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.
127 lines
3.3 KiB
C++
127 lines
3.3 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
*
|
|
* Manage edit mesh cache: #EditMeshData
|
|
*/
|
|
|
|
#include "MEM_guardedalloc.h"
|
|
|
|
#include "BLI_bounds.hh"
|
|
#include "BLI_math_vector.h"
|
|
#include "BLI_span.hh"
|
|
|
|
#include "DNA_mesh_types.h"
|
|
|
|
#include "BKE_editmesh.h"
|
|
#include "BKE_editmesh_cache.hh" /* own include */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Ensure Data (derived from coords)
|
|
* \{ */
|
|
|
|
void BKE_editmesh_cache_ensure_face_normals(BMEditMesh *em, blender::bke::EditMeshData *emd)
|
|
{
|
|
if (emd->vertexCos.is_empty() || !emd->faceNos.is_empty()) {
|
|
return;
|
|
}
|
|
BMesh *bm = em->bm;
|
|
|
|
emd->faceNos.reinitialize(bm->totface);
|
|
|
|
BM_mesh_elem_index_ensure(bm, BM_VERT);
|
|
BMFace *efa;
|
|
BMIter fiter;
|
|
int i;
|
|
BM_ITER_MESH_INDEX (efa, &fiter, bm, BM_FACES_OF_MESH, i) {
|
|
BM_elem_index_set(efa, i); /* set_inline */
|
|
BM_face_calc_normal_vcos(
|
|
bm, efa, emd->faceNos[i], reinterpret_cast<const float(*)[3]>(emd->vertexCos.data()));
|
|
}
|
|
bm->elem_index_dirty &= ~BM_FACE;
|
|
}
|
|
|
|
void BKE_editmesh_cache_ensure_vert_normals(BMEditMesh *em, blender::bke::EditMeshData *emd)
|
|
{
|
|
if (emd->vertexCos.is_empty() || !emd->vertexNos.is_empty()) {
|
|
return;
|
|
}
|
|
BMesh *bm = em->bm;
|
|
|
|
/* Calculate vertex normals from face normals. */
|
|
BKE_editmesh_cache_ensure_face_normals(em, emd);
|
|
|
|
emd->vertexNos.reinitialize(bm->totvert);
|
|
|
|
BM_mesh_elem_index_ensure(bm, BM_FACE);
|
|
BM_verts_calc_normal_vcos(bm,
|
|
reinterpret_cast<const float(*)[3]>(emd->faceNos.data()),
|
|
reinterpret_cast<const float(*)[3]>(emd->vertexCos.data()),
|
|
reinterpret_cast<float(*)[3]>(emd->vertexNos.data()));
|
|
}
|
|
|
|
void BKE_editmesh_cache_ensure_face_centers(BMEditMesh *em, blender::bke::EditMeshData *emd)
|
|
{
|
|
if (!emd->faceCos.is_empty()) {
|
|
return;
|
|
}
|
|
BMesh *bm = em->bm;
|
|
|
|
emd->faceCos.reinitialize(bm->totface);
|
|
|
|
BMFace *efa;
|
|
BMIter fiter;
|
|
int i;
|
|
if (emd->vertexCos.is_empty()) {
|
|
BM_ITER_MESH_INDEX (efa, &fiter, bm, BM_FACES_OF_MESH, i) {
|
|
BM_face_calc_center_median(efa, emd->faceCos[i]);
|
|
}
|
|
}
|
|
else {
|
|
BM_mesh_elem_index_ensure(bm, BM_VERT);
|
|
BM_ITER_MESH_INDEX (efa, &fiter, bm, BM_FACES_OF_MESH, i) {
|
|
BM_face_calc_center_median_vcos(
|
|
bm, efa, emd->faceCos[i], reinterpret_cast<const float(*)[3]>(emd->vertexCos.data()));
|
|
}
|
|
}
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Calculate Min/Max
|
|
* \{ */
|
|
|
|
bool BKE_editmesh_cache_calc_minmax(BMEditMesh *em,
|
|
blender::bke::EditMeshData *emd,
|
|
float min[3],
|
|
float max[3])
|
|
{
|
|
using namespace blender;
|
|
BMesh *bm = em->bm;
|
|
if (bm->totvert == 0) {
|
|
zero_v3(min);
|
|
zero_v3(max);
|
|
return false;
|
|
}
|
|
|
|
if (emd->vertexCos.is_empty()) {
|
|
BMVert *eve;
|
|
BMIter iter;
|
|
BM_ITER_MESH (eve, &iter, bm, BM_VERTS_OF_MESH) {
|
|
minmax_v3v3_v3(min, max, eve->co);
|
|
}
|
|
}
|
|
else {
|
|
const Bounds<float3> bounds = *bounds::min_max(emd->vertexCos.as_span());
|
|
copy_v3_v3(min, math::min(bounds.min, float3(min)));
|
|
copy_v3_v3(max, math::max(bounds.max, float3(max)));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/** \} */
|