diff options
author | Jacques Lucke <jacques@blender.org> | 2021-06-08 17:01:54 +0300 |
---|---|---|
committer | Jacques Lucke <jacques@blender.org> | 2021-06-08 17:01:54 +0300 |
commit | 08b0de45f323ee30cea2322dc7d3bc492d6518ec (patch) | |
tree | c0e9f467fe8c568cb6d708e090fc093d5444f618 /source/blender | |
parent | 2246d456aa848f0e6b41ed90ff44869e79cb8def (diff) |
Geometry Nodes: new Select by Material node
This node creates a boolean face attribute that is "true" for
every face that has the given material.
Differential Revision: https://developer.blender.org/D11324
Diffstat (limited to 'source/blender')
-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_select_by_material.cc | 97 |
6 files changed, 102 insertions, 0 deletions
diff --git a/source/blender/blenkernel/BKE_node.h b/source/blender/blenkernel/BKE_node.h index 380e75f0924..16da621a0fa 100644 --- a/source/blender/blenkernel/BKE_node.h +++ b/source/blender/blenkernel/BKE_node.h @@ -1432,6 +1432,7 @@ int ntreeTexExecTree(struct bNodeTree *ntree, #define GEO_NODE_MESH_TO_CURVE 1052 #define GEO_NODE_DELETE_GEOMETRY 1053 #define GEO_NODE_CURVE_LENGTH 1054 +#define GEO_NODE_SELECT_BY_MATERIAL 1055 /** \} */ diff --git a/source/blender/blenkernel/intern/node.cc b/source/blender/blenkernel/intern/node.cc index 2a509fd7df4..10f1f40f390 100644 --- a/source/blender/blenkernel/intern/node.cc +++ b/source/blender/blenkernel/intern/node.cc @@ -5078,6 +5078,7 @@ static void registerGeometryNodes() register_node_type_geo_point_translate(); register_node_type_geo_points_to_volume(); register_node_type_geo_sample_texture(); + register_node_type_geo_select_by_material(); register_node_type_geo_subdivide(); register_node_type_geo_subdivision_surface(); register_node_type_geo_switch(); diff --git a/source/blender/nodes/CMakeLists.txt b/source/blender/nodes/CMakeLists.txt index 8baa891df5c..7aaf28869de 100644 --- a/source/blender/nodes/CMakeLists.txt +++ b/source/blender/nodes/CMakeLists.txt @@ -189,6 +189,7 @@ set(SRC geometry/nodes/node_geo_point_separate.cc geometry/nodes/node_geo_point_translate.cc geometry/nodes/node_geo_points_to_volume.cc + geometry/nodes/node_geo_select_by_material.cc geometry/nodes/node_geo_subdivide.cc geometry/nodes/node_geo_subdivision_surface.cc geometry/nodes/node_geo_switch.cc diff --git a/source/blender/nodes/NOD_geometry.h b/source/blender/nodes/NOD_geometry.h index 3c43b53da5a..df14fcfe5b4 100644 --- a/source/blender/nodes/NOD_geometry.h +++ b/source/blender/nodes/NOD_geometry.h @@ -78,6 +78,7 @@ void register_node_type_geo_point_separate(void); void register_node_type_geo_point_translate(void); void register_node_type_geo_points_to_volume(void); void register_node_type_geo_sample_texture(void); +void register_node_type_geo_select_by_material(void); void register_node_type_geo_subdivide(void); void register_node_type_geo_subdivision_surface(void); void register_node_type_geo_switch(void); diff --git a/source/blender/nodes/NOD_static_types.h b/source/blender/nodes/NOD_static_types.h index 19b671de49d..bfd99a2bb60 100644 --- a/source/blender/nodes/NOD_static_types.h +++ b/source/blender/nodes/NOD_static_types.h @@ -316,6 +316,7 @@ DefNode(GeometryNode, GEO_NODE_POINT_SCALE, def_geo_point_scale, "POINT_SCALE", DefNode(GeometryNode, GEO_NODE_POINT_SEPARATE, 0, "POINT_SEPARATE", PointSeparate, "Point