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Refactor terrain chunk rendering to use geometry arrays and simplify mesh management

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This commit is contained in:
Victor Giers
2026-04-29 23:14:10 +02:00
parent d5739e11a3
commit 4caff728d1
1 changed files with 37 additions and 37 deletions
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74
src/viewport-three/viewport-host.ts
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@@ -346,8 +346,9 @@ interface TerrainRenderObjects {
}
interface TerrainRenderChunkObjects {
levels: Mesh<BufferGeometry, Material>[];
debugLevels: Mesh<BufferGeometry, MeshBasicMaterial>[];
mesh: Mesh<BufferGeometry, Material>;
debugMesh: Mesh<BufferGeometry, MeshBasicMaterial>;
levelGeometries: BufferGeometry[];
activeLevelIndex: number;
worldCenter: Vec3;
diagonal: number;
@@ -6429,39 +6430,34 @@ export class ViewportHost {
group.position.set(terrain.position.x, terrain.position.y, terrain.position.z);
for (const chunk of lodMeshData.chunks) {
const levels: Mesh<BufferGeometry, Material>[] = [];
const debugLevels: Mesh<BufferGeometry, MeshBasicMaterial>[] = [];
const levelGeometries = chunk.levels.map((level) => level.geometry);
const mesh = new Mesh(levelGeometries[0]!, material);
mesh.userData.terrainId = terrain.id;
mesh.userData.terrainLodLevel = 0;
mesh.castShadow = false;
mesh.receiveShadow = true;
applyRendererRenderCategory(mesh, "ao-world");
group.add(mesh);
for (const level of chunk.levels) {
const mesh = new Mesh(level.geometry, material);
mesh.userData.terrainId = terrain.id;
mesh.userData.terrainLodLevel = level.level;
mesh.castShadow = false;
mesh.receiveShadow = true;
mesh.visible = level.level === 0;
applyRendererRenderCategory(mesh, "ao-world");
group.add(mesh);
levels.push(mesh);
const debugMaterial = debugMaterials[0]!;
const debugMesh = new Mesh(levelGeometries[0]!, debugMaterial);
debugMesh.visible = false;
debugMesh.renderOrder = 20;
debugMesh.userData.selectionIgnored = true;
debugMesh.userData.nonPickable = true;
applyRendererRenderCategory(debugMesh, "overlay");
group.add(debugMesh);
const debugMaterial =
debugMaterials[level.level] ??
debugMaterials[debugMaterials.length - 1]!;
const debugMesh = new Mesh(level.geometry, debugMaterial);
debugMesh.visible = false;
debugMesh.renderOrder = 20;
debugMesh.userData.selectionIgnored = true;
applyRendererRenderCategory(debugMesh, "overlay");
group.add(debugMesh);
debugLevels.push(debugMesh);
}
if (levels[0] !== undefined) {
pickMeshes.push(levels[0]);
}
const pickMesh = new Mesh(levelGeometries[0]!, material);
pickMesh.visible = false;
pickMesh.userData.terrainId = terrain.id;
group.add(pickMesh);
pickMeshes.push(pickMesh);
chunks.push({
levels,
debugLevels,
mesh,
debugMesh,
levelGeometries,
activeLevelIndex: 0,
worldCenter: {
x: terrain.position.x + chunk.localCenter.x,
@@ -6495,7 +6491,7 @@ export class ViewportHost {
for (const chunk of renderObjects.chunks) {
const nextLevelIndex = resolveTerrainLodLevelIndex({
levelCount: chunk.levels.length,
levelCount: chunk.levelGeometries.length,
chunkDiagonal: chunk.diagonal,
cameraPosition,
chunkWorldCenter: chunk.worldCenter,
@@ -6504,13 +6500,17 @@ export class ViewportHost {
if (chunk.activeLevelIndex !== nextLevelIndex) {
chunk.activeLevelIndex = nextLevelIndex;
chunk.mesh.geometry = chunk.levelGeometries[nextLevelIndex]!;
chunk.mesh.userData.terrainLodLevel = nextLevelIndex;
chunk.debugMesh.geometry = chunk.levelGeometries[nextLevelIndex]!;
chunk.debugMesh.material =
renderObjects.debugMaterials[nextLevelIndex] ??
renderObjects.debugMaterials[
renderObjects.debugMaterials.length - 1
]!;
}
for (let levelIndex = 0; levelIndex < chunk.levels.length; levelIndex += 1) {
const active = levelIndex === chunk.activeLevelIndex;
chunk.levels[levelIndex]!.visible = active;
chunk.debugLevels[levelIndex]!.visible = selected && active;
}
chunk.debugMesh.visible = selected;
}
}
}