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const.h
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const.h
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#include <iostream>
#include <math.h>
#include <eigen3/Eigen/Dense>
#include <GLFW/glfw3.h>
#include <stdio.h>
#include <string.h>
using namespace std;
using Eigen::Vector2f;
using Eigen::Vector3f;
/* Simulation parameters */
#define TIMESTEP 0.25
#define DIM 512
#define RES 512
#define VISCOSITY 1
#define RADIUS (DIM * DIM)
#define DECAY_RATE 2.0
/* CUDA kernal parameters */
#define BLOCKSIZEY 1
#define BLOCKSIZEX (512 / BLOCKSIZEY)
#define IND(x, y, d) int((y) * (d) + (x))
#define CLAMP(x) ((x < 0.0) ? 0.0 : (x > 4.0) ? 4.0 : x)
#define VIRIDIS {{0.267004, 0.004874, 0.329415}, {0.268510, 0.009605, 0.335427}, {0.269944, 0.014625, 0.341379}, {0.271305, 0.019942, 0.347269}, {0.272594, 0.025563, 0.353093}, {0.273809, 0.031497, 0.358853}, {0.274952, 0.037752, 0.364543}, {0.276022, 0.044167, 0.370164}, {0.277018, 0.050344, 0.375715}, {0.277941, 0.056324, 0.381191}, {0.278791, 0.062145, 0.386592}, {0.279566, 0.067836, 0.391917}, {0.280267, 0.073417, 0.397163}, {0.280894, 0.078907, 0.402329}, {0.281446, 0.084320, 0.407414}, {0.281924, 0.089666, 0.412415}, {0.282327, 0.094955, 0.417331}, {0.282656, 0.100196, 0.422160}, {0.282910, 0.105393, 0.426902}, {0.283091, 0.110553, 0.431554}, {0.283197, 0.115680, 0.436115}, {0.283229, 0.120777, 0.440584}, {0.283187, 0.125848, 0.444960}, {0.283072, 0.130895, 0.449241}, {0.282884, 0.135920, 0.453427}, {0.282623, 0.140926, 0.457517}, {0.282290, 0.145912, 0.461510}, {0.281887, 0.150881, 0.465405}, {0.281412, 0.155834, 0.469201}, {0.280868, 0.160771, 0.472899}, {0.280255, 0.165693, 0.476498}, {0.279574, 0.170599, 0.479997}, {0.278826, 0.175490, 0.483397}, {0.278012, 0.180367, 0.486697}, {0.277134, 0.185228, 0.489898}, {0.276194, 0.190074, 0.493001}, {0.275191, 0.194905, 0.496005}, {0.274128, 0.199721, 0.498911}, {0.273006, 0.204520, 0.501721}, {0.271828, 0.209303, 0.504434}, {0.270595, 0.214069, 0.507052}, {0.269308, 0.218818, 0.509577}, {0.267968, 0.223549, 0.512008}, {0.266580, 0.228262, 0.514349}, {0.265145, 0.232956, 0.516599}, {0.263663, 0.237631, 0.518762}, {0.262138, 0.242286, 0.520837}, {0.260571, 0.246922, 0.522828}, {0.258965, 0.251537, 0.524736}, {0.257322, 0.256130, 0.526563}, {0.255645, 0.260703, 0.528312}, {0.253935, 0.265254, 0.529983}, {0.252194, 0.269783, 0.531579}, {0.250425, 0.274290, 0.533103}, {0.248629, 0.278775, 0.534556}, {0.246811, 0.283237, 0.535941}, {0.244972, 0.287675, 0.537260}, {0.243113, 0.292092, 0.538516}, {0.241237, 0.296485, 0.539709}, {0.239346, 0.300855, 0.540844}, {0.237441, 0.305202, 0.541921}, {0.235526, 0.309527, 0.542944}, {0.233603, 0.313828, 0.543914}, {0.231674, 0.318106, 0.544834}, {0.229739, 0.322361, 0.545706}, {0.227802, 0.326594, 0.546532}, {0.225863, 0.330805, 0.547314}, {0.223925, 0.334994, 0.548053}, {0.221989, 0.339161, 0.548752}, {0.220057, 0.343307, 0.549413}, {0.218130, 