fuhtho/3d-viewer
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix clipping box clipping planes error

Browse source
This commit is contained in:
Fuhrmann 2025-04-11 11:17:42 +02:00
parent ce20daeee2
commit 6bf44194b3
1 changed files with 9 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

24
app/three/utils/build-clipping-planes.ts
View file

@ -194,17 +194,23 @@ export function buildClippingplanes(
edgeMeshMap[p.orientation] = edges; edgeMeshMap[p.orientation] = edges;
} }
for (const o in Orientation) { for (const p of planesData) {
const capMeshGroupName = `cap-mesh-group-${o}`; // Create ClippingGroup for each cap mesh face
const capMeshGroupName = `cap-mesh-group-${p.orientation}`;
let capMeshGroup = scene.getObjectByName(capMeshGroupName) as ClippingGroup; let capMeshGroup = scene.getObjectByName(capMeshGroupName) as ClippingGroup;
if (capMeshGroup) { if (capMeshGroup) {
capMeshGroup.clear(); capMeshGroup.clear();
} else { } else {
capMeshGroup = new ClippingGroup(); capMeshGroup = new ClippingGroup();
capMeshGroup.name = capMeshGroupName; capMeshGroup.name = capMeshGroupName;
capMeshGroup.clippingPlanes = planes;
scene.add(capMeshGroup); scene.add(capMeshGroup);
} }
// Set clipping planes for the cap meshes
const capMeshGroupPlanes = planes.filter(
(plane) => plane.normal.dot(p.normal) !== 1
);
capMeshGroup.clippingPlanes = capMeshGroupPlanes;
} }
// Add meshes to the scene // Add meshes to the scene
@ -668,18 +674,6 @@ function generateCapMeshes(
capMesh.visible = mesh.visible; capMesh.visible = mesh.visible;
capMesh.name = mesh.name; capMesh.name = mesh.name;
// Offset mesh to avoid flickering
const normal = plane.normal.clone().multiplyScalar(10);
const positionAttr = capMesh.geometry.attributes.position;
for (let i = 0; i < positionAttr.count; i++) {
const x = positionAttr.getX(i) + normal.x;
const y = positionAttr.getY(i) + normal.y;
const z = positionAttr.getZ(i) + normal.z;
positionAttr.setXYZ(i, x, y, z);
}
positionAttr.needsUpdate = true;
if (capMesh && geometry.index && geometry.index.count > 0) { if (capMesh && geometry.index && geometry.index.count > 0) {
capMeshGroup.add(capMesh); capMeshGroup.add(capMesh);
} }