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/*
* 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 "BKE_attribute_math.hh"
#include "node_geometry_util.hh"
namespace blender::nodes {
static void geo_node_attribute_capture_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>("Geometry");
b.add_input<decl::Vector>("Value");
b.add_input<decl::Float>("Value", "Value_001");
b.add_input<decl::Color>("Value", "Value_002");
b.add_input<decl::Bool>("Value", "Value_003");
b.add_input<decl::Int>("Value", "Value_004");
b.add_output<decl::Geometry>("Geometry");
b.add_output<decl::Vector>("Attribute");
b.add_output<decl::Float>("Attribute", "Attribute_001");
b.add_output<decl::Color>("Attribute", "Attribute_002");
b.add_output<decl::Bool>("Attribute", "Attribute_003");
b.add_output<decl::Int>("Attribute", "Attribute_004");
}
static void geo_node_attribute_capture_layout(uiLayout *layout,
bContext *UNUSED(C),
PointerRNA *ptr)
{
uiLayoutSetPropSep(layout, true);
uiLayoutSetPropDecorate(layout, false);
uiItemR(layout, ptr, "domain", 0, "", ICON_NONE);
uiItemR(layout, ptr, "data_type", 0, "", ICON_NONE);
}
static void geo_node_attribute_capture_init(bNodeTree *UNUSED(tree), bNode *node)
{
NodeGeometryAttributeCapture *data = (NodeGeometryAttributeCapture *)MEM_callocN(
sizeof(NodeGeometryAttributeCapture), __func__);
data->data_type = CD_PROP_FLOAT;
data->domain = ATTR_DOMAIN_POINT;
node->storage = data;
}
static void geo_node_attribute_capture_update(bNodeTree *UNUSED(ntree), bNode *node)
{
const NodeGeometryAttributeCapture &storage = *(const NodeGeometryAttributeCapture *)
node->storage;
const CustomDataType data_type = static_cast<CustomDataType>(storage.data_type);
bNodeSocket *socket_value_geometry = (bNodeSocket *)node->inputs.first;
bNodeSocket *socket_value_vector = socket_value_geometry->next;
bNodeSocket *socket_value_float = socket_value_vector->next;
bNodeSocket *socket_value_color4f = socket_value_float->next;
bNodeSocket *socket_value_boolean = socket_value_color4f->next;
bNodeSocket *socket_value_int32 = socket_value_boolean->next;
nodeSetSocketAvailability(socket_value_vector, data_type == CD_PROP_FLOAT3);
nodeSetSocketAvailability(socket_value_float, data_type == CD_PROP_FLOAT);
nodeSetSocketAvailability(socket_value_color4f, data_type == CD_PROP_COLOR);
nodeSetSocketAvailability(socket_value_boolean, data_type == CD_PROP_BOOL);
nodeSetSocketAvailability(socket_value_int32, data_type == CD_PROP_INT32);
bNodeSocket *out_socket_value_geometry = (bNodeSocket *)node->outputs.first;
bNodeSocket *out_socket_value_vector = out_socket_value_geometry->next;
bNodeSocket *out_socket_value_float = out_socket_value_vector->next;
bNodeSocket *out_socket_value_color4f = out_socket_value_float->next;
bNodeSocket *out_socket_value_boolean = out_socket_value_color4f->next;
bNodeSocket *out_socket_value_int32 = out_socket_value_boolean->next;
nodeSetSocketAvailability(out_socket_value_vector, data_type == CD_PROP_FLOAT3);
nodeSetSocketAvailability(out_socket_value_float, data_type == CD_PROP_FLOAT);
nodeSetSocketAvailability(out_socket_value_color4f, data_type == CD_PROP_COLOR);
nodeSetSocketAvailability(out_socket_value_boolean, data_type == CD_PROP_BOOL);
nodeSetSocketAvailability(out_socket_value_int32, data_type == CD_PROP_INT32);
}
static void try_capture_field_on_geometry(GeometryComponent &component,
const AttributeIDRef &attribute_id,
const AttributeDomain domain,
