diff options
Diffstat (limited to 'source/blender/nodes/geometry/nodes/node_geo_mesh_topology_face_of_corner.cc')
-rw-r--r-- | source/blender/nodes/geometry/nodes/node_geo_mesh_topology_face_of_corner.cc | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/node_geo_mesh_topology_face_of_corner.cc b/source/blender/nodes/geometry/nodes/node_geo_mesh_topology_face_of_corner.cc new file mode 100644 index 00000000000..d9f944ca11e --- /dev/null +++ b/source/blender/nodes/geometry/nodes/node_geo_mesh_topology_face_of_corner.cc @@ -0,0 +1,121 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "BKE_mesh.h" +#include "BKE_mesh_mapping.h" + +#include "node_geometry_util.hh" + +namespace blender::nodes::node_geo_mesh_topology_face_of_corner_cc { + +static void node_declare(NodeDeclarationBuilder &b) +{ + b.add_input<decl::Int>(N_("Corner Index")) + .implicit_field(implicit_field_inputs::index) + .description( + N_("The corner to retrieve data from. Defaults to the corner from the context")); + b.add_output<decl::Int>(N_("Face Index")) + .dependent_field() + .description(N_("The index of the face the corner is a part of")); + b.add_output<decl::Int>(N_("Index in Face")) + .dependent_field() + .description(N_("The index of the corner starting from the first corner in the face")); +} + +class CornerFaceIndexInput final : public bke::MeshFieldInput { + public: + CornerFaceIndexInput() : bke::MeshFieldInput(CPPType::get<int>(), "Corner Face Index") + { + category_ = Category::Generated; + } + + GVArray get_varray_for_context(const Mesh &mesh, + const eAttrDomain domain, + const IndexMask /*mask*/) const final + { + if (domain != ATTR_DOMAIN_CORNER) { + return {}; + } + return VArray<int>::ForContainer( + bke::mesh_topology::build_loop_to_poly_map(mesh.polys(), mesh.totloop)); + } + + uint64_t hash() const final + { + return 2348712958475728; + } + + bool is_equal_to(const fn::FieldNode &other) const final + { + return dynamic_cast<const CornerFaceIndexInput *>(&other) != nullptr; + } +}; + +class CornerIndexInFaceInput final : public bke::MeshFieldInput { + public: + CornerIndexInFaceInput() : bke::MeshFieldInput(CPPType::get<int>(), "Corner Index In Face") + { + category_ = Category::Generated; + } + + GVArray get_varray_for_context(const Mesh &mesh, + const eAttrDomain domain, + const IndexMask /*mask*/) const final + { + if (domain != ATTR_DOMAIN_CORNER) { + return {}; + } + const Span<MPoly> polys = mesh.polys(); + Array<int> loop_to_poly_map = bke::mesh_topology::build_loop_to_poly_map(polys, mesh.totloop); + return VArray<int>::ForFunc( + mesh.totloop, [polys, loop_to_poly_map = std::move(loop_to_poly_map)](const int corner_i) { + const int poly_i = loop_to_poly_map[corner_i]; + return corner_i - polys[poly_i].loopstart; + }); + } + + uint64_t hash() const final + { + return 97837176448; + } + + bool is_equal_to(const fn::FieldNode &other) const final + { + if (dynamic_cast<const CornerIndexInFaceInput *>(&other)) { + return true; + } + return false; + } +}; + +static void node_geo_exec(GeoNodeExecParams params) +{ + const Field<int> corner_index = params.extract_input<Field<int>>("Corner Index"); + if (params.output_is_required("Face Index")) { + params.set_output("Face Index", + Field<int>(std::make_shared<FieldAtIndexInput>( + corner_index, + Field<int>(std::make_shared<CornerFaceIndexInput>()), + ATTR_DOMAIN_CORNER))); + } + if (params.output_is_required("Index in Face")) { + params.set_output("Index in Face", + Field<int>(std::make_shared<FieldAtIndexInput>( + corner_index, + Field<int>(std::make_shared<CornerIndexInFaceInput>()), + ATTR_DOMAIN_CORNER))); + } +} + +} // namespace blender::nodes::node_geo_mesh_topology_face_of_corner_cc + +void register_node_type_geo_mesh_topology_face_of_corner() +{ + namespace file_ns = blender::nodes::node_geo_mesh_topology_face_of_corner_cc; + + static bNodeType ntype; + geo_node_type_base( + &ntype, GEO_NODE_MESH_TOPOLOGY_FACE_OF_CORNER, "Face of Corner", NODE_CLASS_INPUT); + ntype.geometry_node_execute = file_ns::node_geo_exec; + ntype.declare = file_ns::node_declare; + nodeRegisterType(&ntype); +} |