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
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/*
* 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 "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
static bNodeSocketTemplate geo_node_attribute_convert_in[] = {
{SOCK_GEOMETRY, N_("Geometry")},
{SOCK_STRING, N_("Attribute")},
{SOCK_STRING, N_("Result")},
{-1, ""},
};
static bNodeSocketTemplate geo_node_attribute_convert_out[] = {
{SOCK_GEOMETRY, N_("Geometry")},
{-1, ""},
};
static void geo_node_attribute_convert_layout(uiLayout *layout,
bContext *UNUSED(C),
PointerRNA *ptr)
{
uiLayoutSetPropSep(layout, true);
uiLayoutSetPropDecorate(layout, false);
uiItemR(layout, ptr, "domain", 0, nullptr, ICON_NONE);
uiItemR(layout, ptr, "data_type", 0, IFACE_("Type"), ICON_NONE);
}
static void geo_node_attribute_convert_init(bNodeTree *UNUSED(tree), bNode *node)
{
NodeAttributeConvert *data = (NodeAttributeConvert *)MEM_callocN(sizeof(NodeAttributeConvert),
__func__);
data->data_type = CD_AUTO_FROM_NAME;
data->domain = ATTR_DOMAIN_AUTO;
node->storage = data;
}
namespace blender::nodes {
static AttributeMetaData get_result_domain_and_type(const GeometryComponent &component,
const StringRef source_name,
const StringRef result_name)
{
std::optional<AttributeMetaData> result_info = component.attribute_get_meta_data(result_name);
if (result_info) {
return *result_info;
}
std::optional<AttributeMetaData> source_info = component.attribute_get_meta_data(source_name);
if (source_info) {
return *source_info;
}
/* The node won't do anything in this case, but we still have to return a value. */
return AttributeMetaData{ATTR_DOMAIN_POINT, CD_PROP_BOOL};
}
static bool conversion_can_be_skipped(const GeometryComponent &component,
const StringRef source_name,
const StringRef result_name,
const AttributeDomain result_domain,
const CustomDataType result_type)
{
if (source_name != result_name) {
return false;
}
std::optional<AttributeMetaData> info = component.attribute_get_meta_data(result_name);
if (!info) {
return false;
}
if (info->domain != result_domain) {
return false;
}
if (info->data_type != result_type) {
return false;
}
return true;
}
static void attribute_convert_calc(GeometryComponent &component,
const GeoNodeExecParams ¶ms,
const StringRef source_name,
const StringRef result_name,
const CustomDataType data_type,
const AttributeDomain domain)
{
const AttributeMetaData auto_info = get_result_domain_and_type(
component, source_name, result_name);
const AttributeDomain result_domain = (domain == ATTR_DOMAIN_AUTO) ? auto_info.domain : domain;
const CustomDataType result_type = (data_type == CD_AUTO_FROM_NAME) ? auto_info.data_type :
data_type;
if (conversion_can_be_skipped(component, source_name, result_name, result_domain, result_type)) {
return;
}
GVArrayPtr source_attribute = component.attribute_try_get_for_read(
source_name, result_domain, result_type);
if (!source_attribute) {
params.error_message_add(NodeWarningType::Error,
TIP_("No attribute with name \"") + source_name + "\"");
return;
}
OutputAttribute result_attribute = component.attribute_try_get_for_output_only(
result_name, result_domain, result_type);
if (!result_attribute) {
return;
}
GVArray_GSpan source_span{*source_attribute};
GMutableSpan result_span = result_attribute.as_span();
BLI_assert(source_span.size() == result_span.size());
const CPPType *cpp_type = bke::custom_data_type_to_cpp_type(result_type);
BLI_assert(cpp_type != nullptr);
cpp_type->copy_to_initialized_n(source_span.data(), result_span.data(), result_span.size());
result_attribute.save();
}
static void geo_node_attribute_convert_exec(GeoNodeExecParams params)
{
GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
geometry_set = geometry_set_realize_instances(geometry_set);
const std::string result_name = params.extract_input<std::string>("Result");
const std::string source_name = params.extract_input<std::string>("Attribute");
const NodeAttributeConvert &node_storage = *(const NodeAttributeConvert *)params.node().storage;
const CustomDataType data_type = static_cast<CustomDataType>(node_storage.data_type);
const AttributeDomain domain = static_cast<AttributeDomain>(node_storage.domain);
if (result_name.empty()) {
params.set_output("Geometry", geometry_set);
return;
}
if (geometry_set.has<MeshComponent>()) {
attribute_convert_calc(geometry_set.get_component_for_write<MeshComponent>(),
params,
source_name,
result_name,
data_type,
domain);
}
if (geometry_set.has<PointCloudComponent>()) {
attribute_convert_calc(geometry_set.get_component_for_write<PointCloudComponent>(),
params,
source_name,
result_name,
data_type,
domain);
}
if (geometry_set.has<CurveComponent>()) {
attribute_convert_calc(geometry_set.get_component_for_write<CurveComponent>(),
params,
source_name,
result_name,
data_type,
domain);
}
params.set_output("Geometry", geometry_set);
}
} // namespace blender::nodes
void register_node_type_geo_attribute_convert()
{
static bNodeType ntype;
geo_node_type_base(
&ntype, GEO_NODE_ATTRIBUTE_CONVERT, "Attribute Convert", NODE_CLASS_ATTRIBUTE, 0);
node_type_socket_templates(
&ntype, geo_node_attribute_convert_in, geo_node_attribute_convert_out);
ntype.geometry_node_execute = blender::nodes::geo_node_attribute_convert_exec;
ntype.draw_buttons = geo_node_attribute_convert_layout;
node_type_init(&ntype, geo_node_attribute_convert_init);
node_type_storage(
&ntype, "NodeAttributeConvert", node_free_standard_storage, node_copy_standard_storage);
nodeRegisterType(&ntype);
}
|