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Differential D15982 Diff 55757 source/blender/nodes/geometry/nodes/node_geo_input_mesh_face_is_planar.cc

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source/blender/nodes/geometry/nodes/node_geo_input_mesh_face_is_planar.cc

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{ {
category_ = Category::Generated; category_ = Category::Generated;
} }
GVArray get_varray_for_context(const Mesh &mesh, GVArray get_varray_for_context(const Mesh &mesh,
const eAttrDomain domain, const eAttrDomain domain,
IndexMask /*mask*/) const final IndexMask /*mask*/) const final
{ {
const Span<MVert> verts = mesh.verts(); const Span<float3> positions = mesh.positions();
const Span<MPoly> polys = mesh.polys(); const Span<MPoly> polys = mesh.polys();
const Span<MLoop> loops = mesh.loops(); const Span<MLoop> loops = mesh.loops();
const Span<float3> poly_normals{(float3 *)BKE_mesh_poly_normals_ensure(&mesh), mesh.totpoly}; const Span<float3> poly_normals{(float3 *)BKE_mesh_poly_normals_ensure(&mesh), mesh.totpoly};
bke::MeshFieldContext context{mesh, ATTR_DOMAIN_FACE}; bke::MeshFieldContext context{mesh, ATTR_DOMAIN_FACE};
fn::FieldEvaluator evaluator{context, polys.size()}; fn::FieldEvaluator evaluator{context, polys.size()};
evaluator.add(threshold_); evaluator.add(threshold_);
evaluator.evaluate(); evaluator.evaluate();
const VArray<float> thresholds = evaluator.get_evaluated<float>(0); const VArray<float> thresholds = evaluator.get_evaluated<float>(0);
auto planar_fn = [verts, polys, loops, thresholds, poly_normals](const int i) -> bool { auto planar_fn = [positions, polys, loops, thresholds, poly_normals](const int i) -> bool {
const MPoly &poly = polys[i]; const MPoly &poly = polys[i];
if (poly.totloop <= 3) { if (poly.totloop <= 3) {
return true; return true;
} }
const Span<MLoop> poly_loops = loops.slice(poly.loopstart, poly.totloop); const Span<MLoop> poly_loops = loops.slice(poly.loopstart, poly.totloop);
const float3 &reference_normal = poly_normals[i]; const float3 &reference_normal = poly_normals[i];
float min = FLT_MAX; float min = FLT_MAX;
float max = -FLT_MAX; float max = -FLT_MAX;
for (const int i_loop : poly_loops.index_range()) { for (const int i_loop : poly_loops.index_range()) {
const float3 vert = verts[poly_loops[i_loop].v].co; const float3 &vert = positions[poly_loops[i_loop].v];
float dot = math::dot(reference_normal, vert); float dot = math::dot(reference_normal, vert);
if (dot > max) { if (dot > max) {
max = dot; max = dot;
} }
if (dot < min) { if (dot < min) {
min = dot; min = dot;
} }
} }
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