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feat(streaming): load full column bedrock->surface to fix terrain holes

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This commit is contained in:
MDietermann
2026-06-03 08:01:38 +02:00
parent cba6b8c761
commit 225c6f7253
6 changed files with 87 additions and 87 deletions
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90
VoxelEngine.Tests/Streaming/ChunkStreamerTests.cs
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@@ -6,6 +6,7 @@ using VoxelEngine.World.Blocks;
using VoxelEngine.World.Chunk;
using VoxelEngine.World.Persistence;
using VoxelEngine.World.Streaming;
using VoxelEngine.World.WorldGen;
using Xunit;
using VoxelChunk = VoxelEngine.World.Chunk.Chunk;
@@ -72,7 +73,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -97,7 +97,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -130,7 +129,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 2, // cap drains per tick
};
@@ -151,19 +149,21 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 2,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
var (streamer, world, created) = CreateStreamer(cfg);
// Surface far above the world ceiling -> top chunk clamps to
// WorldHeightChunks-1 (31). Full column loads cy 0..31 and nothing above.
var (streamer, world, _) = CreateStreamer(cfg, surfaceHeightAt: (_, _) => 100_000);
// Player at y=0 (chunk Y = 0). V=2 wants Y ∈ [-2, 2], but valid Y is [0, 8).
// So only Y ∈ {0, 1, 2} qualifies → 1 × 3 × 1 = 3 chunks.
streamer.Tick(new Vector3i(0, 0, 0));
Assert.Equal(3, created.Count);
Assert.NotNull(world.GetChunk(new Vector3i(0, 0, 0)));
Assert.NotNull(world.GetChunk(new Vector3i(0, 1, 0)));
Assert.NotNull(world.GetChunk(new Vector3i(0, 2, 0)));
for (int cy = 0; cy < WorldConstants.WorldHeightChunks; cy++)
{
var pos = new Vector3i(0, cy, 0);
Assert.NotNull(world.GetChunk(pos));
Assert.True(streamer.IsReady(pos));
}
}
[Fact]
@@ -172,7 +172,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -201,7 +200,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -224,7 +222,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -251,7 +248,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
SpawnReadyRadiusHorizontal = 1,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 1, // throttle to expose progression
@@ -271,7 +267,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -296,7 +291,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -318,7 +312,7 @@ public class ChunkStreamerTests
[Fact]
public void MarkDirty_OnUntrackedChunk_IsNoOp()
{
var cfg = new Configuration { RenderDistanceHorizontal = 0, RenderDistanceVertical = 0 };
var cfg = new Configuration { RenderDistanceHorizontal = 0 };
var (streamer, _, created) = CreateStreamer(cfg);
streamer.MarkDirty(new Vector3i(99, 0, 99));
@@ -334,7 +328,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -368,7 +361,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -400,20 +392,20 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 1,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 5, // player's chunk + 4 horizontal cardinals
VerticalPriorityWeight = 4,
};
var (streamer, world, _) = CreateStreamer(cfg);
// Surface at worldY 48 -> top chunk 3, so a full column is cy 0..3 and
// the player at Y=2 has in-column vertical neighbours at Y=1 and Y=3.
var (streamer, world, _) = CreateStreamer(cfg, surfaceHeightAt: (_, _) => 48);
// Player chunk at Y=2 so vertical neighbors Y=1 and Y=3 are valid.
var playerPos = new Vector3i(0, 2, 0);
streamer.Tick(playerPos);
// Drain budget = 5 = priority 0 (player) + 4 priority-1 (horizontal
