def distorted_heteroTerrain(coords, H, lacunarity, octaves, offset, distort,
basis, vlbasis):
x, y, z = coords
h1 = (hetero_terrain((x, y, z), 1.0, 2.0, 1.0, 1.0, basis) * 0.5)
d = h1 * distort
h2 = (hetero_terrain(
(x + d, y + d, z + d), H, lacunarity, octaves, offset, vlbasis) * 0.25)
return (h1 * h1 + h2 * h2) * 0.5
def shattered_hterrain(coords, H, lacunarity, octaves, offset, distort, basis):
x, y, z = coords
d = (turbulence_vector(coords, 6, 0, 0)[0] * 0.5 + 0.5) * distort * 0.5
t1 = (turbulence_vector((x + d, y + d, z + d), 0, 0, 7)[0] + 0.5)
t2 = (hetero_terrain(
(x * 2, y * 2, z * 2), H, lacunarity, octaves, offset, basis) * 0.5)
return ((t1 * t2) + t2 * 0.5) * 0.5
def vl_hTerrain(coords, H, lacunarity, octaves, offset, basis, vlbasis,
distort):
x, y, z = coords
ht = hetero_terrain(
(x, y, z), H, lacunarity, octaves, offset, noise_basis=basis) * 0.25
vl = ht * variable_lacunarity(
(x, y, z), distort, noise_type1=basis, noise_type2=vlbasis) * 0.5 + 0.5
return vl * ht
def hetero(nbasis, verts, h_factor, lacunarity, octaves, offset, gain):
return [
noise.hetero_terrain(v,
h_factor,
lacunarity,
octaves,
offset,
noise_basis=nbasis) for v in verts
]
def fractal_function(position, freq, amp, H, lacunarity, octaves, offset, gain,
noise_basis, fractal_type):
if fractal_type == 1:
func = noise.fractal(position, H, lacunarity, octaves, noise_basis)
elif fractal_type == 2:
func = noise.multi_fractal(position, H, lacunarity, octaves,
noise_basis)
elif fractal_type == 3:
func = noise.hetero_terrain(position, H, lacunarity, octaves, offset,
noise_basis)
elif fractal_type == 4:
func = noise.hybrid_multi_fractal(position, H, lacunarity, octaves,
offset, gain, noise_basis)
elif fractal_type == 5:
func = noise.ridged_multi_fractal(position, H, lacunarity, octaves,
offset, gain, noise_basis)
return func
def hetero(nbasis, verts, h_factor, lacunarity, octaves, offset, gain):
return [noise.hetero_terrain(v, h_factor, lacunarity, octaves, offset, nbasis) for v in verts]
def noise_gen(coords, props):
terrain_name = props[0]
cursor = props[1]
smooth = props[2]
triface = props[3]
sphere = props[4]
land_mat = props[5]
water_mat = props[6]
texture_name = props[7]
subd_x = props[8]
subd_y = props[9]
meshsize_x = props[10]
meshsize_y = props[11]
meshsize = props[12]
rseed = props[13]
x_offset = props[14]
y_offset = props[15]
z_offset = props[16]
size_x = props[17]
size_y = props[18]
size_z = props[19]
nsize = props[20]
ntype = props[21]
nbasis = props[22]
vlbasis = props[23]
distortion = props[24]
hardnoise = int(props[25])
depth = props[26]
amp = props[27]
freq = props[28]
dimension = props[29]
lacunarity = props[30]
offset = props[31]
gain = props[32]
marblebias = int(props[33])
marblesharpnes = int(props[34])
marbleshape = int(props[35])
height = props[36]
height_invert = props[37]
height_offset = props[38]
maximum = props[39]
minimum = props[40]
falloff = int(props[41])
edge_level = props[42]
falloffsize_x = props[43]
falloffsize_y = props[44]
stratatype = props[45]
strata = props[46]
addwater = props[47]
waterlevel = props[48]
vert_group = props[49]
remove_double = props[50]
fx_mixfactor = props[51]
fx_mix_mode = props[52]
fx_type = props[53]
fx_bias = props[54]
fx_turb = props[55]
fx_depth = props[56]
fx_frequency = props[57]
fx_amplitude = props[58]
fx_size = props[59]
fx_loc_x = props[60]
fx_loc_y = props[61]
fx_height = props[62]
fx_offset = props[63]
fx_invert = props[64]
