diff options
Diffstat (limited to 'source/blender/geometry/intern/realize_instances.cc')
| -rw-r--r-- | source/blender/geometry/intern/realize_instances.cc | 120 |
1 files changed, 88 insertions, 32 deletions
diff --git a/source/blender/geometry/intern/realize_instances.cc b/source/blender/geometry/intern/realize_instances.cc index 87a610ac0a2..25ff705385c 100644 --- a/source/blender/geometry/intern/realize_instances.cc +++ b/source/blender/geometry/intern/realize_instances.cc @@ -9,6 +9,7 @@ #include "DNA_object_types.h" #include "DNA_pointcloud_types.h" +#include "BLI_devirtualize_parameters.hh" #include "BLI_noise.hh" #include "BLI_task.hh" @@ -102,6 +103,7 @@ struct MeshRealizeInfo { Array<std::optional<GVArraySpan>> attributes; /** Vertex ids stored on the mesh. If there are no ids, this #Span is empty. */ Span<int> stored_vertex_ids; + VArray<int> material_indices; }; struct RealizeMeshTask { @@ -182,6 +184,7 @@ struct AllMeshesInfo { /** Ordered materials on the output mesh. */ VectorSet<Material *> materials; bool create_id_attribute = false; + bool create_material_index_attribute = false; }; struct AllCurvesInfo { @@ -787,7 +790,10 @@ static void execute_realize_pointcloud_tasks(const RealizeInstancesOptions &opti * \{ */ static OrderedAttributes gather_generic_mesh_attributes_to_propagate( - const GeometrySet &in_geometry_set, const RealizeInstancesOptions &options, bool &r_create_id) + const GeometrySet &in_geometry_set, + const RealizeInstancesOptions &options, + bool &r_create_id, + bool &r_create_material_index) { Vector<GeometryComponentType> src_component_types; src_component_types.append(GEO_COMPONENT_TYPE_MESH); @@ -800,10 +806,10 @@ static OrderedAttributes gather_generic_mesh_attributes_to_propagate( src_component_types, GEO_COMPONENT_TYPE_MESH, true, attributes_to_propagate); attributes_to_propagate.remove("position"); attributes_to_propagate.remove("normal"); - attributes_to_propagate.remove("material_index"); attributes_to_propagate.remove("shade_smooth"); attributes_to_propagate.remove("crease"); r_create_id = attributes_to_propagate.pop_try("id").has_value(); + r_create_material_index = attributes_to_propagate.pop_try("material_index").has_value(); OrderedAttributes ordered_attributes; for (const auto item : attributes_to_propagate.items()) { ordered_attributes.ids.add_new(item.key); @@ -833,13 +839,19 @@ static AllMeshesInfo preprocess_meshes(const GeometrySet &geometry_set, { AllMeshesInfo info; info.attributes = gather_generic_mesh_attributes_to_propagate( - geometry_set, options, info.create_id_attribute); + geometry_set, options, info.create_id_attribute, info.create_material_index_attribute); gather_meshes_to_realize(geometry_set, info.order); for (const Mesh *mesh : info.order) { - for (const int slot_index : IndexRange(mesh->totcol)) { - Material *material = mesh->mat[slot_index]; - info.materials.add(material); + if (mesh->totcol == 0) { + /* Add an empty material slot for the default material. */ + info.materials.add(nullptr); + } + else { + for (const int slot_index : IndexRange(mesh->totcol)) { + Material *material = mesh->mat[slot_index]; + info.materials.add(material); + } } } info.realize_info.reinitialize(info.order.size()); @@ -849,11 +861,16 @@ static AllMeshesInfo preprocess_meshes(const GeometrySet &geometry_set, mesh_info.mesh = mesh; /* Create material index mapping. */ - mesh_info.material_index_map.reinitialize(mesh->totcol); - for (const int old_slot_index : IndexRange(mesh->totcol)) { - Material *material = mesh->mat[old_slot_index]; - const int new_slot_index = info.materials.index_of(material); - mesh_info.material_index_map[old_slot_index] = new_slot_index; + mesh_info.material_index_map.reinitialize(std::max<int>(mesh->totcol, 