blob: 97c950988e7ea62e2d127ddd41c5ac66096f0737 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "BKE_mesh.h"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_input_mesh_edge_neighbors_cc {
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_output<decl::Int>(N_("Face Count"))
.field_source()
.description(N_("The number of faces that use each edge as one of their sides"));
}
class EdgeNeighborCountFieldInput final : public bke::MeshFieldInput {
public:
EdgeNeighborCountFieldInput()
: bke::MeshFieldInput(CPPType::get<int>(), "Edge Neighbor Count Field")
{
category_ = Category::Generated;
}
GVArray get_varray_for_context(const Mesh &mesh,
const eAttrDomain domain,
const IndexMask /*mask*/) const final
{
const Span<MLoop> loops = mesh.loops();
Array<int> face_count(mesh.totedge, 0);
for (const MLoop &loop : loops) {
face_count[loop.e]++;
}
return mesh.attributes().adapt_domain<int>(
VArray<int>::ForContainer(std::move(face_count)), ATTR_DOMAIN_EDGE, domain);
}
uint64_t hash() const override
{
/* Some random constant hash. */
return 985671075;
}
bool is_equal_to(const fn::FieldNode &other) const override
{
return dynamic_cast<const EdgeNeighborCountFieldInput *>(&other) != nullptr;
}
std::optional<eAttrDomain> preferred_domain(const Mesh & /*mesh*/) const override
{
return ATTR_DOMAIN_EDGE;
}
};
static void node_geo_exec(GeoNodeExecParams params)
{
Field<int> neighbor_count_field{std::make_shared<EdgeNeighborCountFieldInput>()};
params.set_output("Face Count", std::move(neighbor_count_field));
}
} // namespace blender::nodes::node_geo_input_mesh_edge_neighbors_cc
void register_node_type_geo_input_mesh_edge_neighbors()
{
namespace file_ns = blender::nodes::node_geo_input_mesh_edge_neighbors_cc;
static bNodeType ntype;
geo_node_type_base(
&ntype, GEO_NODE_INPUT_MESH_EDGE_NEIGHBORS, "Edge Neighbors", NODE_CLASS_INPUT);
ntype.declare = file_ns::node_declare;
ntype.geometry_node_execute = file_ns::node_geo_exec;
nodeRegisterType(&ntype);
}
|
