267   int ix0, iy0, ix1, iy1, iz0, iz1;  in noise()  local
283   iz1 = (iz0 + 1) & 0xff;  in noise()
293   nxy1 = grad(perm[ix0 + perm[iy0 + perm[iz1]]], fx0, fy0, fz1);  in noise()
297   nxy1 = grad(perm[ix0 + perm[iy1 + perm[iz1]]], fx0, fy1, fz1);  in noise()
303   nxy1 = grad(perm[ix1 + perm[iy0 + perm[iz1]]], fx1, fy0, fz1);  in noise()
307   nxy1 = grad(perm[ix1 + perm[iy1 + perm[iz1]]], fx1, fy1, fz1);  in noise()
319   int ix0, iy0, ix1, iy1, iz0, iz1;  in pnoise()  local
335   iz1 = ((iz0 + 1) % pz) & 0xff;  // Wrap to 0..pz-1 and wrap to 0..255  in pnoise()
345   nxy1 = grad(perm[ix0 + perm[iy0 + perm[iz1]]], fx0, fy0, fz1);  in pnoise()
349   nxy1 = grad(perm[ix0 + perm[iy1 + perm[iz1]]], fx0, fy1, fz1);  in pnoise()
355   nxy1 = grad(perm[ix1 + perm[iy0 + perm[iz1]]], fx1, fy0, fz1);  in pnoise()
359   nxy1 = grad(perm[ix1 + perm[iy1 + perm[iz1]]], fx1, fy1, fz1);  in pnoise()
372   int ix0, iy0, iz0, iw0, ix1, iy1, iz1, iw1;  in noise()  local
391   iz1 = (iz0 + 1) & 0xff;  in noise()
410       grad(perm[ix0 + perm[iy0 + perm[iz1 + perm[iw0]]]], fx0, fy0, fz1, fw0);  in noise()
412       grad(perm[ix0 + perm[iy0 + perm[iz1 + perm[iw1]]]], fx0, fy0, fz1, fw1);  in noise()
424       grad(perm[ix0 + perm[iy1 + perm[iz1 + perm[iw0]]]], fx0, fy1, fz1, fw0);  in noise()
426       grad(perm[ix0 + perm[iy1 + perm[iz1 + perm[iw1]]]], fx0, fy1, fz1, fw1);  in noise()
440       grad(perm[ix1 + perm[iy0 + perm[iz1 + perm[iw0]]]], fx1, fy0, fz1, fw0);  in noise()
442       grad(perm[ix1 + perm[iy0 + perm[iz1 + perm[iw1]]]], fx1, fy0, fz1, fw1);  in noise()
454       grad(perm[ix1 + perm[iy1 + perm[iz1 + perm[iw0]]]], fx1, fy1, fz1, fw0);  in noise()
456       grad(perm[ix1 + perm[iy1 + perm[iz1 + perm[iw1]]]], fx1, fy1, fz1, fw1);  in noise()
472   int ix0, iy0, iz0, iw0, ix1, iy1, iz1, iw1;  in pnoise()  local
491   iz1 = ((iz0 + 1) % pz) & 0xff;  // Wrap to 0..pz-1 and wrap to 0..255  in pnoise()
510       grad(perm[ix0 + perm[iy0 + perm[iz1 + perm[iw0]]]], fx0, fy0, fz1, fw0);  in pnoise()
512       grad(perm[ix0 + perm[iy0 + perm[iz1 + perm[iw1]]]], fx0, fy0, fz1, fw1);  in pnoise()
524       grad(perm[ix0 + perm[iy1 + perm[iz1 + perm[iw0]]]], fx0, fy1, fz1, fw0);  in pnoise()
526       grad(perm[ix0 + perm[iy1 + perm[iz1 + perm[iw1]]]], fx0, fy1, fz1, fw1);  in pnoise()
540       grad(perm[ix1 + perm[iy0 + perm[iz1 + perm[iw0]]]], fx1, fy0, fz1, fw0);  in pnoise()
542       grad(perm[ix1 + perm[iy0 + perm[iz1 + perm[iw1]]]], fx1, fy0, fz1, fw1);  in pnoise()
554       grad(perm[ix1 + perm[iy1 + perm[iz1 + perm[iw0]]]], fx1, fy1, fz1, fw0);  in pnoise()
556       grad(perm[ix1 + perm[iy1 + perm[iz1 + perm[iw1]]]], fx1, fy1, fz1, fw1);  in pnoise()