1)); + if (mesh->totcol == 0) { + mesh_info.material_index_map.first() = info.materials.index_of(nullptr); + } + else { + for (const int old_slot_index : IndexRange(mesh->totcol)) { + Material *material = mesh->mat[old_slot_index]; + const int new_slot_index = info.materials.index_of(material); + mesh_info.material_index_map[old_slot_index] = new_slot_index; + } } /* Access attributes. */ @@ -874,6 +891,8 @@ static AllMeshesInfo preprocess_meshes(const GeometrySet &geometry_set, mesh_info.stored_vertex_ids = ids_attribute.varray.get_internal_span().typed<int>(); } } + mesh_info.material_indices = attributes.lookup_or_default<int>( + "material_index", ATTR_DOMAIN_FACE, 0); } return info; } @@ -883,7 +902,8 @@ static void execute_realize_mesh_task(const RealizeInstancesOptions &options, const OrderedAttributes &ordered_attributes, Mesh &dst_mesh, MutableSpan<GSpanAttributeWriter> dst_attribute_writers, - MutableSpan<int> all_dst_vertex_ids) + MutableSpan<int> all_dst_vertex_ids, + MutableSpan<int> all_dst_material_indices) { const MeshRealizeInfo &mesh_info = *task.mesh_info; const Mesh &mesh = *mesh_info.mesh; @@ -893,14 +913,19 @@ static void execute_realize_mesh_task(const RealizeInstancesOptions &options, const Span<MLoop> src_loops{mesh.mloop, mesh.totloop}; const Span<MPoly> src_polys{mesh.mpoly, mesh.totpoly}; - MutableSpan<MVert> dst_verts{dst_mesh.mvert + task.start_indices.vertex, mesh.totvert}; - MutableSpan<MEdge> dst_edges{dst_mesh.medge + task.start_indices.edge, mesh.totedge}; - MutableSpan<MLoop> dst_loops{dst_mesh.mloop + task.start_indices.loop, mesh.totloop}; - MutableSpan<MPoly> dst_polys{dst_mesh.mpoly + task.start_indices.poly, mesh.totpoly}; + const IndexRange dst_vert_range(task.start_indices.vertex, src_verts.size()); + const IndexRange dst_edge_range(task.start_indices.edge, src_edges.size()); + const IndexRange dst_poly_range(task.start_indices.poly, src_polys.size()); + const IndexRange dst_loop_range(task.start_indices.loop, src_loops.size()); + + MutableSpan dst_verts = MutableSpan(dst_mesh.mvert, dst_mesh.totvert).slice(dst_vert_range); + MutableSpan dst_edges = MutableSpan(dst_mesh.medge, dst_mesh.totedge).slice(dst_edge_range); + MutableSpan dst_polys = MutableSpan(dst_mesh.mpoly, dst_mesh.totpoly).slice(dst_poly_range); + MutableSpan dst_loops = MutableSpan(dst_mesh.mloop, dst_mesh.totloop).slice(dst_loop_range); const Span<int> material_index_map = mesh_info.material_index_map; - threading::parallel_for(IndexRange(mesh.totvert), 1024, [&](const IndexRange vert_range) { + threading::parallel_for(src_verts.index_range(), 1024, [&](const IndexRange vert_range) { for (const int i : vert_range) { const MVert &src_vert = src_verts[i]; MVert &dst_vert = dst_verts[i]; @@ -908,7 +933,7 @@ static void execute_realize_mesh_task(const RealizeInstancesOptions &options, copy_v3_v3(dst_vert.co, task.transform * float3(src_vert.co)); } }); - threading::parallel_for(IndexRange(mesh.totedge), 1024, [&](const IndexRange edge_range) { + threading::parallel_for(src_edges.index_range(), 1024, [&](const IndexRange edge_range) { for (const int i : edge_range) { const MEdge &src_edge = src_edges[i]; MEdge &dst_edge = dst_edges[i]; @@ -917,7 +942,7 @@ static void execute_realize_mesh_task(const RealizeInstancesOptions &options, dst_edge.v2 += task.start_indices.vertex; } }); - threading::parallel_for(IndexRange(mesh.totloop), 1024, [&](const IndexRange loop_range) { + threading::parallel_for(src_loops.index_range(), 1024, [&](const IndexRange loop_range) { for (const int i : loop_range) { const MLoop &src_loop = src_loops[i]; MLoop &dst_loop = dst_loops[i]; @@ -926,21 +951,38 @@ static void execute_realize_mesh_task(const