x, y, z = coords
# Origin
if rseed == 0:
origin = x_offset, y_offset, z_offset
origin_x = x_offset
origin_y = y_offset
origin_z = z_offset
o_range = 1.0
else:
# Randomise origin
o_range = 100
seed_set(rseed)
origin = random_unit_vector()
ox = (origin[0] * o_range)
oy = (origin[1] * o_range)
oz = 0
origin_x = (ox - (ox * 0.5)) + x_offset
origin_y = (oy - (oy * 0.5)) + y_offset
origin_z = oz + z_offset
ncoords = (x / (nsize * size_x) + origin_x,
y / (nsize * size_y) + origin_y,
z / (nsize * size_z) + origin_z)
# Noise type's
if ntype in [0, 'multi_fractal']:
value = multi_fractal(
ncoords, dimension, lacunarity, depth, noise_basis=nbasis) * 0.5
elif ntype in [1, 'ridged_multi_fractal']:
value = ridged_multi_fractal(ncoords,
dimension,
lacunarity,
depth,
offset,
gain,
noise_basis=nbasis) * 0.5
elif ntype in [2, 'hybrid_multi_fractal']:
value = hybrid_multi_fractal(ncoords,
dimension,
lacunarity,
depth,
offset,
gain,
noise_basis=nbasis) * 0.5
elif ntype in [3, 'hetero_terrain']:
value = hetero_terrain(
ncoords, dimension, lacunarity, depth, offset,
noise_basis=nbasis) * 0.25
elif ntype in [4, 'fractal']:
value = fractal(ncoords,
dimension,
lacunarity,
depth,
noise_basis=nbasis)
elif ntype in [5, 'turbulence_vector']:
value = turbulence_vector(ncoords,
depth,
hardnoise,
noise_basis=nbasis,
amplitude_scale=amp,
frequency_scale=freq)[0]
elif ntype in [6, 'variable_lacunarity']:
value = variable_lacunarity(ncoords,
distortion,
noise_type1=nbasis,
noise_type2=vlbasis)
elif ntype in [7, 'marble_noise']:
value = marble_noise(
(ncoords[0] - origin_x + x_offset),
(ncoords[1] - origin_y + y_offset),
(ncoords[2] - origin_z + z_offset),
(origin[0] + x_offset, origin[1] + y_offset, origin[2] + z_offset),
nsize, marbleshape, marblebias, marblesharpnes, distortion, depth,
hardnoise, nbasis, amp, freq)
elif ntype in [8, 'shattered_hterrain']:
value = shattered_hterrain(ncoords, dimension, lacunarity, depth,
offset, distortion, nbasis)
elif ntype in [9, 'strata_hterrain']:
value = strata_hterrain(ncoords, dimension, lacunarity, depth, offset,
distortion, nbasis)
elif ntype in [10, 'ant_turbulence']:
value = ant_turbulence(ncoords, depth, hardnoise, nbasis, amp, freq,
distortion)
elif ntype in [11, 'vl_noise_turbulence']:
value = vl_noise_turbulence(ncoords, distortion, depth, nbasis,
vlbasis, hardnoise, amp, freq)
elif ntype in [12, 'vl_hTerrain']:
value = vl_hTerrain(ncoords, dimension, lacunarity, depth, offset,
nbasis, vlbasis, distortion)
elif ntype in [13, 'distorted_heteroTerrain']:
value = distorted_heteroTerrain(ncoords, dimension, lacunarity, depth,
offset, distortion, nbasis, vlbasis)
elif ntype in [14, 'double_multiFractal']:
value = double_multiFractal(ncoords, dimension, lacunarity, depth,
offset, gain, nbasis, vlbasis)
elif ntype in [15, 'rocks_noise']:
value = rocks_noise(ncoords, depth, hardnoise, nbasis, distortion)
elif ntype in [16, 'slick_rock']:
value = slick_rock(ncoords, dimension, lacunarity, depth, offset, gain,
distortion, nbasis, vlbasis)
elif ntype in [17, 'planet_noise']:
value = planet_noise(ncoords, depth, hardnoise, nbasis)[2] * 0.5 + 0.5
elif ntype in [18, 'blender_texture']:
if texture_name != "" and texture_name in bpy.data.textures:
value = bpy.data.textures[texture_name].evaluate(ncoords)[3]
else:
value = 0.0
else:
value = 0.5
# Effect mix
val = value
if fx_type in [0, "0"]:
fx_mixfactor = -1.0
fxval = val
else:
