102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup bmesh
|
|
*/
|
|
|
|
#include "BLI_compiler_attrs.h"
|
|
|
|
/**
|
|
* Parameters used to determine which kinds of data needs to be generated.
|
|
*/
|
|
typedef struct BMPartialUpdate_Params {
|
|
bool do_normals;
|
|
bool do_tessellate;
|
|
} BMPartialUpdate_Params;
|
|
|
|
/**
|
|
* Cached data to speed up partial updates.
|
|
*
|
|
* Hints:
|
|
*
|
|
* - Avoid creating this data for single updates,
|
|
* it should be created and reused across multiple updates to gain a significant benefit
|
|
* (while transforming geometry for example).
|
|
*
|
|
* - Partial normal updates use face & loop indices,
|
|
* setting them to dirty values between updates will slow down normal recalculation.
|
|
*/
|
|
typedef struct BMPartialUpdate {
|
|
BMVert **verts;
|
|
BMFace **faces;
|
|
int verts_len, verts_len_alloc;
|
|
int faces_len, faces_len_alloc;
|
|
|
|
/** Store the parameters used in creation so invalid use can be asserted. */
|
|
BMPartialUpdate_Params params;
|
|
} BMPartialUpdate;
|
|
|
|
/**
|
|
* All Tagged & Connected, see: #BM_mesh_partial_create_from_verts
|
|
* Operate on everything that's tagged as well as connected geometry.
|
|
*/
|
|
BMPartialUpdate *BM_mesh_partial_create_from_verts(BMesh *bm,
|
|
const BMPartialUpdate_Params *params,
|
|
const unsigned int *verts_mask,
|
|
const int verts_mask_count)
|
|
ATTR_NONNULL(1, 2, 3) ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* All Connected, operate on all faces that have both tagged and un-tagged vertices.
|
|
*
|
|
* Reduces computations when transforming isolated regions.
|
|
*/
|
|
BMPartialUpdate *BM_mesh_partial_create_from_verts_group_single(
|
|
BMesh *bm,
|
|
const BMPartialUpdate_Params *params,
|
|
const unsigned int *verts_mask,
|
|
const int verts_mask_count) ATTR_NONNULL(1, 2, 3) ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/**
|
|
* All Connected, operate on all faces that have vertices in the same group.
|
|
*
|
|
* Reduces computations when transforming isolated regions.
|
|
*
|
|
* This is a version of #BM_mesh_partial_create_from_verts_group_single
|
|
* that handles multiple groups instead of a bitmap mask.
|
|
*
|
|
* This is needed for example when transform has mirror enabled,
|
|
* since one side needs to have a different group to the other since a face that has vertices
|
|
* attached to both won't have an affine transformation.
|
|
*
|
|
* \param verts_group: Vertex aligned array of groups.
|
|
* Values are used as follows:
|
|
* - >0: Each face is grouped with other faces of the same group.
|
|
* - 0: Not in a group (don't handle these).
|
|
* - -1: Don't use grouping logic (include any face that contains a vertex with this group).
|
|
* \param verts_group_count: The number of non-zero values in `verts_groups`.
|
|
*/
|
|
BMPartialUpdate *BM_mesh_partial_create_from_verts_group_multi(
|
|
BMesh *bm,
|
|
const BMPartialUpdate_Params *params,
|
|
const int *verts_group,
|
|
const int verts_group_count) ATTR_NONNULL(1, 2, 3) ATTR_WARN_UNUSED_RESULT;
|
|
|
|
void BM_mesh_partial_destroy(BMPartialUpdate *bmpinfo) ATTR_NONNULL(1);
|