diff options
| -rw-r--r-- | release/scripts/startup/nodeitems_builtins.py | 1 | ||||
| -rw-r--r-- | source/blender/blenkernel/BKE_node.h | 1 | ||||
| -rw-r--r-- | source/blender/blenkernel/intern/node.cc | 1 | ||||
| -rw-r--r-- | source/blender/nodes/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | source/blender/nodes/NOD_geometry.h | 1 | ||||
| -rw-r--r-- | source/blender/nodes/NOD_static_types.h | 1 | ||||
| -rw-r--r-- | source/blender/nodes/geometry/nodes/node_geo_curve_reverse.cc | 128 |
7 files changed, 134 insertions, 0 deletions
diff --git a/release/scripts/startup/nodeitems_builtins.py b/release/scripts/startup/nodeitems_builtins.py index 562a676907b..42c0e66aa42 100644 --- a/release/scripts/startup/nodeitems_builtins.py +++ b/release/scripts/startup/nodeitems_builtins.py @@ -506,6 +506,7 @@ geometry_node_categories = [ NodeItem("GeometryNodeMeshToCurve"), NodeItem("GeometryNodeCurveToPoints"), NodeItem("GeometryNodeCurveLength"), + NodeItem("GeometryNodeCurveReverse"), ]), GeometryNodeCategory("GEO_GEOMETRY", "Geometry", items=[ NodeItem("GeometryNodeBoundBox"), diff --git a/source/blender/blenkernel/BKE_node.h b/source/blender/blenkernel/BKE_node.h index 9401e6a9f02..dbb0786af9d 100644 --- a/source/blender/blenkernel/BKE_node.h +++ b/source/blender/blenkernel/BKE_node.h @@ -1435,6 +1435,7 @@ int ntreeTexExecTree(struct bNodeTree *ntree, #define GEO_NODE_SELECT_BY_MATERIAL 1055 #define GEO_NODE_CONVEX_HULL 1056 #define GEO_NODE_CURVE_TO_POINTS 1057 +#define GEO_NODE_CURVE_REVERSE 1058 /** \} */ diff --git a/source/blender/blenkernel/intern/node.cc b/source/blender/blenkernel/intern/node.cc index 06d70869386..c247b808a4a 100644 --- a/source/blender/blenkernel/intern/node.cc +++ b/source/blender/blenkernel/intern/node.cc @@ -5057,6 +5057,7 @@ static void registerGeometryNodes() register_node_type_geo_curve_to_mesh(); register_node_type_geo_curve_to_points(); register_node_type_geo_curve_resample(); + register_node_type_geo_curve_reverse(); register_node_type_geo_delete_geometry(); register_node_type_geo_edge_split(); register_node_type_geo_input_material(); diff --git a/source/blender/nodes/CMakeLists.txt b/source/blender/nodes/CMakeLists.txt index fe705f18fca..9d7c50c99cd 100644 --- a/source/blender/nodes/CMakeLists.txt +++ b/source/blender/nodes/CMakeLists.txt @@ -167,6 +167,7 @@ set(SRC geometry/nodes/node_geo_curve_to_mesh.cc geometry/nodes/node_geo_curve_to_points.cc geometry/nodes/node_geo_curve_resample.cc + geometry/nodes/node_geo_curve_reverse.cc geometry/nodes/node_geo_delete_geometry.cc geometry/nodes/node_geo_edge_split.cc geometry/nodes/node_geo_input_material.cc diff --git a/source/blender/nodes/NOD_geometry.h b/source/blender/nodes/NOD_geometry.h index 1995a42731e..eb3867af155 100644 --- a/source/blender/nodes/NOD_geometry.h +++ b/source/blender/nodes/NOD_geometry.h @@ -55,6 +55,7 @@ void register_node_type_geo_curve_length(void); void register_node_type_geo_curve_to_mesh(void); void register_node_type_geo_curve_to_points(void); void register_node_type_geo_curve_resample(void); +void register_node_type_geo_curve_reverse(void); void register_node_type_geo_delete_geometry(void); void register_node_type_geo_edge_split(void); void register_node_type_geo_input_material(void); diff --git a/source/blender/nodes/NOD_static_types.h b/source/blender/nodes/NOD_static_types.h index edf516b7388..8ae1fab87ff 100644 --- a/source/blender/nodes/NOD_static_types.h +++ b/source/blender/nodes/NOD_static_types.h @@ -293,6 +293,7 @@ DefNode(GeometryNode, GEO_NODE_CONVEX_HULL, 0, "CONVEX_HULL", ConvexHull, "Conve DefNode(GeometryNode, GEO_NODE_CURVE_LENGTH, 0, "CURVE_LENGTH", CurveLength, "Curve Length", "") DefNode(GeometryNode, GEO_NODE_CURVE_RESAMPLE, def_geo_curve_resample, "CURVE_RESAMPLE", CurveResample, "Resample Curve", "") DefNode(GeometryNode, GEO_NODE_CURVE_TO_MESH, 0, "CURVE_TO_MESH", CurveToMesh, "Curve to Mesh", "") +DefNode(GeometryNode, GEO_NODE_CURVE_REVERSE, 0, "CURVE_REVERSE", CurveReverse, "Curve Reverse", "") DefNode(GeometryNode, GEO_NODE_CURVE_TO_POINTS, def_geo_curve_to_points, "CURVE_TO_POINTS", CurveToPoints, "Curve to Points", "") DefNode(GeometryNode, GEO_NODE_DELETE_GEOMETRY, 0, "DELETE_GEOMETRY", DeleteGeometry, "Delete Geometry", "") DefNode(GeometryNode, GEO_NODE_EDGE_SPLIT, 0, "EDGE_SPLIT", EdgeSplit, "Edge Split", "") diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_reverse.