0.347432, 0.550038}, {0.216210, 0.351535, 0.550627}, {0.214298, 0.355619, 0.551184}, {0.212395, 0.359683, 0.551710}, {0.210503, 0.363727, 0.552206}, {0.208623, 0.367752, 0.552675}, {0.206756, 0.371758, 0.553117}, {0.204903, 0.375746, 0.553533}, {0.203063, 0.379716, 0.553925}, {0.201239, 0.383670, 0.554294}, {0.199430, 0.387607, 0.554642}, {0.197636, 0.391528, 0.554969}, {0.195860, 0.395433, 0.555276}, {0.194100, 0.399323, 0.555565}, {0.192357, 0.403199, 0.555836}, {0.190631, 0.407061, 0.556089}, {0.188923, 0.410910, 0.556326}, {0.187231, 0.414746, 0.556547}, {0.185556, 0.418570, 0.556753}, {0.183898, 0.422383, 0.556944}, {0.182256, 0.426184, 0.557120}, {0.180629, 0.429975, 0.557282}, {0.179019, 0.433756, 0.557430}, {0.177423, 0.437527, 0.557565}, {0.175841, 0.441290, 0.557685}, {0.174274, 0.445044, 0.557792}, {0.172719, 0.448791, 0.557885}, {0.171176, 0.452530, 0.557965}, {0.169646, 0.456262, 0.558030}, {0.168126, 0.459988, 0.558082}, {0.166617, 0.463708, 0.558119}, {0.165117, 0.467423, 0.558141}, {0.163625, 0.471133, 0.558148}, {0.162142, 0.474838, 0.558140}, {0.160665, 0.478540, 0.558115}, {0.159194, 0.482237, 0.558073}, {0.157729, 0.485932, 0.558013}, {0.156270, 0.489624, 0.557936}, {0.154815, 0.493313, 0.557840}, {0.153364, 0.497000, 0.557724}, {0.151918, 0.500685, 0.557587}, {0.150476, 0.504369, 0.557430}, {0.149039, 0.508051, 0.557250}, {0.147607, 0.511733, 0.557049}, {0.146180, 0.515413, 0.556823}, {0.144759, 0.519093, 0.556572}, {0.143343, 0.522773, 0.556295}, {0.141935, 0.526453, 0.555991}, {0.140536, 0.530132, 0.555659}, {0.139147, 0.533812, 0.555298}, {0.137770, 0.537492, 0.554906}, {0.136408, 0.541173, 0.554483}, {0.135066, 0.544853, 0.554029}, {0.133743, 0.548535, 0.553541}, {0.132444, 0.552216, 0.553018}, {0.131172, 0.555899, 0.552459}, {0.129933, 0.559582, 0.551864}, {0.128729, 0.563265, 0.551229}, {0.127568, 0.566949, 0.550556}, {0.126453, 0.570633, 0.549841}, {0.125394, 0.574318, 0.549086}, {0.124395, 0.578002, 0.548287}, {0.123463, 0.581687, 0.547445}, {0.122606, 0.585371, 0.546557}, {0.121831, 0.589055, 0.545623}, {0.121148, 0.592739, 0.544641}, {0.120565, 0.596422, 0.543611}, {0.120092, 0.600104, 0.542530}, {0.119738, 0.603785, 0.541400}, {0.119512, 0.607464, 0.540218}, {0.119423, 0.611141, 0.538982}, {0.119483, 0.614817, 0.537692}, {0.119699, 0.618490, 0.536347}, {0.120081, 0.622161, 0.534946}, {0.120638, 0.625828, 0.533488}, {0.121380, 0.629492, 0.531973}, {0.122312, 0.633153, 0.530398}, {0.123444, 0.636809, 0.528763}, {0.124780, 0.640461, 0.527068}, {0.126326, 0.644107, 0.525311}, {0.128087, 0.647749, 0.523491}, {0.130067, 0.651384, 0.521608}, {0.132268, 0.655014, 0.519661}, {0.134692, 0.658636, 0.517649}, {0.137339, 0.662252, 0.515571}, {0.140210, 0.665859, 0.513427}, {0.143303, 0.669459, 0.511215}, {0.146616, 0.673050, 0.508936}, {0.150148, 0.676631, 0.506589}, {0.153894, 0.680203, 0.504172}, {0.157851, 0.683765, 0.501686}, {0.162016, 0.687316, 0.499129}, {0.166383, 0.690856, 0.496502}, {0.170948, 