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Suppressed perlin1d, added perlin 2,3,4 and simplex 2 classes + minor

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fixes/optimisations on noisemachine
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Remi Beges
2012-05-30 19:30:51 +02:00
parent 57d9af6b56
commit 784787cd79
8 changed files with 584 additions and 0 deletions
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include/Nazara/Noise/Perlin4D.inl Normal file
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// Copyright (C) 2012 Rémi Bèges
// This file is part of the "Nazara Engine".
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Noise/Error.hpp>
#include <Nazara/Noise/Config.hpp>
#include <Nazara/Noise/Debug.hpp>
template <typename T>
NzPerlin4D<T>::NzPerlin4D()
{
int grad4Temp[][4] =
{
{0,1,1,1}, {0,1,1,-1}, {0,1,-1,1}, {0,1,-1,-1},
{0,-1,1,1},{0,-1,1,-1},{0,-1,-1,1},{0,-1,-1,-1},
{1,0,1,1}, {1,0,1,-1}, {1,0,-1,1}, {1,0,-1,-1},
{-1,0,1,1},{-1,0,1,-1},{-1,0,-1,1},{-1,0,-1,-1},
{1,1,0,1}, {1,1,0,-1}, {1,-1,0,1}, {1,-1,0,-1},
{-1,1,0,1},{-1,1,0,-1},{-1,-1,0,1},{-1,-1,0,-1},
{1,1,1,0}, {1,1,-1,0}, {1,-1,1,0}, {1,-1,-1,0},
{-1,1,1,0},{-1,1,-1,0},{-1,-1,1,0},{-1,-1,-1,0}
};
for(int i(0) ; i < 32 ; ++i)
for(int j(0) ; j < 4 ; ++j)
gradient4[i][j] = grad4Temp[i][j];
}
template <typename T>
T NzPerlin4D<T>::GetValue(T x, T y, T z, T w, T res)
{
nx = x/res;
ny = y/res;
nz = z/res;
nw = w/res;
x0 = static_cast<int>(nx);
y0 = static_cast<int>(ny);
z0 = static_cast<int>(nz);
w0 = static_cast<int>(nw);
ii = x0 & 255;
jj = y0 & 255;
kk = z0 & 255;
ll = w0 & 255;
gi0 = perm[ii + perm[jj + perm[kk + perm[ll ]]]] % 32;
gi1 = perm[ii + 1 + perm[jj + perm[kk + perm[ll ]]]] % 32;
gi2 = perm[ii + perm[jj + 1 + perm[kk + perm[ll ]]]] % 32;
gi3 = perm[ii + 1 + perm[jj + 1 + perm[kk + perm[ll ]]]] % 32;
gi4 = perm[ii + perm[jj + + perm[kk + 1 + perm[ll ]]]] % 32;
gi5 = perm[ii + 1 + perm[jj + + perm[kk + 1 + perm[ll ]]]] % 32;
gi6 = perm[ii + perm[jj + 1 + perm[kk + 1 + perm[ll ]]]] % 32;
gi7 = perm[ii + 1 + perm[jj + 1 + perm[kk + 1 + perm[ll ]]]] % 32;
gi8 = perm[ii + perm[jj + perm[kk + perm[ll + 1]]]] % 32;
gi9 = perm[ii + 1 + perm[jj + perm[kk + perm[ll + 1]]]] % 32;
gi10 = perm[ii + perm[jj + 1 + perm[kk + perm[ll + 1]]]] % 32;
gi11 = perm[ii + 1 + perm[jj + 1 + perm[kk + perm[ll + 1]]]] % 32;
gi12 = perm[ii + perm[jj + perm[kk + 1 + perm[ll + 1]]]] % 32;
gi13 = perm[ii + 1 + perm[jj + perm[kk + 1 + perm[ll + 1]]]] % 32;
gi14 = perm[ii + perm[jj + 1 + perm[kk + 1 + perm[ll + 1]]]] % 32;
gi15 = perm[ii + 1 + perm[jj + 1 + perm[kk + 1 + perm[ll + 1]]]] % 32;
temp.x = nx-x0;
temp.y = ny-y0;
temp.z = nz-z0;
temp.w = nw-w0;
s[0] = gradient4[gi0][0]*temp.x + gradient4[gi0][1]*temp.y + gradient4[gi0][2]*temp.z + gradient4[gi0][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-y0;
t[0] = gradient4[gi1][0]*temp.x + gradient4[gi1][1]*temp.y + gradient4[gi1][2]*temp.z + gradient4[gi1][3]*temp.w;
