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fix split normals. model on bed no gap

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This commit is contained in:
Stewart Allen 2022-01-15 22:24:54 -05:00
commit c4fd0cef74
5 changed files with 40 additions and 19 deletions
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37
src/mesh/work.js
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@ -124,22 +124,31 @@ let model = {
o1.appendAll([...v1, ...v2, ...v3]);
}
if (split) {
let g1, g2, oa, ua;
if (overl === 2) {
// two over, one under
let vo = under[0] || on[0]; // under or on
let m1 = lerp(over[0], vo);
let m2 = lerp(over[1], vo);
o2.appendAll([ ...over[0], ...over[1], ...m1 ]);
o2.appendAll([ ...over[1], ...m1, ...m2 ]);
o1.appendAll([ ...m1, ...m2, ...under[0] ]);
g1 = o2;
g2 = o1;
oa = over;
ua = under;
} else {
// one over, two under
let vo = over[0] || on[0]; // over or on
let m1 = lerp(under[0], vo);
let m2 = lerp(under[1], vo);
o1.appendAll([ ...under[0], ...under[1], ...m1 ]);
o1.appendAll([ ...under[1], ...m1, ...m2 ]);
o2.appendAll([ ...m1, ...m2, ...over[0] ]);
g1 = o1;
g2 = o2;
oa = under;
ua = over;
}
let [ p1, p2 ] = oa;
let p3 = ua[0] || on[0]; // under or on
let m1 = lerp(p1, p3);
let m2 = lerp(p2, p3);
if (v2 === ua[0]) {
// reverse when the mid point gap
g1.appendAll([ ...m1, ...p2, ...p1 ]);
g1.appendAll([ ...m1, ...m2, ...p2 ]);
g2.appendAll([ ...p3, ...m2, ...m1 ]);
} else {
g1.appendAll([ ...p1, ...p2, ...m1 ]);
g1.appendAll([ ...p2, ...m2, ...m1 ]);
g2.appendAll([ ...m1, ...m2, ...p3 ]);
}
}
on.length = over.length = under.length = 0;