e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "DNA_mesh_types.h"
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#include "BLI_task.hh"
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#include "BKE_attribute.hh"
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#include "BKE_attribute_math.hh"
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#include "BKE_mesh.hh"
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namespace blender::bke {
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template<typename T>
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static void flip_corner_data(const OffsetIndices<int> faces,
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const IndexMask &face_selection,
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MutableSpan<T> data)
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{
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face_selection.foreach_index(GrainSize(1024),
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[&](const int i) { data.slice(faces[i].drop_front(1)).reverse(); });
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}
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template<typename T>
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static void flip_custom_data_type(const OffsetIndices<int> faces,
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CustomData &loop_data,
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const IndexMask &face_selection,
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const eCustomDataType data_type)
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{
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BLI_assert(sizeof(T) == CustomData_sizeof(data_type));
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for (const int i : IndexRange(CustomData_number_of_layers(&loop_data, data_type))) {
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T *data = static_cast<T *>(
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CustomData_get_layer_n_for_write(&loop_data, data_type, i, faces.total_size()));
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flip_corner_data(faces, face_selection, MutableSpan(data, faces.total_size()));
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}
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}
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void mesh_flip_faces(Mesh &mesh, const IndexMask &selection)
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{
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if (mesh.faces_num == 0 || selection.is_empty()) {
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return;
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}
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const OffsetIndices faces = mesh.faces();
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MutableSpan<int> corner_verts = mesh.corner_verts_for_write();
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MutableSpan<int> corner_edges = mesh.corner_edges_for_write();
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selection.foreach_index(GrainSize(1024), [&](const int i) {
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const IndexRange face = faces[i];
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for (const int j : IndexRange(face.size() / 2)) {
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const int a = face[j + 1];
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const int b = face.last(j);
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std::swap(corner_verts[a], corner_verts[b]);
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std::swap(corner_edges[a - 1], corner_edges[b]);
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}
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});
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flip_custom_data_type<float4x4>(faces, mesh.loop_data, selection, CD_TANGENT);
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flip_custom_data_type<float4>(faces, mesh.loop_data, selection, CD_MLOOPTANGENT);
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flip_custom_data_type<short2>(faces, mesh.loop_data, selection, CD_CUSTOMLOOPNORMAL);
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flip_custom_data_type<float>(faces, mesh.loop_data, selection, CD_PAINT_MASK);
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flip_custom_data_type<GridPaintMask>(faces, mesh.loop_data, selection, CD_GRID_PAINT_MASK);
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flip_custom_data_type<OrigSpaceLoop>(faces, mesh.loop_data, selection, CD_ORIGSPACE_MLOOP);
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flip_custom_data_type<MDisps>(faces, mesh.loop_data, selection, CD_MDISPS);
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if (MDisps *mdisp = static_cast<MDisps *>(
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CustomData_get_layer_for_write(&mesh.loop_data, CD_MDISPS, mesh.totloop)))
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{
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selection.foreach_index(GrainSize(512), [&](const int i) {
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for (const int corner : faces[i]) {
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BKE_mesh_mdisp_flip(&mdisp[corner], true);
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}
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});
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}
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bke::MutableAttributeAccessor attributes = mesh.attributes_for_write();
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attributes.for_all(
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[&](const bke::AttributeIDRef &attribute_id, const bke::AttributeMetaData &meta_data) {
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if (meta_data.data_type == CD_PROP_STRING) {
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return true;
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}
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if (meta_data.domain != ATTR_DOMAIN_CORNER) {
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return true;
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}
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if (ELEM(attribute_id.name(), ".corner_vert", ".corner_edge")) {
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return true;
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}
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bke::GSpanAttributeWriter attribute = attributes.lookup_for_write_span(attribute_id);
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bke::attribute_math::convert_to_static_type(meta_data.data_type, [&](auto dummy) {
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using T = decltype(dummy);
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flip_corner_data(faces, selection, attribute.span.typed<T>());
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});
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attribute.finish();
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return true;
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});
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BKE_mesh_tag_face_winding_changed(&mesh);
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}
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} // namespace blender::bke
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