Remove unnecessary smooth 3D noises. Squash 3D noise vertical scales. Flatter lowlands
This commit is contained in:
paramat
parent
123ab76e4f
commit
dfb5a5660f
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@ -1,4 +1,4 @@
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watershed 0.3.14 by paramat
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watershed 0.3.15 by paramat
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For latest stable Minetest back to 0.4.8
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Depends default bucket
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Licenses: code WTFPL, textures CC BY-SA
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@ -237,35 +237,19 @@ if SINGLENODE then
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local np_rough = {
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offset = 0,
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scale = 1,
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spread = {x=512, y=512, z=512},
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spread = {x=512, y=256, z=512},
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seed = 593,
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octaves = 6,
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persist = 0.67
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}
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local np_smooth = {
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offset = 0,
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scale = 1,
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spread = {x=512, y=512, z=512},
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seed = 593,
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octaves = 5,
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persist = 0.33
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}
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local np_roughalt = {
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offset = 0,
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scale = 1,
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spread = {x=414, y=414, z=414},
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spread = {x=414, y=207, z=414},
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seed = -9003,
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octaves = 6,
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persist = 0.67
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}
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local np_smoothalt = {
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offset = 0,
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scale = 1,
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spread = {x=414, y=414, z=414},
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seed = -9003,
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octaves = 5,
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persist = 0.33
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}
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local np_base = {
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offset = 0,
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scale = 1,
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@ -297,9 +281,7 @@ if SINGLENODE then
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local minposxz = {x=x0, y=z0}
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local nvals_rough = minetest.get_perlin_map(np_rough, chulens):get3dMap_flat(minposxyz)
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local nvals_smooth = minetest.get_perlin_map(np_smooth, chulens):get3dMap_flat(minposxyz)
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local nvals_roughalt = minetest.get_perlin_map(np_roughalt, chulens):get3dMap_flat(minposxyz)
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local nvals_smoothalt = minetest.get_perlin_map(np_smoothalt, chulens):get3dMap_flat(minposxyz)
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local nvals_base = minetest.get_perlin_map(np_base, chulens):get2dMap_flat(minposxz)
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local nvals_xlscale = minetest.get_perlin_map(np_xlscale, chulens):get2dMap_flat(minposxz)
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@ -310,19 +292,15 @@ if SINGLENODE then
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for y = y0, y1 do
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for x = x0, x1 do
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local n_rough = nvals_rough[nixyz]
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local n_smooth = nvals_smooth[nixyz]
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local n_roughalt = nvals_roughalt[nixyz]
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local n_smoothalt = nvals_smoothalt[nixyz]
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local n_base = nvals_base[nixz]
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local n_xlscale = nvals_xlscale[nixz]
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local grad = math.atan((TERCEN - y) / TERSCA) * ATANAMP
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local densitybase = (1 - math.abs(n_base)) * BASAMP + n_xlscale * XLSAMP + grad
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local terblen = (math.max(1 - math.abs(n_base), 0)) ^ BLENEXP
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local canexp = 0.5 + terblen
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local canamp = 0.03 + terblen * CANAMP
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local density = densitybase +
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math.abs((n_rough + n_roughalt) * 0.5 * terblen +
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(n_smooth + n_smoothalt) * 0.5 * (1 - terblen)) ^ canexp * canamp
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local canamp = 0.01 + terblen * CANAMP
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local density = densitybase + math.abs((n_rough + n_roughalt) * 0.5) ^ canexp * canamp
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if y >= 1 and density > -0.01 and density < 0 then
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ysp = y + 1
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xsp = x
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49
init.lua
49
init.lua
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@ -1,13 +1,12 @@
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-- watershed 0.3.14 by paramat
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-- watershed 0.3.15 by paramat
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-- For latest stable Minetest and back to 0.4.8
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-- Depends default bucket
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-- License: code WTFPL, textures CC BY-SA
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-- Red cobble texture CC BY-SA by brunob.santos
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-- light crafting gives 8 lights
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-- mid colour water at y == 2
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-- flatter lowlands: terblen exponent, vary canexp, canamp
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-- grassy sides on mod grass
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-- removed 2 unnecessary 3D noises for speed 4-5s per chunk
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-- squashed terrain noise
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-- flattened lowlands
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-- Parameters
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@ -31,7 +30,7 @@ local TSTONE = 0.02 -- Density threshold for stone, depth of soil at TERCEN
