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Mgv7: Use density noise + density gradient for mountain terrain 

Tune and optimise noise parameters
master
paramat 2015-07-15 02:31:14 +01:00
parent 60350699c7
commit d569c91f48
1 changed files with 17 additions and 13 deletions
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30
src/mapgen_v7.cpp
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@ -146,17 +146,17 @@ MapgenV7Params::MapgenV7Params()
{
spflags = MGV7_MOUNTAINS | MGV7_RIDGES;
np_terrain_base = NoiseParams(4, 70, v3f(600, 600, 600), 82341, 5, 0.6, 2.0);
np_terrain_alt = NoiseParams(4, 25, v3f(600, 600, 600), 5934, 5, 0.6, 2.0);
np_terrain_persist = NoiseParams(0.6, 0.12, v3f(2000, 2000, 2000), 539, 3, 0.5, 2.0);
np_height_select = NoiseParams(-12, 24, v3f(500, 500, 500), 4213, 6, 0.69, 2.0);
np_filler_depth = NoiseParams(0, 1.2, v3f(150, 150, 150), 261, 4, 0.7, 2.0);
np_mount_height = NoiseParams(184, 72, v3f(1000, 1000, 1000), 72449, 3, 0.5, 2.0);
np_ridge_uwater = NoiseParams(0, 1, v3f(1000, 1000, 1000), 85039, 5, 0.6, 2.0);
np_mountain = NoiseParams(-0.6, 1, v3f(250, 350, 250), 5333, 5, 0.68, 2.0);
np_ridge = NoiseParams(0, 1, v3f(100, 100, 100), 6467, 4, 0.75, 2.0);
np_cave1 = NoiseParams(0, 12, v3f(100, 100, 100), 52534, 4, 0.5, 2.0);
np_cave2 = NoiseParams(0, 12, v3f(100, 100, 100), 10325, 4, 0.5, 2.0);
np_terrain_base = NoiseParams(4, 70, v3f(600, 600, 600), 82341, 5, 0.6, 2.0);
np_terrain_alt = NoiseParams(4, 25, v3f(600, 600, 600), 5934, 5, 0.6, 2.0);
np_terrain_persist = NoiseParams(0.6, 0.1, v3f(2000, 2000, 2000), 539, 3, 0.6, 2.0);
np_height_select = NoiseParams(-12, 24, v3f(500, 500, 500), 4213, 6, 0.7, 2.0);
np_filler_depth = NoiseParams(0, 1.2, v3f(150, 150, 150), 261, 3, 0.7, 2.0);
np_mount_height = NoiseParams(256, 112, v3f(1000, 1000, 1000), 72449, 3, 0.6, 2.0);
np_ridge_uwater = NoiseParams(0, 1, v3f(1000, 1000, 1000), 85039, 5, 0.6, 2.0);
np_mountain = NoiseParams(-0.6, 1, v3f(250, 350, 250), 5333, 5, 0.63, 2.0);
np_ridge = NoiseParams(0, 1, v3f(100, 100, 100), 6467, 4, 0.75, 2.0);
np_cave1 = NoiseParams(0, 12, v3f(100, 100, 100), 52534, 4, 0.5, 2.0);
np_cave2 = NoiseParams(0, 12, v3f(100, 100, 100), 10325, 4, 0.5, 2.0);
}
@ -429,16 +429,20 @@ float MapgenV7::baseTerrainLevelFromMap(int index)
bool MapgenV7::getMountainTerrainAtPoint(s16 x, s16 y, s16 z)
{
float mnt_h_n = NoisePerlin2D(&noise_mount_height->np, x, z, seed);
float density_gradient = -((float)y / mnt_h_n);
float mnt_n = NoisePerlin3D(&noise_mountain->np, x, y, z, seed);
return mnt_n * mnt_h_n >= (float)y;
return mnt_n + density_gradient >= 0.0;
}
bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y)
{
float mounthn = noise_mount_height->result[idx_xz];
float density_gradient = -((float)y / mounthn);
float mountn = noise_mountain->result[idx_xyz];
return mountn * mounthn >= (float)y;
return mountn + density_gradient >= 0.0;
}