paramat/riverexp
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Canyon experiment

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This commit is contained in:
paramat 2015-01-25 01:05:14 +00:00
parent dd2cd156bf
commit f0e030e1da
2 changed files with 11 additions and 10 deletions
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2
README.txt
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@ -1,4 +1,4 @@
riverexp 0.1.0 by paramat
riverexp 0.1.1 by paramat
For Minetest 0.4.11 stable or later
Depends default
Licenses: Code WTFPL. Textures CC-BY-SA

19
init.lua
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@ -3,14 +3,14 @@
local YWATER = 1
local YSAND = 4
local YTERCEN = 0
local TERSCA = 384
local TERSCA = 256
local BASAMP = 0.2
local TSTONE = 0.02
local TRIVER = 0.007
local VALAMP = 0.33
local VALEXP = 1
local RIVAMP = 1.5
local TSTONE = 0.01
local TRIVER = 0.01
local VALAMP = 100
local VALEXP = 2
local RIVAMP = 1
-- Noise parameters
@ -159,7 +159,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
local n_base = nvals_base[ni2d]
local blend = math.min(math.max(n_base * 3 - 1, 0), 1)
local triver = TRIVER * (1 - blend * 0.5)
local valamp = VALAMP
local valamp = VALAMP * (1 - blend * 0.8)
local valexp = VALEXP
local n_valleylo = nvals_valleylo[ni2d]
@ -173,8 +173,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
local grad = (YTERCEN - y) / TERSCA
local densitybase = n_base * BASAMP + grad
local densityval = math.abs(n_valleymix * n_valleymix2) - triver
if densityval > 0 then -- valley shape
densityval = densityval ^ valexp * valamp
if densityval > 0 then
densityval = math.min(densityval ^ valexp * valamp,
0.4 + blend)
else -- river channel shape
densityval = densityval * RIVAMP
end