263e-03f },
+  {-3.7990349e-03f, -3.0190934e-03f, -4.6650592e-03f,  0.0000000e+00f,  0.0000000e+00f,  0.0000000e+00f },
+};
+
 CCL_NAMESPACE_END
diff --git a/intern/cycles/util/math_float3.h b/intern/cycles/util/math_float3.h
index c6355b9b186..8faa217f716 100644
--- a/intern/cycles/util/math_float3.h
+++ b/intern/cycles/util/math_float3.h
@@ -399,6 +399,16 @@ ccl_device_inline float3 cos(const float3 v)
   return make_float3(cosf(v.x), cosf(v.y), cosf(v.z));
 }
 
+ccl_device_inline float3 atan2(const float3 y, const float3 x)
+{
+  return make_float3(atan2f(y.x, x.x), atan2f(y.y, x.y), atan2f(y.z, x.z));
+}
+
+ccl_device_inline float3 round(const float3 a)
+{
+  return make_float3(roundf(a.x), roundf(a.y), roundf(a.z));
+}
+
 ccl_device_inline float3 reflect(const float3 incident, const float3 unit_normal)
 {
   return incident - 2.0f * unit_normal * dot(incident, unit_normal);
diff --git a/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_reflection.png b/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_reflection.png
index 04140dd7237..4027eec21fd 100644
--- a/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_reflection.png
+++ b/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_reflection.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:f8229f20625373319d82b684e5e4d9fefd50d6812bce4177a979d76b67297d5f
-size 28539
+oid sha256:5a8d9b7bd4b5191ce399311d55f8fbcae72daf4df91b2ff721240683187f60c1
+size 28511
diff --git a/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_transmission.png b/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_transmission.png
index dec14bb7609..823dff0ed75 100644
--- a/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_transmission.png
+++ b/tests/files/render/principled_bsdf/cycles_renders/principled_bsdf_thinfilm_transmission.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:173f0626fd3a1b7a9df57a1de45a29b453358b99a5f8b4a6f00ea6772f56973e
-size 31436
+oid sha256:946489634005eb0d7ea68a77845e19006249843786ee5c03f2bc4c09401390b1
+size 31312
diff --git a/tests/files/render/render_layer/cycles_renders/render_passes_thinfilm_color.png b/tests/files/render/render_layer/cycles_renders/render_passes_thinfilm_color.png
index 71725a0b6b2..fdcc127e2e8 100644
--- a/tests/files/render/render_layer/cycles_renders/render_passes_thinfilm_color.png
+++ b/tests/files/render/render_layer/cycles_renders/render_passes_thinfilm_color.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d90599a683c8dc1802cc3d2cbc8e5b85e7924fff3c6b2cc1ee8f9dfce0ac6d94
-size 13748
+oid sha256:529cbe7f7c69a8095d6c0323dfba61f62a9ce379d5cc4ab37f96f3b86ee6e0f8
+size 13838