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
|
/*
* 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 "BKE_mesh.h"
#include "BKE_subdiv.h"
#include "BKE_subdiv_mesh.h"
#include "DNA_modifier_types.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
namespace blender::nodes {
static void geo_node_subdivision_surface_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>(N_("Geometry"));
b.add_input<decl::Int>(N_("Level")).default_value(1).min(0).max(6);
b.add_input<decl::Bool>(N_("Use Creases"));
b.add_output<decl::Geometry>(N_("Geometry"));
}
static void geo_node_subdivision_surface_layout(uiLayout *layout,
bContext *UNUSED(C),
PointerRNA *ptr)
{
#ifdef WITH_OPENSUBDIV
uiLayoutSetPropSep(layout, true);
uiLayoutSetPropDecorate(layout, false);
uiItemR(layout, ptr, "uv_smooth", 0, nullptr, ICON_NONE);
uiItemR(layout, ptr, "boundary_smooth", 0, nullptr, ICON_NONE);
#else
UNUSED_VARS(layout, ptr);
#endif
}
static void geo_node_subdivision_surface_init(bNodeTree *UNUSED(ntree), bNode *node)
{
NodeGeometrySubdivisionSurface *data = (NodeGeometrySubdivisionSurface *)MEM_callocN(
sizeof(NodeGeometrySubdivisionSurface), __func__);
data->uv_smooth = SUBSURF_UV_SMOOTH_PRESERVE_BOUNDARIES;
data->boundary_smooth = SUBSURF_BOUNDARY_SMOOTH_ALL;
node->storage = data;
}
static void geo_node_subdivision_surface_exec(GeoNodeExecParams params)
{
GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
geometry_set = geometry_set_realize_instances(geometry_set);
if (!geometry_set.has_mesh()) {
params.set_output("Geometry", geometry_set);
return;
}
#ifndef WITH_OPENSUBDIV
params.error_message_add(NodeWarningType::Error,
TIP_("Disabled, Blender was compiled without OpenSubdiv"));
#else
const NodeGeometrySubdivisionSurface &storage =
*(const NodeGeometrySubdivisionSurface *)params.node().storage;
const int uv_smooth = storage.uv_smooth;
const int boundary_smooth = storage.boundary_smooth;
const int subdiv_level = clamp_i(params.extract_input<int>("Level"), 0, 30);
/* Only process subdivision if level is greater than 0. */
if (subdiv_level == 0) {
params.set_output("Geometry", std::move(geometry_set));
return;
}
const bool use_crease = params.extract_input<bool>("Use Creases");
const Mesh *mesh_in = geometry_set.get_mesh_for_read();
/* Initialize mesh settings. */
SubdivToMeshSettings mesh_settings;
mesh_settings.resolution = (1 << subdiv_level) + 1;
mesh_settings.use_optimal_display = false;
/* Initialize subdivision settings. */
SubdivSettings subdiv_settings;
subdiv_settings.is_simple = false;
subdiv_settings.is_adaptive = false;
subdiv_settings.use_creases = use_crease;
subdiv_settings.level = subdiv_level;
subdiv_settings.vtx_boundary_interpolation = BKE_subdiv_vtx_boundary_interpolation_from_subsurf(
boundary_smooth);
subdiv_settings.fvar_linear_interpolation = BKE_subdiv_fvar_interpolation_from_uv_smooth(
uv_smooth);
/* Apply subdivision to mesh. */
Subdiv *subdiv = BKE_subdiv_update_from_mesh(nullptr, &subdiv_settings, mesh_in);
/* In case of bad topology, skip to input mesh. */
if (subdiv == nullptr) {
params.set_output("Geometry", std::move(geometry_set));
return;
}
Mesh *mesh_out = BKE_subdiv_to_mesh(subdiv, &mesh_settings, mesh_in);
BKE_mesh_normals_tag_dirty(mesh_out);
MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();
mesh_component.replace(mesh_out);
// BKE_subdiv_stats_print(&subdiv->stats);
BKE_subdiv_free(subdiv);
#endif
params.set_output("Geometry", std::move(geometry_set));
}
} // namespace blender::nodes
void register_node_type_geo_legacy_subdivision_surface()
{
static bNodeType ntype;
geo_node_type_base(
&ntype, GEO_NODE_LEGACY_SUBDIVISION_SURFACE, "Subdivision Surface", NODE_CLASS_GEOMETRY, 0);
ntype.declare = blender::nodes::geo_node_subdivision_surface_declare;
ntype.geometry_node_execute = blender::nodes::geo_node_subdivision_surface_exec;
ntype.draw_buttons = blender::nodes::geo_node_subdivision_surface_layout;
node_type_init(&ntype, blender::nodes::geo_node_subdivision_surface_init);
node_type_size_preset(&ntype, NODE_SIZE_MIDDLE);
node_type_storage(&ntype,
"NodeGeometrySubdivisionSurface",
node_free_standard_storage,
node_copy_standard_storage);
nodeRegisterType(&ntype);
}
|
