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improve slice/preview visuals with custom normals

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This commit is contained in:
Stewart Allen 2022-10-14 12:42:51 -04:00
commit ce856146e9
7 changed files with 143 additions and 41 deletions
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30
src/kiri/stack.js
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@ -101,7 +101,7 @@ class Stack {
}
}
const { polys, lines, faces, cface, paths, cpath, color, off } = layer;
const { polys, lines, faces, cface, paths, cpath, color, off, norms } = layer;
const meshes = [];
const defstate = !off;
const mats = [];
@ -168,15 +168,20 @@ class Stack {
} else {
geo.setAttribute('position', new THREE.BufferAttribute(faces, 3));
}
geo.computeVertexNormals();
if (norms) {
geo.setAttribute('normal', new THREE.BufferAttribute(norms, 3));
// geo.normalizeNormals();
} else {
geo.computeVertexNormals();
}
if (cface) {
cface.forEach((c, i) => geo.addGroup(c.start, c.count, i));
} else {
geo.addGroup(0, Infinity, 0);
}
const mesh = new THREE.Mesh(geo, mat);
mesh.castShadow = true;
mesh.receiveShadow = true;
// mesh.castShadow = true;
// mesh.receiveShadow = true;
meshes.push(mesh);
group.add(mesh);
mats.appendAll(mat);
@ -191,11 +196,18 @@ class Stack {
mat.forEach(m => m.visible = defstate);
// const mat = newMat(data);
paths.forEach((path, i) => {
const { index, faces, z, colors } = path;
const { index, faces, norms, z, colors } = path;
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.BufferAttribute(faces, 3));
if (index.length) geo.setIndex(index);
geo.computeVertexNormals();
if (index.length) {
geo.setIndex(index);
}
if (norms) {
geo.setAttribute('normal', new THREE.BufferAttribute(norms, 3));
// geo.normalizeNormals();
} else {
geo.computeVertexNormals();
}
if (cpath) {
cpath.forEach((c, i) => geo.addGroup(c.start, c.count, i));
} else {
@ -203,8 +215,8 @@ class Stack {
}
const mesh = new THREE.Mesh(geo, mat);
mesh.position.z = z;
mesh.castShadow = true;
mesh.receiveShadow = true;
// mesh.castShadow = true;
// mesh.receiveShadow = true;
meshes.push(mesh);
group.add(mesh);
});