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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 "DEG_depsgraph_query.h"
#include "BLI_task.hh"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_set_position_cc {
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>(N_("Geometry"));
b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().supports_field();
b.add_input<decl::Vector>(N_("Position")).implicit_field();
b.add_input<decl::Vector>(N_("Offset")).supports_field().subtype(PROP_TRANSLATION);
b.add_output<decl::Geometry>(N_("Geometry"));
}
static void set_computed_position_and_offset(GeometryComponent &component,
const VArray<float3> &in_positions,
const VArray<float3> &in_offsets,
const AttributeDomain domain,
const IndexMask selection)
{
OutputAttribute_Typed<float3> positions = component.attribute_try_get_for_output<float3>(
"position", domain, {0, 0, 0});
const int grain_size = 10000;
switch (component.type()) {
case GEO_COMPONENT_TYPE_MESH: {
Mesh *mesh = static_cast<MeshComponent &>(component).get_for_write();
MutableSpan<MVert> mverts{mesh->mvert, mesh->totvert};
if (in_positions.is_same(positions.varray())) {
devirtualize_varray(in_offsets, [&](const auto in_offsets) {
threading::parallel_for(
selection.index_range(), grain_size, [&](const IndexRange range) {
for (const int i : selection.slice(range)) {
const float3 offset = in_offsets[i];
add_v3_v3(mverts[i].co, offset);
}
});
});
}
else {
devirtualize_varray2(
in_positions, in_offsets, [&](const auto in_positions, const auto in_offsets) {
threading::parallel_for(
selection.index_range(), grain_size, [&](const IndexRange range) {
for (const int i : selection.slice(range)) {
const float3 new_position = in_positions[i] + in_offsets[i];
copy_v3_v3(mverts[i].co, new_position);
}
});
});
}
break;
}
default: {
MutableSpan<float3> out_positions_span = positions.as_span();
if (in_positions.is_same(positions.varray())) {
devirtualize_varray(in_offsets, [&](const auto in_offsets) {
threading::parallel_for(
selection.index_range(), grain_size, [&](const IndexRange range) {
for (const int i : selection.slice(range)) {
out_positions_span[i] += in_offsets[i];
}
});
});
}
else {
devirtualize_varray2(
in_positions, in_offsets, [&](const auto in_positions, const auto in_offsets) {
threading::parallel_for(
selection.index_range(), grain_size, [&](const IndexRange range) {
for (const int i : selection.slice(range)) {
out_positions_span[i] = in_positions[i] + in_offsets[i];
}
});
});
}
break;
}
}
positions.save();
}
static void set_position_in_component(GeometryComponent &component,
const Field<bool> &selection_field,
const Field<float3> &position_field,
const Field<float3> &offset_field)
{
AttributeDomain domain = component.type() == GEO_COMPONENT_TYPE_INSTANCES ?
ATTR_DOMAIN_INSTANCE :
ATTR_DOMAIN_POINT;
GeometryComponentFieldContext field_context{component, domain};
const int domain_size = component.attribute_domain_size(domain);
if (domain_size == 0) {
return;
}
fn::FieldEvaluator evaluator{field_context, domain_size};
evaluator.set_selection(selection_field);
evaluator.add(position_field);
evaluator.add(offset_field);
evaluator.evaluate();
const IndexMask selection = evaluator.get_evaluated_selection_as_mask();
const VArray<float3> &positions_input = evaluator.get_evaluated<float3>(0);
const VArray<float3> &offsets_input = evaluator.get_evaluated<float3>(1);
set_computed_position_and_offset(component, positions_input, offsets_input, domain, selection);
}
static void node_geo_exec(GeoNodeExecParams params)
{
GeometrySet geometry = params.extract_input<GeometrySet>("Geometry");
Field<bool> selection_field = params.extract_input<Field<bool>>("Selection");
Field<float3> offset_field = params.extract_input<Field<float3>>("Offset");
Field<float3> position_field = params.extract_input<Field<float3>>("Position");
for (const GeometryComponentType type : {GEO_COMPONENT_TYPE_MESH,
GEO_COMPONENT_TYPE_POINT_CLOUD,
GEO_COMPONENT_TYPE_CURVE,
GEO_COMPONENT_TYPE_INSTANCES}) {
if (geometry.has(type)) {
set_position_in_component(
geometry.get_component_for_write(type), selection_field, position_field, offset_field);
}
}
params.set_output("Geometry", std::move(geometry));
}
} // namespace blender::nodes::node_geo_set_position_cc
void register_node_type_geo_set_position()
{
namespace file_ns = blender::nodes::node_geo_set_position_cc;
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_SET_POSITION, "Set Position", NODE_CLASS_GEOMETRY);
ntype.geometry_node_execute = file_ns::node_geo_exec;
ntype.declare = file_ns::node_declare;
nodeRegisterType(&ntype);
}
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