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local TRIV = -0.02 -- Maximum densitybase threshold for river water
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local TSAND = -0.025 -- Maximum densitybase threshold for river sand
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local TLAVA = 2.3 -- Maximum densitybase threshold for lava, small because grad is non-linear
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local FISEXP = 0.03 -- Fissure expansion rate under surface
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local TFIS = 0.01 -- Fissure threshold, controls width
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local ORETHI = 0.002 -- Ore seam thickness tuner
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local SEAMT = 0.2 -- Seam threshold, width of seams
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local BERGDEP = 32 -- Maximum iceberg depth
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@ -62,45 +61,23 @@ local DUGCHA = 5 -- Dune grass
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local np_rough = {
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offset = 0,
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scale = 1,
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spread = {x=512, y=512, z=512},
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spread = {x=512, y=256, z=512},
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seed = 593,
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octaves = 6,
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persist = 0.67
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}
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-- 3D noise for smooth terrain
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local np_smooth = {
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offset = 0,
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scale = 1,
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spread = {x=512, y=512, z=512},
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seed = 593,
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octaves = 5,
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persist = 0.33
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}
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-- 3D noise for alt rough terrain
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local np_roughalt = {
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offset = 0,
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scale = 1,
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spread = {x=414, y=414, z=414},
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spread = {x=414, y=207, z=414},
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seed = -9003,
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octaves = 6,
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persist = 0.67
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}
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-- 3D noise for alt smooth terrain
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local np_smoothalt = {
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offset = 0,
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scale = 1,
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spread = {x=414, y=414, z=414},
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seed = -9003,
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octaves = 5,
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persist = 0.33
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}
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-- 3D noise for fissures
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local np_fissure = {
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@ -265,9 +242,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local minposxz = {x=x0, y=z0}
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-- 3D and 2D perlinmaps
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local nvals_rough = minetest.get_perlin_map(np_rough, chulens):get3dMap_flat(minposxyz)
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local nvals_smooth = minetest.get_perlin_map(np_smooth, chulens):get3dMap_flat(minposxyz)
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local nvals_roughalt = minetest.get_perlin_map(np_roughalt, chulens):get3dMap_flat(minposxyz)
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local nvals_smoothalt = minetest.get_perlin_map(np_smoothalt, chulens):get3dMap_flat(minposxyz)
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local nvals_fissure = minetest.get_perlin_map(np_fissure, chulens):get3dMap_flat(minposxyz)
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local nvals_temp = minetest.get_perlin_map(np_temp, chulens):get3dMap_flat(minposxyz)
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local nvals_humid = minetest.get_perlin_map(np_humid, chulens):get3dMap_flat(minposxyz)
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@ -295,9 +270,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local si = x - x0 + 1 -- stable, under tables index
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-- noise values for node
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local n_rough = nvals_rough[nixyz]
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local n_smooth = nvals_smooth[nixyz]
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local n_roughalt = nvals_roughalt[nixyz]
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local n_smoothalt = nvals_smoothalt[nixyz]
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local n_fissure = nvals_fissure[nixyz]
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local n_temp = nvals_temp[nixyz]
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local n_humid = nvals_humid[nixyz]
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@ -312,10 +285,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local densitybase = (1 - math.abs(n_base)) * BASAMP + n_xlscale * XLSAMP + grad
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local terblen = (math.max(1 - math.abs(n_base), 0)) ^ BLENEXP
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local canexp = 0.5 + terblen
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local canamp = 0.03 + terblen * CANAMP
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local density = densitybase +
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math.abs((n_rough + n_roughalt) * 0.5 * terblen +
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(n_smooth + n_smoothalt) * 0.5 * (1 - terblen)) ^ canexp * canamp
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local canamp = 0.01 + terblen * CANAMP
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local density = densitybase + math.abs((n_rough + n_roughalt) * 0.5) ^ canexp * canamp
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-- other values
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local triv = TRIV * (1 - terblen) -- river threshold
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local tsand = TSAND * (1 - terblen) -- sand threshold
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@ -325,7 +296,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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local bergdep = math.abs(n_seam) * BERGDEP -- iceberg depth
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local nofis = false -- set fissure bool
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if math.abs(n_fissure) > math.sqrt(density) * FISEXP then
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if math.abs(n_fissure) >= TFIS then
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nofis = true
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end
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