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fix nurbs rendering

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This commit is contained in:
Val Erastov 2017-10-06 22:21:31 -07:00
parent f5a27018bb
commit aeac9a80ef
1 changed files with 7 additions and 11 deletions
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18
web/app/3d/scene/brep-scene-object.js
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@ -104,7 +104,11 @@ export function triangulateToThree(shell, geom) {
const polygons = brepTess(brepFace);
const stitchedSurface = brepFace.data[FACE_CHUNK];
const nurbs = stitchedSurface ? stitchedSurface.origin : undefined;
let normalOrNormals = threeV(brepFace.surface.normalInMiddle());
const isPlane = brepFace.surface.data.degree === 1;
let normalOrNormals;
if (isPlane) {
normalOrNormals = threeV(brepFace.surface.normalInMiddle());
}
for (let p = 0; p < polygons.length; ++p) {
const off = geom.vertices.length;
const poly = polygons[p];
@ -119,16 +123,8 @@ export function triangulateToThree(shell, geom) {
const b = i - 1 + off;
const c = i + off;
if (nurbs && SMOOTH_RENDERING) {
function normal(v) {
const uv = nurbs.closestParam(v.data());
const vec = new THREE.Vector3();
vec.set.apply(vec, nurbs.normal(uv[0], uv[1]));
vec.normalize();
return vec;
}
normalOrNormals = [firstVertex, poly[i - 1], poly[i]].map(v => normal(v));
if (!isPlane) {
normalOrNormals = [firstVertex, poly[i - 1], poly[i]].map(v => brepFace.surface.normal(v));
}
const face = new THREE.Face3(a, b, c, normalOrNormals);
addFace(face);