0.694384, 0.493803}, {0.175707, 0.697900, 0.491033}, {0.180653, 0.701402, 0.488189}, {0.185783, 0.704891, 0.485273}, {0.191090, 0.708366, 0.482284}, {0.196571, 0.711827, 0.479221}, {0.202219, 0.715272, 0.476084}, {0.208030, 0.718701, 0.472873}, {0.214000, 0.722114, 0.469588}, {0.220124, 0.725509, 0.466226}, {0.226397, 0.728888, 0.462789}, {0.232815, 0.732247, 0.459277}, {0.239374, 0.735588, 0.455688}, {0.246070, 0.738910, 0.452024}, {0.252899, 0.742211, 0.448284}, {0.259857, 0.745492, 0.444467}, {0.266941, 0.748751, 0.440573}, {0.274149, 0.751988, 0.436601}, {0.281477, 0.755203, 0.432552}, {0.288921, 0.758394, 0.428426}, {0.296479, 0.761561, 0.424223}, {0.304148, 0.764704, 0.419943}, {0.311925, 0.767822, 0.415586}, {0.319809, 0.770914, 0.411152}, {0.327796, 0.773980, 0.406640}, {0.335885, 0.777018, 0.402049}, {0.344074, 0.780029, 0.397381}, {0.352360, 0.783011, 0.392636}, {0.360741, 0.785964, 0.387814}, {0.369214, 0.788888, 0.382914}, {0.377779, 0.791781, 0.377939}, {0.386433, 0.794644, 0.372886}, {0.395174, 0.797475, 0.367757}, {0.404001, 0.800275, 0.362552}, {0.412913, 0.803041, 0.357269}, {0.421908, 0.805774, 0.351910}, {0.430983, 0.808473, 0.346476}, {0.440137, 0.811138, 0.340967}, {0.449368, 0.813768, 0.335384}, {0.458674, 0.816363, 0.329727}, {0.468053, 0.818921, 0.323998}, {0.477504, 0.821444, 0.318195}, {0.487026, 0.823929, 0.312321}, {0.496615, 0.826376, 0.306377}, {0.506271, 0.828786, 0.300362}, {0.515992, 0.831158, 0.294279}, {0.525776, 0.833491, 0.288127}, {0.535621, 0.835785, 0.281908}, {0.545524, 0.838039, 0.275626}, {0.555484, 0.840254, 0.269281}, {0.565498, 0.842430, 0.262877}, {0.575563, 0.844566, 0.256415}, {0.585678, 0.846661, 0.249897}, {0.595839, 0.848717, 0.243329}, {0.606045, 0.850733, 0.236712}, {0.616293, 0.852709, 0.230052}, {0.626579, 0.854645, 0.223353}, {0.636902, 0.856542, 0.216620}, {0.647257, 0.858400, 0.209861}, {0.657642, 0.860219, 0.203082}, {0.668054, 0.861999, 0.196293}, {0.678489, 0.863742, 0.189503}, {0.688944, 0.865448, 0.182725}, {0.699415, 0.867117, 0.175971}, {0.709898, 0.868751, 0.169257}, {0.720391, 0.870350, 0.162603}, {0.730889, 0.871916, 0.156029}, {0.741388, 0.873449, 0.149561}, {0.751884, 0.874951, 0.143228}, {0.762373, 0.876424, 0.137064}, {0.772852, 0.877868, 0.131109}, {0.783315, 0.879285, 0.125405}, {0.793760, 0.880678, 0.120005}, {0.804182, 0.882046, 0.114965}, {0.814576, 0.883393, 0.110347}, {0.824940, 0.884720, 0.106217}, {0.835270, 0.886029, 0.102646}, {0.845561, 0.887322, 0.099702}, {0.855810, 0.888601, 0.097452}, {0.866013, 0.889868, 0.095953}, {0.876168, 0.891125, 0.095250}, {0.886271, 0.892374, 0.095374}, {0.896320, 0.893616, 0.096335}, {0.906311, 0.894855, 0.098125}, {0.916242, 0.896091, 0.100717}, {0.926106, 0.897330, 0.104071}, {0.935904, 0.898570, 0.108131}, {0.945636, 0.899815, 0.112838}, {0.955300, 0.901065, 0.118128}, {0.964894, 0.902323, 0.123941}, {0.974417, 0.903590, 0.130215}, {0.983868, 0.904867, 0.136897}, {0.993248, 0.906157, 0.143936}};