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
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "GEO_mesh_merge_by_distance.hh"
#include "GEO_point_merge_by_distance.hh"
#include "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_merge_by_distance_cc {
NODE_STORAGE_FUNCS(NodeGeometryMergeByDistance)
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>(N_("Geometry"))
.supported_type({GEO_COMPONENT_TYPE_POINT_CLOUD, GEO_COMPONENT_TYPE_MESH});
b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().supports_field();
b.add_input<decl::Float>(N_("Distance")).default_value(0.001f).min(0.0f).subtype(PROP_DISTANCE);
b.add_output<decl::Geometry>(N_("Geometry"));
}
static void node_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
{
uiLayoutSetPropSep(layout, true);
uiLayoutSetPropDecorate(layout, false);
uiItemR(layout, ptr, "mode", 0, "", ICON_NONE);
}
static void node_init(bNodeTree *UNUSED(tree), bNode *node)
{
NodeGeometryMergeByDistance *data = MEM_cnew<NodeGeometryMergeByDistance>(__func__);
data->mode = GEO_NODE_MERGE_BY_DISTANCE_MODE_ALL;
node->storage = data;
}
static PointCloud *pointcloud_merge_by_distance(const PointCloudComponent &src_points,
const float merge_distance,
const Field<bool> &selection_field)
{
const int src_num = src_points.attribute_domain_size(ATTR_DOMAIN_POINT);
GeometryComponentFieldContext context{src_points, ATTR_DOMAIN_POINT};
FieldEvaluator evaluator{context, src_num};
evaluator.add(selection_field);
evaluator.evaluate();
const IndexMask selection = evaluator.get_evaluated_as_mask(0);
if (selection.is_empty()) {
return nullptr;
}
return geometry::point_merge_by_distance(*src_points.get_for_read(), merge_distance, selection);
}
static std::optional<Mesh *> mesh_merge_by_distance_connected(const MeshComponent &mesh_component,
const float merge_distance,
const Field<bool> &selection_field)
{
const int src_num = mesh_component.attribute_domain_size(ATTR_DOMAIN_POINT);
Array<bool> selection(src_num);
GeometryComponentFieldContext context{mesh_component, ATTR_DOMAIN_POINT};
FieldEvaluator evaluator{context, src_num};
evaluator.add_with_destination(selection_field, selection.as_mutable_span());
evaluator.evaluate();
const Mesh &mesh = *mesh_component.get_for_read();
return geometry::mesh_merge_by_distance_connected(mesh, selection, merge_distance, false);
}
static std::optional<Mesh *> mesh_merge_by_distance_all(const MeshComponent &mesh_component,
const float merge_distance,
const Field<bool> &selection_field)
{
const int src_num = mesh_component.attribute_domain_size(ATTR_DOMAIN_POINT);
GeometryComponentFieldContext context{mesh_component, ATTR_DOMAIN_POINT};
FieldEvaluator evaluator{context, src_num};
evaluator.add(selection_field);
evaluator.evaluate();
const IndexMask selection = evaluator.get_evaluated_as_mask(0);
if (selection.is_empty()) {
return std::nullopt;
}
const Mesh &mesh = *mesh_component.get_for_read();
return geometry::mesh_merge_by_distance_all(mesh, selection, merge_distance);
}
static void node_geo_exec(GeoNodeExecParams params)
{
const NodeGeometryMergeByDistance &storage = node_storage(params.node());
const GeometryNodeMergeByDistanceMode mode = (GeometryNodeMergeByDistanceMode)storage.mode;
GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
const Field<bool> selection = params.extract_input<Field<bool>>("Selection");
const float merge_distance = params.extract_input<float>("Distance");
geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
if (geometry_set.has_pointcloud()) {
PointCloud *result = pointcloud_merge_by_distance(
*geometry_set.get_component_for_read<PointCloudComponent>(), merge_distance, selection);
if (result) {
geometry_set.replace_pointcloud(result);
}
}
if (geometry_set.has_mesh()) {
const MeshComponent &component = *geometry_set.get_component_for_read<MeshComponent>();
std::optional<Mesh *> result;
switch (mode) {
case GEO_NODE_MERGE_BY_DISTANCE_MODE_ALL:
result = mesh_merge_by_distance_all(component, merge_distance, selection);
break;
case GEO_NODE_MERGE_BY_DISTANCE_MODE_CONNECTED:
result = mesh_merge_by_distance_connected(component, merge_distance, selection);
break;
default:
BLI_assert_unreachable();
}
if (result) {
geometry_set.replace_mesh(*result);
}
}
});
params.set_output("Geometry", std::move(geometry_set));
}
} // namespace blender::nodes::node_geo_merge_by_distance_cc
void register_node_type_geo_merge_by_distance()
{
namespace file_ns = blender::nodes::node_geo_merge_by_distance_cc;
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_MERGE_BY_DISTANCE, "Merge by Distance", NODE_CLASS_GEOMETRY);
node_type_init(&ntype, file_ns::node_init);
node_type_storage(&ntype,
"NodeGeometryMergeByDistance",
node_free_standard_storage,
node_copy_standard_storage);
ntype.declare = file_ns::node_declare;
ntype.geometry_node_execute = file_ns::node_geo_exec;
ntype.draw_buttons = file_ns::node_layout;
nodeRegisterType(&ntype);
}
|
