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Differential D16964 Diff 59285 source/blender/nodes/geometry/nodes/node_geo_set_curve_normal.cc

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source/blender/nodes/geometry/nodes/node_geo_set_curve_normal.cc

/* SPDX-License-Identifier: GPL-2.0-or-later */ /* SPDX-License-Identifier: GPL-2.0-or-later */
#include "BKE_curves.hh" #include "BKE_curves.hh"
#include "UI_interface.h" #include "UI_interface.h"
#include "UI_resources.h" #include "UI_resources.h"
#include "node_geometry_util.hh" #include "node_geometry_util.hh"
namespace blender::nodes::node_geo_set_curve_normal_cc { namespace blender::nodes::node_geo_set_curve_normal_cc {
static void node_declare(NodeDeclarationBuilder &b) static void node_declare(NodeDeclarationBuilder &b)
{ {
b.add_input<decl::Geometry>(N_("Curve")).supported_type(GEO_COMPONENT_TYPE_CURVE); b.add_input<decl::Geometry>(N_("Curve")).supported_type(GEO_COMPONENT_TYPE_CURVE);
b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().field_on_all(); b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().field_on_all();
b.add_input<decl::Float>(N_("Weight"))
.default_value(0.8f)
.min(0.0f)
.max(1.0f)
.description(
"With a larger weight, the normals are more aligned with the curvature vector, but "
"might be less stable when animated. Cross-sections with smaller aspect ratios should "
"have larger weights.");
b.add_output<decl::Geometry>(N_("Curve")).propagate_all(); b.add_output<decl::Geometry>(N_("Curve")).propagate_all();
} }
static void node_layout(uiLayout *layout, bContext * /*C*/, PointerRNA *ptr) static void node_layout(uiLayout *layout, bContext * /*C*/, PointerRNA *ptr)
{ {
uiItemR(layout, ptr, "mode", 0, "", ICON_NONE); uiItemR(layout, ptr, "mode", 0, "", ICON_NONE);
} }
static void node_init(bNodeTree * /*tree*/, bNode *node) static void node_init(bNodeTree * /*tree*/, bNode *node)
{ {
node->custom1 = NORMAL_MODE_MINIMUM_TWIST; node->custom1 = NORMAL_MODE_MINIMUM_TWIST;
} }
static void set_normal_mode(bke::CurvesGeometry &curves, static void node_update(bNodeTree *ntree, bNode *node)
{
bNodeSocket *weight_socket = static_cast<bNodeSocket *>(node->inputs.first)->next->next;
nodeSetSocketAvailability(ntree, weight_socket, node->custom1 == NORMAL_MODE_CURVATURE_VECTOR);
}
static void set_normal_mode_and_weight(bke::CurvesGeometry &curves,
const NormalMode mode, const NormalMode mode,
const Field<bool> &selection_field) const Field<bool> &selection_field,
const Field<float> &weight_field)
{ {
bke::CurvesFieldContext field_context{curves, ATTR_DOMAIN_CURVE}; bke::CurvesFieldContext field_context{curves, ATTR_DOMAIN_CURVE};
fn::FieldEvaluator evaluator{field_context, curves.curves_num()}; fn::FieldEvaluator evaluator{field_context, curves.curves_num()};
evaluator.set_selection(selection_field); evaluator.set_selection(selection_field);
if (mode == NORMAL_MODE_CURVATURE_VECTOR) {
evaluator.add_with_destination(weight_field, curves.curvature_vector_weight_for_write());
}
evaluator.evaluate(); evaluator.evaluate();
const IndexMask selection = evaluator.get_evaluated_selection_as_mask(); const IndexMask selection = evaluator.get_evaluated_selection_as_mask();
curves.normal_mode_for_write().fill_indices(selection, mode); curves.normal_mode_for_write().fill_indices(selection, mode);
curves.tag_normals_changed(); curves.tag_normals_changed();
} }
static void node_geo_exec(GeoNodeExecParams params) static void node_geo_exec(GeoNodeExecParams params)
{ {
const NormalMode mode = static_cast<NormalMode>(params.node().custom1); const NormalMode mode = static_cast<NormalMode>(params.node().custom1);
GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve"); GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve");
Field<bool> selection_field = params.extract_input<Field<bool>>("Selection"); Field<bool> selection_field = params.extract_input<Field<bool>>("Selection");
Field<float> weight_field;
if (mode == NORMAL_MODE_CURVATURE_VECTOR) {
weight_field = params.extract_input<Field<float>>("Weight");
}
geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) { geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
if (Curves *curves_id = geometry_set.get_curves_for_write()) { if (Curves *curves_id = geometry_set.get_curves_for_write()) {
bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry); bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry);
set_normal_mode(curves, mode, selection_field); set_normal_mode_and_weight(curves, mode, selection_field, weight_field);
} }
}); });
params.set_output("Curve", std::move(geometry_set)); params.set_output("Curve", std::move(geometry_set));
} }
} // namespace blender::nodes::node_geo_set_curve_normal_cc } // namespace blender::nodes::node_geo_set_curve_normal_cc
void register_node_type_geo_set_curve_normal() void register_node_type_geo_set_curve_normal()
{ {
namespace file_ns = blender::nodes::node_geo_set_curve_normal_cc; namespace file_ns = blender::nodes::node_geo_set_curve_normal_cc;
static bNodeType ntype; static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_SET_CURVE_NORMAL, "Set Curve Normal", NODE_CLASS_GEOMETRY); geo_node_type_base(&ntype, GEO_NODE_SET_CURVE_NORMAL, "Set Curve Normal", NODE_CLASS_GEOMETRY);
ntype.declare = file_ns::node_declare; ntype.declare = file_ns::node_declare;
ntype.geometry_node_execute = file_ns::node_geo_exec; ntype.geometry_node_execute = file_ns::node_geo_exec;
ntype.initfunc = file_ns::node_init; ntype.initfunc = file_ns::node_init;
ntype.updatefunc = file_ns::node_update;
ntype.draw_buttons = file_ns::node_layout; ntype.draw_buttons = file_ns::node_layout;
nodeRegisterType(&ntype); nodeRegisterType(&ntype);
} }