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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 "BKE_spline.hh"
#include "node_geometry_util.hh"
namespace blender::nodes {
static void geo_node_set_spline_resolution_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>(N_("Geometry")).supported_type(GEO_COMPONENT_TYPE_CURVE);
b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().supports_field();
b.add_input<decl::Int>(N_("Resolution")).default_value(12).supports_field();
b.add_output<decl::Geometry>(N_("Geometry"));
}
static void set_resolution_in_component(GeometryComponent &component,
const Field<bool> &selection_field,
const Field<int> &resolution_field)
{
GeometryComponentFieldContext field_context{component, ATTR_DOMAIN_CURVE};
const int domain_size = component.attribute_domain_size(ATTR_DOMAIN_CURVE);
if (domain_size == 0) {
return;
}
fn::FieldEvaluator selection_evaluator{field_context, domain_size};
selection_evaluator.add(selection_field);
selection_evaluator.evaluate();
const IndexMask selection = selection_evaluator.get_evaluated_as_mask(0);
OutputAttribute_Typed<int> resolutions = component.attribute_try_get_for_output_only<int>(
"resolution", ATTR_DOMAIN_CURVE);
fn::FieldEvaluator resolution_evaluator{field_context, &selection};
resolution_evaluator.add_with_destination(resolution_field, resolutions.varray());
resolution_evaluator.evaluate();
resolutions.save();
}
static void geo_node_set_spline_resolution_exec(GeoNodeExecParams params)
{
GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
Field<bool> selection_field = params.extract_input<Field<bool>>("Selection");
Field<int> resolution_field = params.extract_input<Field<int>>("Resolution");
bool only_poly = true;
geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
if (geometry_set.has_curve()) {
if (only_poly) {
for (const SplinePtr &spline : geometry_set.get_curve_for_read()->splines()) {
if (ELEM(spline->type(), Spline::Type::Bezier, Spline::Type::NURBS)) {
only_poly = false;
break;
}
}
}
set_resolution_in_component(geometry_set.get_component_for_write<CurveComponent>(),
selection_field,
resolution_field);
}
});
if (only_poly) {
params.error_message_add(NodeWarningType::Warning,
TIP_("Input geometry does not contain a Bezier or NURB spline"));
}
params.set_output("Geometry", std::move(geometry_set));
}
} // namespace blender::nodes
void register_node_type_geo_set_spline_resolution()
{
static bNodeType ntype;
geo_node_type_base(
&ntype, GEO_NODE_SET_SPLINE_RESOLUTION, "Set Spline Resolution", NODE_CLASS_GEOMETRY, 0);
ntype.geometry_node_execute = blender::nodes::geo_node_set_spline_resolution_exec;
ntype.declare = blender::nodes::geo_node_set_spline_resolution_declare;
nodeRegisterType(&ntype);
}
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