RealizeInstancesOptions &options, dst_loop.e += task.start_indices.edge; } }); - threading::parallel_for(IndexRange(mesh.totpoly), 1024, [&](const IndexRange poly_range) { + threading::parallel_for(src_polys.index_range(), 1024, [&](const IndexRange poly_range) { for (const int i : poly_range) { const MPoly &src_poly = src_polys[i]; MPoly &dst_poly = dst_polys[i]; dst_poly = src_poly; dst_poly.loopstart += task.start_indices.loop; - if (src_poly.mat_nr >= 0 && src_poly.mat_nr < mesh.totcol) { - dst_poly.mat_nr = material_index_map[src_poly.mat_nr]; + } + }); + if (!all_dst_material_indices.is_empty()) { + MutableSpan<int> dst_material_indices = all_dst_material_indices.slice(dst_poly_range); + if (mesh.totcol == 0) { + /* The material index map contains the index of the null material in the result. */ + dst_material_indices.fill(material_index_map.first()); + } + else { + if (mesh_info.material_indices.is_single()) { + const int src_index = mesh_info.material_indices.get_internal_single(); + const bool valid = IndexRange(mesh.totcol).contains(src_index); + dst_material_indices.fill(valid ? material_index_map[src_index] : 0); } else { - /* The material index was invalid before. */ - dst_poly.mat_nr = 0; + VArraySpan<int> indices_span(mesh_info.material_indices); + threading::parallel_for(src_polys.index_range(), 1024, [&](const IndexRange poly_range) { + for (const int i : poly_range) { + const int src_index = indices_span[i]; + const bool valid = IndexRange(mesh.totcol).contains(src_index); + dst_material_indices[i] = valid ? material_index_map[src_index] : 0; + } + }); } } - }); + } if (!all_dst_vertex_ids.is_empty()) { create_result_ids(options, @@ -956,13 +998,13 @@ static void execute_realize_mesh_task(const RealizeInstancesOptions &options, [&](const eAttrDomain domain) { switch (domain) { case ATTR_DOMAIN_POINT: - return IndexRange(task.start_indices.vertex, mesh.totvert); + return dst_vert_range; case ATTR_DOMAIN_EDGE: - return IndexRange(task.start_indices.edge, mesh.totedge); - case ATTR_DOMAIN_CORNER: - return IndexRange(task.start_indices.loop, mesh.totloop); + return dst_edge_range; case ATTR_DOMAIN_FACE: - return IndexRange(task.start_indices.poly, mesh.totpoly); + return dst_poly_range; + case ATTR_DOMAIN_CORNER: + return dst_loop_range; default: BLI_assert_unreachable(); return IndexRange(); @@ -1013,6 +1055,12 @@ static void execute_realize_mesh_tasks(const RealizeInstancesOptions &options, if (all_meshes_info.create_id_attribute) { vertex_ids = dst_attributes.lookup_or_add_for_write_only_span<int>("id", ATTR_DOMAIN_POINT); } + /* Prepare material indices. */ + SpanAttributeWriter<int> material_indices; + if (all_meshes_info.create_material_index_attribute) { + material_indices = dst_attributes.lookup_or_add_for_write_only_span<int>("material_index", + ATTR_DOMAIN_FACE); + } /* Prepare generic output attributes. */ Vector<GSpanAttributeWriter> dst_attribute_writers; @@ -1028,8 +1076,13 @@ static void execute_realize_mesh_tasks(const RealizeInstancesOptions &options, threading::parallel_for(tasks.index_range(), 100, [&](const IndexRange task_range) { for (const int task_index : task_range) { const RealizeMeshTask &task = tasks[task_index]; - execute_realize_mesh_task( - options, task, ordered_attributes, *dst_mesh, dst_attribute_writers, vertex_ids.span); + execute_realize_mesh_task(options, + task, + ordered_attributes, + *dst_mesh, + dst_attribute_writers, + vertex_ids.span, + material_indices.span); } }); @@ -1040,6 +1093,9 @@ static void execute_realize_mesh_tasks(const RealizeInstancesOptions &options, if (vertex_ids) { vertex_ids.finish(); } + if (material_indices) { + material_indices.finish(); + } } /** \} */ |