// cardinals). With VerticalPriorityWeight=4, vertical cardinals
// (Y=1, Y=3) have priority 4 — they should NOT be among the first 5.
// (Y=1, Y=3) have priority 4 -- they must NOT be among the first 5.
Assert.NotNull(world.GetChunk(playerPos));
Assert.NotNull(world.GetChunk(new Vector3i( 1, 2, 0)));
Assert.NotNull(world.GetChunk(new Vector3i(-1, 2, 0)));
@@ -424,27 +416,55 @@ public class ChunkStreamerTests
}
[Fact]
public void Tick_LoadsSurfaceShell_AndExcludesAirAboveSurface()
public void Tick_LoadsFullColumn_FromBedrockToSurface()
{
var cfg = new Configuration
{
RenderDistanceHorizontal = 0, // single column at the player
RenderDistanceVertical = 0, // slab is just the player's chunk
SurfaceShellSkirtBelow = 1,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
// Surface at worldY 40 → chunk Y 2. Shell = [2-1, 2] = {1, 2}. Slab at
// player Y=0 = {0}. Union = {0, 1, 2}. Chunk Y 3+ is air above surface.
// Surface at worldY 40 -> top chunk floor(40/16) = 2. Full column loads
// cy 0,1,2; chunk Y 3+ is air above the surface and must NOT load.
var (streamer, world, _) = CreateStreamer(cfg, surfaceHeightAt: (_, _) => 40);
streamer.Tick(new Vector3i(0, 0, 0));
Assert.NotNull(world.GetChunk(new Vector3i(0, 0, 0))); // slab
Assert.NotNull(world.GetChunk(new Vector3i(0, 1, 0))); // shell skirt
Assert.NotNull(world.GetChunk(new Vector3i(0, 2, 0))); // shell surface
Assert.Null(world.GetChunk(new Vector3i(0, 3, 0))); // air above surface — not loaded
Assert.Null(world.GetChunk(new Vector3i(0, 5, 0))); // air above surface — not loaded
Assert.NotNull(world.GetChunk(new Vector3i(0, 0, 0))); // bedrock
Assert.NotNull(world.GetChunk(new Vector3i(0, 1, 0))); // mid
Assert.NotNull(world.GetChunk(new Vector3i(0, 2, 0))); // surface
Assert.Null(world.GetChunk(new Vector3i(0, 3, 0))); // air above surface
Assert.Null(world.GetChunk(new Vector3i(0, 5, 0))); // air above surface
}
[Fact]
public void Tick_LoadsEditedSectionAboveSurface()
{
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
var registry = new BlockRegistry();
var store = new InMemoryChunkModificationStore();
var world = new World.World(registry, store);
var mesher = new FakeMesher();
var executor = new SynchronousJobExecutor();
Func<float[], IChunkRenderer> factory = m => new FakeRenderer(m);
Func<Vector3i, VoxelChunk> generate = _ => new VoxelChunk();
// Surface at worldY 8 -> top chunk 0. A player edit sits in chunk Y 5,
// far above the surface; that edited section must still load.
var edited = new Vector3i(0, 5, 0);
store.RecordEdit(edited, 0, registry.Stone.Id);
var streamer = new ChunkStreamer(cfg, world, generate, (_, _) => 8, mesher, registry, executor, factory);
streamer.Tick(new Vector3i(0, 0, 0));
Assert.NotNull(world.GetChunk(new Vector3i(0, 0, 0))); // surface column
Assert.NotNull(world.GetChunk(edited)); // edited air section above surface
Assert.Null(world.GetChunk(new Vector3i(0, 3, 0))); // unedited air -- not loaded
}
[Fact]
@@ -453,7 +473,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
SpawnReadyRadiusHorizontal = 1,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
@@ -476,7 +495,6 @@ public class ChunkStreamerTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};

2
VoxelEngine.Tests/Streaming/StreamingIntegrationTests.cs
View File

@@ -32,7 +32,6 @@ public class StreamingIntegrationTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 1,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};
@@ -58,7 +57,6 @@ public class StreamingIntegrationTests
var cfg = new Configuration
{
RenderDistanceHorizontal = 0,
RenderDistanceVertical = 0,
MaxGenerateJobsInFlight = 100,
MaxMeshUploadsPerFrame = 100,
};