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Fix #104841: Split function for Cycles for sharp edges ignores attribute

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Cycles uses the "split faces" mesh function to support sharp edges
and auto-smooth. However, 75ad8da1ea updated that
function to ignore the edges that are explicitly tagged as sharp and
only use the edge angle. Fix by taking the attribute into account too.
This commit is contained in:
Hans Goudey
2023-02-16 16:59:58 -05:00
parent 4ebb66864a
commit efc2e5134f
1 changed files with 6 additions and 1 deletions
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7
source/blender/editors/mesh/mesh_data.cc
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@@ -1534,8 +1534,13 @@ void ED_mesh_split_faces(Mesh *mesh)
const Span<MPoly> polys = mesh->polys();
const Span<MLoop> loops = mesh->loops();
const float split_angle = (mesh->flag & ME_AUTOSMOOTH) != 0 ? mesh->smoothresh : float(M_PI);
const bke::AttributeAccessor attributes = mesh->attributes();
const VArray<bool> mesh_sharp_edges = attributes.lookup_or_default<bool>(
"sharp_edge", ATTR_DOMAIN_EDGE, false);
Array<bool> sharp_edges(mesh->totedge);
mesh_sharp_edges.materialize(sharp_edges);
Array<bool> sharp_edges(mesh->totedge, false);
BKE_edges_sharp_from_angle_set(mesh->totedge,
loops.data(),
loops.size(),