const GField &field)
{
GeometryComponentFieldContext field_context{component, domain};
const int domain_size = component.attribute_domain_size(domain);
const IndexMask mask{IndexMask(domain_size)};
const CustomDataType data_type = bke::cpp_type_to_custom_data_type(field.cpp_type());
OutputAttribute output_attribute = component.attribute_try_get_for_output_only(
attribute_id, domain, data_type);
fn::FieldEvaluator evaluator{field_context, &mask};
evaluator.add_with_destination(field, output_attribute.varray());
evaluator.evaluate();
output_attribute.save();
}
static void geo_node_attribute_capture_exec(GeoNodeExecParams params)
{
GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
geometry_set = bke::geometry_set_realize_instances(geometry_set);
const bNode &node = params.node();
const NodeGeometryAttributeCapture &storage = *(const NodeGeometryAttributeCapture *)
node.storage;
const CustomDataType data_type = static_cast<CustomDataType>(storage.data_type);
const AttributeDomain domain = static_cast<AttributeDomain>(storage.domain);
GField field;
switch (data_type) {
case CD_PROP_FLOAT:
field = params.get_input<Field<float>>("Value_001");
break;
case CD_PROP_FLOAT3:
field = params.get_input<Field<float3>>("Value");
break;
case CD_PROP_COLOR:
field = params.get_input<Field<ColorGeometry4f>>("Value_002");
break;
case CD_PROP_BOOL:
field = params.get_input<Field<bool>>("Value_003");
break;
case CD_PROP_INT32:
field = params.get_input<Field<int>>("Value_004");
break;
default:
break;
}
WeakAnonymousAttributeID anonymous_id{"Attribute Capture"};
const CPPType &type = field.cpp_type();
static const Array<GeometryComponentType> types = {
GEO_COMPONENT_TYPE_MESH, GEO_COMPONENT_TYPE_POINT_CLOUD, GEO_COMPONENT_TYPE_CURVE};
for (const GeometryComponentType type : types) {
if (geometry_set.has(type)) {
GeometryComponent &component = geometry_set.get_component_for_write(type);
try_capture_field_on_geometry(component, anonymous_id.get(), domain, field);
}
}
GField output_field{
std::make_shared<bke::AnonymousAttributeFieldInput>(std::move(anonymous_id), type)};
switch (data_type) {
case CD_PROP_FLOAT: {
params.set_output("Attribute_001", Field<float>(output_field));
break;
}
case CD_PROP_FLOAT3: {
params.set_output("Attribute", Field<float3>(output_field));
break;
}
case CD_PROP_COLOR: {
params.set_output("Attribute_002", Field<ColorGeometry4f>(output_field));
break;
}
case CD_PROP_BOOL: {
params.set_output("Attribute_003", Field<bool>(output_field));
break;
}
case CD_PROP_INT32: {
params.set_output("Attribute_004", Field<int>(output_field));
break;
}
default:
break;
}
params.set_output("Geometry", geometry_set);
}
} // namespace blender::nodes
void register_node_type_geo_attribute_capture()
{
static bNodeType ntype;
geo_node_type_base(
&ntype, GEO_NODE_ATTRIBUTE_CAPTURE, "Attribute Capture", NODE_CLASS_ATTRIBUTE, 0);
node_type_storage(&ntype,
"NodeGeometryAttributeCapture",
node_free_standard_storage,
node_copy_standard_storage);
node_type_init(&ntype, blender::nodes::geo_node_attribute_capture_init);
node_type_update(&ntype, blender::nodes::geo_node_attribute_capture_update);
ntype.declare = blender::nodes::geo_node_attribute_capture_declare;
ntype.geometry_node_execute = blender::nodes::geo_node_attribute_capture_exec;
ntype.draw_buttons = blender::nodes::geo_node_attribute_capture_layout;
nodeRegisterType(&ntype);
}
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