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[change] src/geometry/spline-road-mesh.ts
This commit is contained in:
Victor Giers
2026-05-13 13:19:08 +02:00
parent 5a0f9f1245
commit c774026e2c
1 changed files with 68 additions and 50 deletions
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32
src/geometry/spline-road-mesh.ts
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@@ -512,6 +512,7 @@ export function buildSplineRoadEdgeMeshData(options: {
path: SplineRoadPathLike; path: SplineRoadPathLike;
side: ScenePathRoadEdgeSide; side: ScenePathRoadEdgeSide;
terrains?: readonly Terrain[]; terrains?: readonly Terrain[];
clipIntervals?: readonly SplineCorridorPathClipInterval[];
}): SplineRoadEdgeMeshData | null { }): SplineRoadEdgeMeshData | null {
const { path, side } = options; const { path, side } = options;
const edge = path.road.edges[side]; const edge = path.road.edges[side];
@@ -542,10 +543,18 @@ export function buildSplineRoadEdgeMeshData(options: {
const uvs: number[] = []; const uvs: number[] = [];
const indices: number[] = []; const indices: number[] = [];
const profileLastIndex = Math.max(1, profile.length - 1); const profileLastIndex = Math.max(1, profile.length - 1);
const stationRuns = buildVisibleRoadStationRuns(
stations,
options.clipIntervals ?? []
);
let stationCount = 0;
for (let stationIndex = 0; stationIndex < stations.length; stationIndex += 1) { for (const run of stationRuns) {
const station = stations[stationIndex]!; const runVertexOffset = positions.length / 3;
const tangent = resolveStationTangent(stations, stationIndex);
for (let stationIndex = 0; stationIndex < run.length; stationIndex += 1) {
const station = run[stationIndex]!;
const tangent = resolveStationTangent(run, stationIndex);
if (tangent === null) { if (tangent === null) {
return null; return null;
@@ -580,8 +589,8 @@ export function buildSplineRoadEdgeMeshData(options: {
} }
} }
for (let stationIndex = 0; stationIndex < stations.length - 1; stationIndex += 1) { for (let stationIndex = 0; stationIndex < run.length - 1; stationIndex += 1) {
const currentRow = stationIndex * profile.length; const currentRow = runVertexOffset + stationIndex * profile.length;
const nextRow = currentRow + profile.length; const nextRow = currentRow + profile.length;
for (let profileIndex = 0; profileIndex < profile.length - 1; profileIndex += 1) { for (let profileIndex = 0; profileIndex < profile.length - 1; profileIndex += 1) {
@@ -598,17 +607,25 @@ export function buildSplineRoadEdgeMeshData(options: {
addEdgeProfileCaps({ addEdgeProfileCaps({
indices, indices,
profileVertexCount: profile.length, profileVertexCount: profile.length,
stationCount: stations.length vertexOffset: runVertexOffset,
stationCount: run.length
}); });
} }
stationCount += run.length;
}
if (positions.length === 0) {
return null;
}
return { return {
pathId: path.id, pathId: path.id,
side, side,
positions: new Float32Array(positions), positions: new Float32Array(positions),
uvs: new Float32Array(uvs), uvs: new Float32Array(uvs),
indices: new Uint32Array(indices), indices: new Uint32Array(indices),
stationCount: stations.length, stationCount,
totalLength: stations[stations.length - 1]?.distance ?? 0 totalLength: stations[stations.length - 1]?.distance ?? 0
}; };
} }
@@ -617,6 +634,7 @@ export function buildSplineRoadEdgeMeshGeometry(options: {
path: SplineRoadPathLike; path: SplineRoadPathLike;
side: ScenePathRoadEdgeSide; side: ScenePathRoadEdgeSide;
terrains?: readonly Terrain[]; terrains?: readonly Terrain[];
clipIntervals?: readonly SplineCorridorPathClipInterval[];
}): BufferGeometry | null { }): BufferGeometry | null {
const meshData = buildSplineRoadEdgeMeshData(options); const meshData = buildSplineRoadEdgeMeshData(options);