fxcoords = Trans_Effect((x, y, z), fx_size, (fx_loc_x, fx_loc_y))
effect = Effect_Function(fxcoords, fx_type, fx_bias, fx_turb, fx_depth,
fx_frequency, fx_amplitude)
effect = Height_Scale(effect, fx_height, fx_offset, fx_invert)
fxval = Mix_Modes(val, effect, fx_mixfactor, fx_mix_mode)
value = fxval
# Adjust height
value = Height_Scale(value, height, height_offset, height_invert)
# Edge falloff:
if not sphere:
if falloff:
ratio_x, ratio_y = abs(x) * 2 / meshsize_x, abs(y) * 2 / meshsize_y
fallofftypes = [
0,
sqrt(ratio_y**falloffsize_y),
sqrt(ratio_x**falloffsize_x),
sqrt(ratio_x**falloffsize_x + ratio_y**falloffsize_y)
]
dist = fallofftypes[falloff]
value -= edge_level
if (dist < 1.0):
dist = (dist * dist * (3 - 2 * dist))
value = (value - value * dist) + edge_level
else:
value = edge_level
# Strata / terrace / layers
if stratatype not in [0, "0"]:
if stratatype in [1, "1"]:
strata = strata / height
strata *= 2
steps = (sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * 0.5 + steps * 0.5) * 2.0
elif stratatype in [2, "2"]:
strata = strata / height
steps = -abs(sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * 0.5 + steps * 0.5) * 2.0
elif stratatype in [3, "3"]:
strata = strata / height
steps = abs(sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * 0.5 + steps * 0.5) * 2.0
elif stratatype in [4, "4"]:
strata = strata / height
value = int(value * strata) * 1.0 / strata
elif stratatype in [5, "5"]:
strata = strata / height
steps = (int(value * strata) * 1.0 / strata)
value = (value * (1.0 - 0.5) + steps * 0.5)
# Clamp height min max
if (value < minimum):
value = minimum
if (value > maximum):
value = maximum
return value
def strata_hterrain(coords, H, lacunarity, octaves, offset, distort, basis):
x, y, z = coords
value = hetero_terrain(
(x, y, z), H, lacunarity, octaves, offset, noise_basis=basis) * 0.5
steps = (sin(value * (distort * 5) * pi) * (0.1 / (distort * 5) * pi))
return (value * (1.0 - 0.5) + steps * 0.5)
def noise_gen(coords, props):
terrain_name = props[0]
cursor = props[1]
smooth = props[2]
triface = props[3]
sphere = props[4]
land_mat = props[5]
water_mat = props[6]
texture_name = props[7]
subd_x = props[8]
subd_y = props[9]
meshsize_x = props[10]
meshsize_y = props[11]
meshsize = props[12]
rseed = props[13]
x_offset = props[14]
y_offset = props[15]
z_offset = props[16]
size_x = props[17]
size_y = props[18]
size_z = props[19]
nsize = props[20]
ntype = props[21]
nbasis = int(props[22])
vlbasis = int(props[23])
distortion = props[24]
hardnoise = int(props[25])
depth = props[26]
amp = props[27]
freq = props[28]
dimension = props[29]
lacunarity = props[30]
offset = props[31]
gain = props[32]
marblebias = int(props[33])
marblesharpnes = int(props[34])
marbleshape = int(props[35])
height = props[36]
height_invert = props[37]
height_offset = props[38]
maximum = props[39]
minimum = props[40]
falloff = int(props[41])
edge_level = props[42]
falloffsize_x = props[43]
falloffsize_y = props[44]
stratatype = props[45]
strata = props[46]
addwater = props[47]
waterlevel = props[48]
vert_group = props[49]
remove_double = props[50]
fx_mixfactor = props[51]
fx_mix_mode = props[52]
fx_type = props[53]
fx_bias = props[54]
fx_turb = props[55]
fx_depth = props[56]
fx_frequency = props[57]
fx_amplitude = props[58]
fx_size = props[59]
fx_loc_x = props[60]
fx_loc_y = props[61]
fx_height = props[62]
fx_offset = props[63]
fx_invert = props[64]
x, y, z = coords
# Origin
if rseed is 0:
origin = x_offset, y_offset, z_offset
origin_x = x_offset
origin_y = y_offset
origin_z = z_offset
o_range = 1.0
else:
# Randomise origin
o_range = 10000.0
seed_set(rseed)
origin = random_unit_vector()
ox = (origin[0] * o_range)
oy = (origin[1] * o_range)
oz = (origin[2] * o_range)
origin_x = (ox - (ox / 2)) + x_offset
origin_y = (oy - (oy / 2)) + y_offset
origin_z = (oz - (oz / 2)) + z_offset
ncoords = (x / (nsize * size_x) + origin_x, y / (nsize * size_y) + origin_y, z / (nsize * size_z) + origin_z)
# Noise basis type's
if nbasis == 9:
nbasis = 14 # Cellnoise
if vlbasis == 9:
vlbasis = 14
# Noise type's
if ntype in [0, 'multi_fractal']:
value = multi_fractal(ncoords, dimension, lacunarity, depth, nbasis) * 0.5
elif ntype in [1, 'ridged_multi_fractal']:
value = ridged_multi_fractal(ncoords, dimension, lacunarity, depth, offset, gain, nbasis) * 0.5
elif ntype in [2, 'hybrid_multi_fractal']:
value = hybrid_multi_fractal(ncoords, dimension, lacunarity, depth, offset, gain, nbasis) * 0.5
elif ntype in [3, 'hetero_terrain']:
value = hetero_terrain(ncoords, dimension, lacunarity, depth, offset, nbasis) * 0.25
elif ntype in [4, 'fractal']:
value = fractal(ncoords, dimension, lacunarity, depth, nbasis)
elif ntype in [5, 'turbulence_vector']:
value = turbulence_vector(ncoords, depth, hardnoise, nbasis, amp, freq)[0]
elif ntype in [6, 'variable_lacunarity']:
value = variable_lacunarity(ncoords, distortion, nbasis, vlbasis)
elif ntype in [7, 'marble_noise']:
value = marble_noise(
(ncoords[0] - origin_x + x_offset),
(ncoords[1] - origin_y + y_offset),
(ncoords[2] - origin_z + z_offset),
(origin[0] + x_offset, origin[1] + y_offset, origin[2] + z_offset), nsize,
marbleshape, marblebias, marblesharpnes,
distortion, depth, hardnoise, nbasis, amp, freq
)
elif ntype in [8, 'shattered_hterrain']:
value = shattered_hterrain(ncoords, dimension, lacunarity, depth, offset, distortion, nbasis)
elif ntype in [9, 'strata_hterrain']:
value = strata_hterrain(ncoords, dimension, lacunarity, depth, offset, distortion, nbasis)
elif ntype in [10, 'ant_turbulence']:
value = ant_turbulence(ncoords, depth, hardnoise, nbasis, amp, freq, distortion)
elif ntype in [11, 'vl_noise_turbulence']:
value = vl_noise_turbulence(ncoords, distortion, depth, nbasis, vlbasis, hardnoise, amp, freq)
elif ntype in [12, 'vl_hTerrain']:
value = vl_hTerrain(ncoords, dimension, lacunarity, depth, offset, nbasis, vlbasis, distortion)
elif ntype in [13, 'distorted_heteroTerrain']:
value = distorted_heteroTerrain(ncoords, dimension, lacunarity, depth, offset, distortion, nbasis, vlbasis)
elif ntype in [14, 'double_multiFractal']:
value = double_multiFractal(ncoords, dimension, lacunarity, depth, offset, gain, nbasis, vlbasis)
elif ntype in [15, 'rocks_noise']:
value = rocks_noise(ncoords, depth, hardnoise, nbasis, distortion)
elif ntype in [16, 'slick_rock']:
value = slick_rock(ncoords,dimension, lacunarity, depth, offset, gain, distortion, nbasis, vlbasis)
elif ntype in [17, 'planet_noise']:
value = planet_noise(ncoords, depth, hardnoise, nbasis)[2] * 0.5 + 0.5
elif ntype in [18, 'blender_texture']:
if texture_name != "" and texture_name in bpy.data.textures:
value = bpy.data.textures[texture_name].evaluate(ncoords)[3]
else:
value = 0.0
else:
value = 0.5
# Effect mix
val = value
if fx_type in [0,"0"]:
fx_mixfactor = -1.0
fxval = val
else:
fxcoords = Trans_Effect((x, y, z), fx_size, (fx_loc_x, fx_loc_y))
