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feat(world-gen): larger biomes, smooth height blending, capped mountains; centralize tunables in Configuration

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Terrain feel: biome regions ~10x larger (Voronoi cell size 96->960); terrain height now eases across biome borders via a Voronoi distance blend (smooth, and ~25x cheaper than the old 169-sample box blur); mountains capped to ~2/3 world height and gentled (ridged amplitude/frequency lowered), snow line lowered to match.

Centralization: ~27 world-gen/render tuning constants (biome amplitudes & frequencies, climate-noise frequencies/octaves, biome-selection thresholds, blend width, cell size, filler depth, snow line, camera near plane, spawn offset, overlay scale) hoisted from scattered literals into a region-organized, fully-commented Configuration. Configuration is threaded into NoiseSource, the biomes, BiomeRegistry, BiomeMap (+Classify), TerrainSampler, WorldGenerator (+BlockAt filler depth), and Camera via Player. Defaults equal the prior values, so generation is unchanged; worldgen tests updated for the new constructor signatures.
This commit is contained in:
MDietermann
2026-06-03 16:27:06 +02:00
parent 96b8fffcd4
commit e034d10339
18 changed files with 367 additions and 136 deletions
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14
World/WorldGen/NoiseSource.cs
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@@ -1,3 +1,5 @@
using VoxelEngine.Core;
namespace VoxelEngine.World.WorldGen;
// Seeded wrapper over FastNoiseLite. All Get* methods return roughly [-1, 1].
@@ -7,23 +9,23 @@ public sealed class NoiseSource
private readonly FastNoiseLite _temperature;
private readonly FastNoiseLite _forest;
public NoiseSource(int seed)
public NoiseSource(int seed, Configuration cfg)
{
this._continent = new FastNoiseLite(seed);
this._continent.SetNoiseType(FastNoiseLite.NoiseType.OpenSimplex2);
this._continent.SetFractalType(FastNoiseLite.FractalType.FBm);
this._continent.SetFractalOctaves(4);
this._continent.SetFrequency(0.0035f);
this._continent.SetFractalOctaves(cfg.ContinentOctaves);
this._continent.SetFrequency(cfg.ContinentFrequency);
this._temperature = new FastNoiseLite(seed + 1);
this._temperature.SetNoiseType(FastNoiseLite.NoiseType.OpenSimplex2);
this._temperature.SetFractalType(FastNoiseLite.FractalType.FBm);
this._temperature.SetFractalOctaves(3);
this._temperature.SetFrequency(0.0015f);
this._temperature.SetFractalOctaves(cfg.TemperatureOctaves);
this._temperature.SetFrequency(cfg.TemperatureFrequency);
this._forest = new FastNoiseLite(seed + 2);
this._forest.SetNoiseType(FastNoiseLite.NoiseType.OpenSimplex2);
this._forest.SetFrequency(0.02f);
this._forest.SetFrequency(cfg.ForestFrequency);
}
public float Continent(float x, float z) => this._continent.GetNoise(x, z);