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Differential D15982 Diff 56063 source/blender/nodes/geometry/nodes/node_geo_duplicate_elements.cc

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source/blender/nodes/geometry/nodes/node_geo_duplicate_elements.cc

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{ {
if (!geometry_set.has_mesh()) { if (!geometry_set.has_mesh()) {
geometry_set.remove_geometry_during_modify(); geometry_set.remove_geometry_during_modify();
return; return;
} }
geometry_set.keep_only_during_modify({GEO_COMPONENT_TYPE_MESH}); geometry_set.keep_only_during_modify({GEO_COMPONENT_TYPE_MESH});
const Mesh &mesh = *geometry_set.get_mesh_for_read(); const Mesh &mesh = *geometry_set.get_mesh_for_read();
const Span<MVert> verts = mesh.verts();
const Span<MEdge> edges = mesh.edges(); const Span<MEdge> edges = mesh.edges();
const Span<MPoly> polys = mesh.polys(); const Span<MPoly> polys = mesh.polys();
const Span<MLoop> loops = mesh.loops(); const Span<MLoop> loops = mesh.loops();
bke::MeshFieldContext field_context{mesh, ATTR_DOMAIN_FACE}; bke::MeshFieldContext field_context{mesh, ATTR_DOMAIN_FACE};
FieldEvaluator evaluator(field_context, polys.size()); FieldEvaluator evaluator(field_context, polys.size());
evaluator.add(count_field); evaluator.add(count_field);
evaluator.set_selection(selection_field); evaluator.set_selection(selection_field);
evaluator.evaluate(); evaluator.evaluate();
const IndexMask selection = evaluator.get_evaluated_selection_as_mask(); const IndexMask selection = evaluator.get_evaluated_selection_as_mask();
const VArray<int> counts = evaluator.get_evaluated<int>(0); const VArray<int> counts = evaluator.get_evaluated<int>(0);
int total_polys = 0; int total_polys = 0;
int total_loops = 0; int total_loops = 0;
Array<int> offsets(selection.size() + 1); Array<int> offsets(selection.size() + 1);
for (const int i_selection : selection.index_range()) { for (const int i_selection : selection.index_range()) {
const int count = std::max(counts[selection[i_selection]], 0); const int count = std::max(counts[selection[i_selection]], 0);
offsets[i_selection] = total_polys; offsets[i_selection] = total_polys;
total_polys += count; total_polys += count;
total_loops += count * polys[selection[i_selection]].totloop; total_loops += count * polys[selection[i_selection]].totloop;
} }
offsets[selection.size()] = total_polys; offsets[selection.size()] = total_polys;
Mesh *new_mesh = BKE_mesh_new_nomain(total_loops, total_loops, 0, total_loops, total_polys); Mesh *new_mesh = BKE_mesh_new_nomain(total_loops, total_loops, 0, total_loops, total_polys);
MutableSpan<MVert> new_verts = new_mesh->verts_for_write();
MutableSpan<MEdge> new_edges = new_mesh->edges_for_write(); MutableSpan<MEdge> new_edges = new_mesh->edges_for_write();
MutableSpan<MPoly> new_polys = new_mesh->polys_for_write(); MutableSpan<MPoly> new_polys = new_mesh->polys_for_write();
MutableSpan<MLoop> new_loops = new_mesh->loops_for_write(); MutableSpan<MLoop> new_loops = new_mesh->loops_for_write();
Array<int> vert_mapping(new_verts.size()); Array<int> vert_mapping(new_mesh->totvert);
Array<int> edge_mapping(new_edges.size()); Array<int> edge_mapping(new_edges.size());
Array<int> loop_mapping(new_loops.size()); Array<int> loop_mapping(new_loops.size());
int poly_index = 0; int poly_index = 0;
int loop_index = 0; int loop_index = 0;
for (const int i_selection : selection.index_range()) { for (const int i_selection : selection.index_range()) {