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_reverse.cc new file mode 100644 index 00000000000..f268f3f7ff1 --- /dev/null +++ b/source/blender/nodes/geometry/nodes/node_geo_curve_reverse.cc @@ -0,0 +1,128 @@ +/* + * 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" + +static bNodeSocketTemplate geo_node_curve_reverse_in[] = { + {SOCK_GEOMETRY, N_("Curve")}, + {SOCK_STRING, N_("Selection")}, + {-1, ""}, +}; + +static bNodeSocketTemplate geo_node_curve_reverse_out[] = { + {SOCK_GEOMETRY, N_("Curve")}, + {-1, ""}, +}; + +namespace blender::nodes { + +/** + * Reverse the data in a MutableSpan object. + */ +template<typename T> static void reverse_data(MutableSpan<T> r_data) +{ + const int size = r_data.size(); + for (const int i : IndexRange(size / 2)) { + std::swap(r_data[size - 1 - i], r_data[i]); + } +} + +/** + * Reverse and Swap the data between 2 MutableSpans. + */ +template<typename T> static void reverse_data(MutableSpan<T> left, MutableSpan<T> right) +{ + BLI_assert(left.size() == right.size()); + const int size = left.size(); + + for (const int i : IndexRange(size / 2 + size % 2)) { + std::swap(left[i], right[size - 1 - i]); + std::swap(right[i], left[size - 1 - i]); + } +} + +static void geo_node_curve_reverse_exec(GeoNodeExecParams params) +{ + GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve"); + geometry_set = bke::geometry_set_realize_instances(geometry_set); + if (!geometry_set.has_curve()) { + params.set_output("Curve", geometry_set); + return; + } + + /* Retrieve data for write access so we can avoid new allocations for the reversed data. */ + CurveComponent &curve_component = geometry_set.get_component_for_write<CurveComponent>(); + CurveEval &curve = *curve_component.get_for_write(); + MutableSpan<SplinePtr> splines = curve.splines(); + + const std::string selection_name = params.extract_input<std::string>("Selection"); + GVArray_Typed<bool> selection = curve_component.attribute_get_for_read( + selection_name, ATTR_DOMAIN_CURVE, true); + + for (const int i : splines.index_range()) { + if (!selection[i]) { + continue; + } + + reverse_data<float3>(splines[i]->positions()); + reverse_data<float>(splines[i]->radii()); + reverse_data<float>(splines[i]->tilts()); + + splines[i]->attributes.foreach_attribute( + [&](StringRefNull name, const AttributeMetaData &meta_data) { + std::optional<blender::fn::GMutableSpan> output_attribute = + splines[i]->attributes.get_for_write(name); + if (!output_attribute) { + BLI_assert_unreachable(); + return false; + } + attribute_math::convert_to_static_type(meta_data.data_type, [&](auto dummy) { + using T = decltype(dummy); + reverse_data(output_attribute->typed<T>()); + }); + return true; + }, + ATTR_DOMAIN_POINT); + + /* Deal with extra info on derived types. */ + if (BezierSpline *spline = dynamic_cast<BezierSpline *>(splines[i].get())) { + reverse_data<BezierSpline::HandleType>(spline->handle_types_left()); + reverse_data<BezierSpline::HandleType>(spline->handle_types_right()); + reverse_data<float3>(spline->handle_positions_left(), spline->handle_positions_right()); + } + else if (NURBSpline *spline = dynamic_cast<NURBSpline *>(splines[i].get())) { + reverse_data<float>(spline->weights()); + } + /* Nothing to do for poly splines. */ + + splines[i]->mark_cache_invalid(); + } + + params.set_output("Curve", geometry_set); +} + +} // namespace blender::nodes + +void register_node_type_geo_curve_reverse() +{ + static bNodeType ntype; + geo_node_type_base(&ntype, GEO_NODE_CURVE_REVERSE, "Curve Reverse", NODE_CLASS_GEOMETRY, 0); + node_type_socket_templates(&ntype, geo_node_curve_reverse_in, geo_node_curve_reverse_out); + ntype.geometry_node_execute = blender::nodes::geo_node_curve_reverse_exec; + nodeRegisterType(&ntype); +} |