temp.x = nx-x0;
temp.y = ny-(y0+1);
u[0] = gradient4[gi2][0]*temp.x + gradient4[gi2][1]*temp.y + gradient4[gi2][2]*temp.z + gradient4[gi2][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-(y0+1);
v[0] = gradient4[gi3][0]*temp.x + gradient4[gi3][1]*temp.y + gradient4[gi3][2]*temp.z + gradient4[gi3][3]*temp.w;
temp.x = nx-x0;
temp.y = ny-y0;
temp.z = nz-(z0+1);
s[1] = gradient4[gi4][0]*temp.x + gradient4[gi4][1]*temp.y + gradient4[gi4][2]*temp.z + gradient4[gi4][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-y0;
t[1] = gradient4[gi5][0]*temp.x + gradient4[gi5][1]*temp.y + gradient4[gi5][2]*temp.z + gradient4[gi5][3]*temp.w;
temp.x = nx-x0;
temp.y = ny-(y0+1);
u[1] = gradient4[gi6][0]*temp.x + gradient4[gi6][1]*temp.y + gradient4[gi6][2]*temp.z + gradient4[gi6][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-(y0+1);
v[1] = gradient4[gi7][0]*temp.x + gradient4[gi7][1]*temp.y + gradient4[gi7][2]*temp.z + gradient4[gi7][3]*temp.w;
temp.x = nx-x0;
temp.y = ny-y0;
temp.z = nz-z0;
temp.w = nw-(w0+1);
s[2] = gradient4[gi8][0]*temp.x + gradient4[gi8][1]*temp.y + gradient4[gi8][2]*temp.z + gradient4[gi8][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-y0;
t[2] = gradient4[gi9][0]*temp.x + gradient4[gi9][1]*temp.y + gradient4[gi9][2]*temp.z + gradient4[gi9][3]*temp.w;
temp.x = nx-x0;
temp.y = ny-(y0+1);
u[2] = gradient4[gi10][0]*temp.x + gradient4[gi10][1]*temp.y + gradient4[gi10][2]*temp.z + gradient4[gi10][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-(y0+1);
v[2] = gradient4[gi11][0]*temp.x + gradient4[gi11][1]*temp.y + gradient4[gi11][2]*temp.z + gradient4[gi11][3]*temp.w;
temp.x = nx-x0;
temp.y = ny-y0;
temp.z = nz-(z0+1);
s[3] = gradient4[gi12][0]*temp.x + gradient4[gi12][1]*temp.y + gradient4[gi12][2]*temp.z + gradient4[gi12][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-y0;
t[3] = gradient4[gi13][0]*temp.x + gradient4[gi13][1]*temp.y + gradient4[gi13][2]*temp.z + gradient4[gi13][3]*temp.w;
temp.x = nx-x0;
temp.y = ny-(y0+1);
u[3] = gradient4[gi14][0]*temp.x + gradient4[gi14][1]*temp.y + gradient4[gi14][2]*temp.z + gradient4[gi14][3]*temp.w;
temp.x = nx-(x0+1);
temp.y = ny-(y0+1);
v[3] = gradient4[gi15][0]*temp.x + gradient4[gi15][1]*temp.y + gradient4[gi15][2]*temp.z + gradient4[gi15][3]*temp.w;
tmp = nx-x0;
Cx = tmp * tmp * tmp * (tmp * (tmp * 6 - 15) + 10);
Li1 = s[0] + Cx*(t[0]-s[0]);
Li2 = u[0] + Cx*(v[0]-u[0]);
Li3 = s[1] + Cx*(t[1]-s[1]);
Li4 = u[1] + Cx*(v[1]-u[1]);
Li5 = s[2] + Cx*(t[2]-s[2]);
Li6 = u[2] + Cx*(v[2]-u[2]);
Li7 = s[3] + Cx*(t[3]-s[3]);
Li8 = u[3] + Cx*(v[3]-u[3]);
tmp = ny-y0;
Cy = tmp * tmp * tmp * (tmp * (tmp * 6 - 15) + 10);
Li9 = Li1 + Cy*(Li2-Li1);
Li10 = Li3 + Cy*(Li4-Li3);
Li11 = Li5 + Cy*(Li6-Li5);
Li12 = Li7 + Cy*(Li8-Li7);
tmp = nz-z0;
Cz = tmp * tmp * tmp * (tmp * (tmp * 6 - 15) + 10);
Li13 = Li9 + Cz*(Li10-Li9);
Li14 = Li11 + Cz*(Li12-Li11);
tmp = nw-w0;
Cw = tmp * tmp * tmp * (tmp * (tmp * 6 - 15) + 10);
return Li13 + Cw*(Li14-Li13);
}