effect = Effect_Function(fxcoords, fx_type, fx_bias, fx_turb, fx_depth, fx_frequency, fx_amplitude)
effect = Height_Scale(effect, fx_height, fx_offset, fx_invert)
fxval = Mix_Modes(val, effect, fx_mixfactor, fx_mix_mode)
value = fxval
# Adjust height
value = Height_Scale(value, height, height_offset, height_invert)
# Edge falloff:
if not sphere:
if falloff:
ratio_x, ratio_y = abs(x) * 2 / meshsize_x, abs(y) * 2 / meshsize_y
fallofftypes = [0,
sqrt(ratio_y**falloffsize_y),
sqrt(ratio_x**falloffsize_x),
sqrt(ratio_x**falloffsize_x + ratio_y**falloffsize_y)
]
dist = fallofftypes[falloff]
value -= edge_level
if(dist < 1.0):
dist = (dist * dist * (3 - 2 * dist))
value = (value - value * dist) + edge_level
else:
value = edge_level
# Strata / terrace / layers
if stratatype not in [0, "0"]:
if stratatype in [1, "1"]:
strata = strata / height
strata *= 2
steps = (sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * 0.5 + steps * 0.5) * 2.0
elif stratatype in [2, "2"]:
strata = strata / height
steps = -abs(sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * 0.5 + steps * 0.5) * 2.0
elif stratatype in [3, "3"]:
strata = strata / height
steps = abs(sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * 0.5 + steps * 0.5) * 2.0
elif stratatype in [4, "4"]:
strata = strata / height
value = int( value * strata ) * 1.0 / strata
elif stratatype in [5, "5"]:
strata = strata / height
steps = (int( value * strata ) * 1.0 / strata)
value = (value * (1.0 - 0.5) + steps * 0.5)
# Clamp height min max
if (value < minimum):
value = minimum
if (value > maximum):
value = maximum
return value
def strata_hterrain(coords, H, lacunarity, octaves, offset, distort, basis):
x, y, z = coords
value = hetero_terrain((x, y, z), H, lacunarity, octaves, offset, basis) * 0.5
steps = (sin(value * (distort * 5) * pi) * (0.1 / (distort * 5) * pi))
return (value * (1.0 - 0.5) + steps * 0.5)
def shattered_hterrain(coords, H, lacunarity, octaves, offset, distort, basis):
x, y, z = coords
d = (turbulence_vector(coords, 6, 0, 0)[0] * 0.5 + 0.5) * distort * 0.5
t1 = (turbulence_vector((x + d, y + d, z + d), 0, 0, 7)[0] + 0.5)
t2 = (hetero_terrain((x * 2, y * 2, z * 2), H, lacunarity, octaves, offset, basis) * 0.5)
return ((t1 * t2) + t2 * 0.5) * 0.5
def vl_hTerrain(coords, H, lacunarity, octaves, offset, basis, vlbasis, distort):
x, y, z = coords
ht = hetero_terrain((x, y, z), H, lacunarity, octaves, offset, basis ) * 0.25
vl = ht * variable_lacunarity((x, y, z), distort, basis, vlbasis) * 0.5 + 0.5
return vl * ht
def distorted_heteroTerrain(coords, H, lacunarity, octaves, offset, distort, basis, vlbasis):
x, y, z = coords
h1 = (hetero_terrain((x, y, z), 1.0, 2.0, 1.0, 1.0, basis) * 0.5)
d = h1 * distort
h2 = (hetero_terrain((x + d, y + d, z + d), H, lacunarity, octaves, offset, vlbasis) * 0.25)
return (h1 * h1 + h2 * h2) * 0.5
def landscape_gen(x, y, z, falloffsize, options):
# options = [0, 1.0, 'multi_fractal', 0, 0, 1.0, 0, 6, 1.0, 2.0, 1.0, 2.0,
# 0, 0, 0, 1.0, 0.0, 1, 0.0, 1.0, 0, 0, 0, 0.0, 0.0]
rseed = options[0]
nsize = options[1]
ntype = options[2]
nbasis = int(options[3][0])
vlbasis = int(options[4][0])
distortion = options[5]
hardnoise = options[6]
depth = options[7]
dimension = options[8]
lacunarity = options[9]
offset = options[10]
gain = options[11]
marblebias = int(options[12][0])
marblesharpnes = int(options[13][0])
marbleshape = int(options[14][0])
invert = options[15]
height = options[16]