const IndexRange poly_range = range_for_offsets_index(offsets, i_selection); const IndexRange poly_range = range_for_offsets_index(offsets, i_selection);
const MPoly &source = polys[selection[i_selection]]; const MPoly &source = polys[selection[i_selection]];
for ([[maybe_unused]] const int i_duplicate : IndexRange(poly_range.size())) { for ([[maybe_unused]] const int i_duplicate : IndexRange(poly_range.size())) {
new_polys[poly_index] = source; new_polys[poly_index] = source;
new_polys[poly_index].loopstart = loop_index; new_polys[poly_index].loopstart = loop_index;
for (const int i_loops : IndexRange(source.totloop)) { for (const int i_loops : IndexRange(source.totloop)) {
const MLoop &current_loop = loops[source.loopstart + i_loops]; const MLoop &current_loop = loops[source.loopstart + i_loops];
loop_mapping[loop_index] = source.loopstart + i_loops; loop_mapping[loop_index] = source.loopstart + i_loops;
new_verts[loop_index] = verts[current_loop.v];
vert_mapping[loop_index] = current_loop.v; vert_mapping[loop_index] = current_loop.v;
new_edges[loop_index] = edges[current_loop.e]; new_edges[loop_index] = edges[current_loop.e];
edge_mapping[loop_index] = current_loop.e; edge_mapping[loop_index] = current_loop.e;
new_edges[loop_index].v1 = loop_index; new_edges[loop_index].v1 = loop_index;
if (i_loops + 1 != source.totloop) { if (i_loops + 1 != source.totloop) {
new_edges[loop_index].v2 = loop_index + 1; new_edges[loop_index].v2 = loop_index + 1;
} }
else { else {
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* \{ */ * \{ */
static void duplicate_points_mesh(GeometrySet &geometry_set, static void duplicate_points_mesh(GeometrySet &geometry_set,
const Field<int> &count_field, const Field<int> &count_field,
const Field<bool> &selection_field, const Field<bool> &selection_field,
const IndexAttributes &attribute_outputs) const IndexAttributes &attribute_outputs)
{ {
const Mesh &mesh = *geometry_set.get_mesh_for_read(); const Mesh &mesh = *geometry_set.get_mesh_for_read();
const Span<MVert> src_verts = mesh.verts();
bke::MeshFieldContext field_context{mesh, ATTR_DOMAIN_POINT}; bke::MeshFieldContext field_context{mesh, ATTR_DOMAIN_POINT};
FieldEvaluator evaluator{field_context, src_verts.size()}; FieldEvaluator evaluator{field_context, mesh.totvert};
evaluator.add(count_field); evaluator.add(count_field);
evaluator.set_selection(selection_field); evaluator.set_selection(selection_field);
evaluator.evaluate(); evaluator.evaluate();
const VArray<int> counts = evaluator.get_evaluated<int>(0); const VArray<int> counts = evaluator.get_evaluated<int>(0);
const IndexMask selection = evaluator.get_evaluated_selection_as_mask(); const IndexMask selection = evaluator.get_evaluated_selection_as_mask();
Array<int> offsets = accumulate_counts_to_offsets(selection, counts); Array<int> offsets = accumulate_counts_to_offsets(selection, counts);
Mesh *new_mesh = BKE_mesh_new_nomain(offsets.last(), 0, 0, 0, 0); Mesh *new_mesh = BKE_mesh_new_nomain(offsets.last(), 0, 0, 0, 0);
MutableSpan<MVert> dst_verts = new_mesh->verts_for_write();
threaded_slice_fill(offsets.as_span(), selection, src_verts, dst_verts);
copy_attributes_without_id(geometry_set, copy_attributes_without_id(geometry_set,
GEO_COMPONENT_TYPE_MESH, GEO_COMPONENT_TYPE_MESH,
ATTR_DOMAIN_POINT, ATTR_DOMAIN_POINT,
offsets, offsets,
selection, selection,
mesh.attributes(), mesh.attributes(),
new_mesh->attributes_for_write()); new_mesh->attributes_for_write());
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