Separate", "") DefNode(GeometryNode, GEO_NODE_POINT_TRANSLATE, def_geo_point_translate, "POINT_TRANSLATE", PointTranslate, "Point Translate", "") DefNode(GeometryNode, GEO_NODE_POINTS_TO_VOLUME, def_geo_points_to_volume, "POINTS_TO_VOLUME", PointsToVolume, "Points to Volume", "") +DefNode(GeometryNode, GEO_NODE_SELECT_BY_MATERIAL, 0, "SELECT_BY_MATERIAL", SelectByMaterial, "Select by Material", "") DefNode(GeometryNode, GEO_NODE_SUBDIVIDE, 0, "SUBDIVIDE", Subdivide, "Subdivide", "") DefNode(GeometryNode, GEO_NODE_SUBDIVISION_SURFACE, 0, "SUBDIVISION_SURFACE", SubdivisionSurface, "Subdivision Surface", "") DefNode(GeometryNode, GEO_NODE_SWITCH, def_geo_switch, "SWITCH", Switch, "Switch", "") diff --git a/source/blender/nodes/geometry/nodes/node_geo_select_by_material.cc b/source/blender/nodes/geometry/nodes/node_geo_select_by_material.cc new file mode 100644 index 00000000000..51be90d316e --- /dev/null +++ b/source/blender/nodes/geometry/nodes/node_geo_select_by_material.cc @@ -0,0 +1,97 @@ +/* + * 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 "node_geometry_util.hh" + +#include "UI_interface.h" +#include "UI_resources.h" + +#include "DNA_mesh_types.h" +#include "DNA_meshdata_types.h" + +#include "BLI_task.hh" + +#include "BKE_material.h" + +static bNodeSocketTemplate geo_node_select_by_material_in[] = { + {SOCK_GEOMETRY, N_("Geometry")}, + {SOCK_MATERIAL, N_("Material")}, + {SOCK_STRING, N_("Selection")}, + {-1, ""}, +}; + +static bNodeSocketTemplate geo_node_select_by_material_out[] = { + {SOCK_GEOMETRY, N_("Geometry")}, + {-1, ""}, +}; + +namespace blender::nodes { + +static void select_mesh_by_material(const Mesh &mesh, + const Material *material, + const MutableSpan<bool> r_selection) +{ + BLI_assert(mesh.totpoly == r_selection.size()); + Vector<int> material_indices; + for (const int i : IndexRange(mesh.totcol)) { + if (mesh.mat[i] == material) { + material_indices.append(i); + } + } + parallel_for(r_selection.index_range(), 1024, [&](IndexRange range) { + for (const int i : range) { + r_selection[i] = material_indices.contains(mesh.mpoly[i].mat_nr); + } + }); +} + +static void geo_node_select_by_material_exec(GeoNodeExecParams params) +{ + Material *material = params.extract_input<Material *>("Material"); + const std::string selection_name = params.extract_input<std::string>("Selection"); + + GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry"); + geometry_set = geometry_set_realize_instances(geometry_set); + + if (geometry_set.has<MeshComponent>()) { + MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>(); + const Mesh *mesh = mesh_component.get_for_read(); + if (mesh != nullptr) { + OutputAttribute_Typed<bool> selection = + mesh_component.attribute_try_get_for_output_only<bool>(selection_name, ATTR_DOMAIN_FACE); + if (selection) { + select_mesh_by_material(*mesh, material, selection.as_span()); + selection.save(); + } + } + } + + params.set_output("Geometry", std::move(geometry_set)); +} + +} // namespace blender::nodes + +void register_node_type_geo_select_by_material() +{ + static bNodeType ntype; + + geo_node_type_base( + &ntype, GEO_NODE_SELECT_BY_MATERIAL, "Select by Material", NODE_CLASS_GEOMETRY, 0); + node_type_socket_templates( + &ntype, geo_node_select_by_material_in, geo_node_select_by_material_out); + ntype.geometry_node_execute = blender::nodes::geo_node_select_by_material_exec; + nodeRegisterType(&ntype); +} |