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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#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_vertices_cc {
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_output<decl::Int>(N_("Vertex Index 1"))
.field_source()
.description(N_("The index of the first vertex in the edge"));
b.add_output<decl::Int>(N_("Vertex Index 2"))
.field_source()
.description(N_("The index of the second vertex in the edge"));
b.add_output<decl::Vector>(N_("Position 1"))
.field_source()
.description(N_("The position of the first vertex in the edge"));
b.add_output<decl::Vector>(N_("Position 2"))
.field_source()
.description(N_("The position of the second vertex in the edge"));
}
enum VertexNumber { VERTEX_ONE, VERTEX_TWO };
static VArray<int> construct_edge_vertices_gvarray(const MeshComponent &component,
const VertexNumber vertex,
const AttributeDomain domain)
{
const Mesh *mesh = component.get_for_read();
if (mesh == nullptr) {
return {};
}
if (domain == ATTR_DOMAIN_EDGE) {
if (vertex == VERTEX_ONE) {
return VArray<int>::ForFunc(mesh->totedge,
[mesh](const int i) -> int { return mesh->medge[i].v1; });
}
return VArray<int>::ForFunc(mesh->totedge,
[mesh](const int i) -> int { return mesh->medge[i].v2; });
}
return {};
}
class EdgeVerticesFieldInput final : public GeometryFieldInput {
private:
VertexNumber vertex_;
public:
EdgeVerticesFieldInput(VertexNumber vertex)
: GeometryFieldInput(CPPType::get<int>(), "Edge Vertices Field"), vertex_(vertex)
{
category_ = Category::Generated;
}
GVArray get_varray_for_context(const GeometryComponent &component,
const AttributeDomain domain,
IndexMask UNUSED(mask)) const final
{
if (component.type() == GEO_COMPONENT_TYPE_MESH) {
const MeshComponent &mesh_component = static_cast<const MeshComponent &>(component);
return construct_edge_vertices_gvarray(mesh_component, vertex_, domain);
}
return {};
}
uint64_t hash() const override
{
return vertex_ == VERTEX_ONE ? 23847562893465 : 92384598734567;
}
bool is_equal_to(const fn::FieldNode &other) const override
{
if (const EdgeVerticesFieldInput *other_field = dynamic_cast<const EdgeVerticesFieldInput *>(
&other)) {
return vertex_ == other_field->vertex_;
}
return false;
}
};
static VArray<float3> construct_edge_positions_gvarray(const MeshComponent &component,
const VertexNumber vertex,
const AttributeDomain domain)
{
const Mesh *mesh = component.get_for_read();
if (mesh == nullptr) {
return {};
}
if (vertex == VERTEX_ONE) {
return component.attribute_try_adapt_domain<float3>(
VArray<float3>::ForFunc(
mesh->totedge,
[mesh](const int i) { return float3(mesh->mvert[mesh->medge[i].v1].co); }),
ATTR_DOMAIN_EDGE,
domain);
}
return component.attribute_try_adapt_domain<float3>(
VArray<float3>::ForFunc(
mesh->totedge,
[mesh](const int i) { return float3(mesh->mvert[mesh->medge[i].v2].co); }),
ATTR_DOMAIN_EDGE,
domain);
}
class EdgePositionFieldInput final : public GeometryFieldInput {
private:
VertexNumber vertex_;
public:
EdgePositionFieldInput(VertexNumber vertex)
: GeometryFieldInput(CPPType::get<float3>(), "Edge Position Field"), vertex_(vertex)
{
category_ = Category::Generated;
}
GVArray get_varray_for_context(const GeometryComponent &component,
const AttributeDomain domain,
IndexMask UNUSED(mask)) const final
{
if (component.type() == GEO_COMPONENT_TYPE_MESH) {
const MeshComponent &mesh_component = static_cast<const MeshComponent &>(component);
return construct_edge_positions_gvarray(mesh_component, vertex_, domain);
}
return {};
}
uint64_t hash() const override
{
return vertex_ == VERTEX_ONE ? 987456978362 : 374587679866;
}
bool is_equal_to(const fn::FieldNode &other) const override
{
if (const EdgePositionFieldInput *other_field = dynamic_cast<const EdgePositionFieldInput *>(
&other)) {
return vertex_ == other_field->vertex_;
}
return false;
}
};
static void node_geo_exec(GeoNodeExecParams params)
{
Field<int> vertex_field_1{std::make_shared<EdgeVerticesFieldInput>(VERTEX_ONE)};
Field<int> vertex_field_2{std::make_shared<EdgeVerticesFieldInput>(VERTEX_TWO)};
Field<float3> position_field_1{std::make_shared<EdgePositionFieldInput>(VERTEX_ONE)};
Field<float3> position_field_2{std::make_shared<EdgePositionFieldInput>(VERTEX_TWO)};
params.set_output("Vertex Index 1", std::move(vertex_field_1));
params.set_output("Vertex Index 2", std::move(vertex_field_2));
params.set_output("Position 1", std::move(position_field_1));
params.set_output("Position 2", std::move(position_field_2));
}
} // namespace blender::nodes::node_geo_input_mesh_edge_vertices_cc
void register_node_type_geo_input_mesh_edge_vertices()
{
namespace file_ns = blender::nodes::node_geo_input_mesh_edge_vertices_cc;
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_INPUT_MESH_EDGE_VERTICES, "Edge Vertices", NODE_CLASS_INPUT);
ntype.declare = file_ns::node_declare;
ntype.geometry_node_execute = file_ns::node_geo_exec;
nodeRegisterType(&ntype);
}
|