heightoffset = options[17]
falloff = int(options[18][0])
sealevel = options[19]
platlevel = options[20]
strata = options[21]
stratatype = options[22]
sphere = options[23]
x_offset = options[24]
y_offset = options[25]
# origin
if rseed == 0:
origin = 0.0 + x_offset, 0.0 + y_offset, 0.0
origin_x = x_offset
origin_y = y_offset
origin_z = 0.0
else:
# randomise origin
seed_set(rseed)
origin = random_unit_vector()
origin[0] += x_offset
origin[1] += y_offset
origin_x = ((0.5 - origin[0]) * 1000.0) + x_offset
origin_y = ((0.5 - origin[1]) * 1000.0) + y_offset
origin_z = (0.5 - origin[2]) * 1000.0
# adjust noise size and origin
ncoords = (x / nsize + origin_x, y / nsize + origin_y,
z / nsize + origin_z)
# noise basis type's
if nbasis == 9:
nbasis = 14 # to get cellnoise basis you must set 14 instead of 9
if vlbasis == 9:
vlbasis = 14
# noise type's
if ntype == 'multi_fractal':
value = multi_fractal(ncoords, dimension, lacunarity, depth,
nbasis) * 0.5
elif ntype == 'ridged_multi_fractal':
value = ridged_multi_fractal(ncoords, dimension, lacunarity, depth,
offset, gain, nbasis) * 0.5
elif ntype == 'hybrid_multi_fractal':
value = hybrid_multi_fractal(ncoords, dimension, lacunarity, depth,
offset, gain, nbasis) * 0.5
elif ntype == 'hetero_terrain':
value = hetero_terrain(ncoords, dimension, lacunarity, depth, offset,
nbasis) * 0.25
elif ntype == 'fractal':
value = fractal(ncoords, dimension, lacunarity, depth, nbasis)
elif ntype == 'turbulence_vector':
value = turbulence_vector(ncoords, depth, hardnoise, nbasis)[0]
elif ntype == 'variable_lacunarity':
value = variable_lacunarity(ncoords, distortion, nbasis, vlbasis) + 0.5
elif ntype == 'marble_noise':
value = marble_noise(x * 2.0 / falloffsize, y * 2.0 / falloffsize,
z * 2 / falloffsize, origin, nsize, marbleshape,
marblebias, marblesharpnes, distortion, depth,
hardnoise, nbasis)
elif ntype == 'shattered_hterrain':
value = shattered_hterrain(ncoords[0], ncoords[1], ncoords[2],
dimension, lacunarity, depth, offset,
distortion, nbasis)
elif ntype == 'strata_hterrain':
value = strata_hterrain(ncoords[0], ncoords[1], ncoords[2], dimension,
lacunarity, depth, offset, distortion, nbasis)
elif ntype == 'planet_noise':
value = planet_noise(ncoords, depth, hardnoise, nbasis)[2] * 0.5 + 0.5
else:
value = 0.0
# adjust height
if invert != 0:
value = (1 - value) * height + heightoffset
else:
value = value * height + heightoffset
# edge falloff
if sphere == 0: # no edge falloff if spherical
if falloff != 0:
fallofftypes = [
0, hypot(x * x, y * y),
hypot(x, y),
abs(y), abs(x)
]
dist = fallofftypes[falloff]
if falloff == 1:
radius = (falloffsize / 2)**2
else:
radius = falloffsize / 2
value = value - sealevel
if (dist < radius):
dist = dist / radius
dist = (dist * dist * (3 - 2 * dist))
value = (value - value * dist) + sealevel
else:
value = sealevel
# strata / terrace / layered
if stratatype != '0':
strata = strata / height
if stratatype == '1':
strata *= 2
steps = (sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * (1.0 - 0.5) + steps * 0.5) * 2.0
elif stratatype == '2':
steps = -abs(sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * (1.0 - 0.5) + steps * 0.5) * 2.0
elif stratatype == '3':
steps = abs(sin(value * strata * pi) * (0.1 / strata * pi))
value = (value * (1.0 - 0.5) + steps * 0.5) * 2.0
else:
value = value
# clamp height
if (value < sealevel):
value = sealevel
if (value > platlevel):
value = platlevel
return value
