133 lines
4.4 KiB
C
133 lines
4.4 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
*
|
|
* The \link edmesh EDBM module \endlink is for editmode bmesh stuff.
|
|
* In contrast, this module is for code shared with blenkernel that's
|
|
* only concerned with low level operations on the #BMEditMesh structure.
|
|
*/
|
|
|
|
#include "DNA_customdata_types.h"
|
|
#include "bmesh.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct BMLoop;
|
|
struct BMPartialUpdate;
|
|
struct BMesh;
|
|
struct BMeshCalcTessellation_Params;
|
|
struct BoundBox;
|
|
struct Depsgraph;
|
|
struct Mesh;
|
|
struct Object;
|
|
struct Scene;
|
|
|
|
/**
|
|
* This structure is used for mesh edit-mode.
|
|
*
|
|
* Through this, you get access to both the edit #BMesh, its tessellation,
|
|
* and various data that doesn't belong in the #BMesh struct itself
|
|
* (mostly related to mesh evaluation).
|
|
*
|
|
* The entire modifier system works with this structure, and not #BMesh.
|
|
* #Mesh.edit_bmesh stores a pointer to this structure. */
|
|
typedef struct BMEditMesh {
|
|
struct BMesh *bm;
|
|
|
|
/**
|
|
* Face triangulation (tessellation) is stored as triplets of three loops,
|
|
* which each define a triangle.
|
|
*
|
|
* \see #MLoopTri as the documentation gives useful hints that apply to this data too.
|
|
*/
|
|
struct BMLoop *(*looptris)[3];
|
|
int tottri;
|
|
|
|
/** Selection mode (#SCE_SELECT_VERTEX, #SCE_SELECT_EDGE & #SCE_SELECT_FACE). */
|
|
short selectmode;
|
|
/** The active material (assigned to newly created faces). */
|
|
short mat_nr;
|
|
|
|
/** Temp variables for x-mirror editing (-1 when the layer does not exist). */
|
|
int mirror_cdlayer;
|
|
|
|
/**
|
|
* Enable for evaluated copies, causes the edit-mesh to free the memory, not its contents.
|
|
*/
|
|
char is_shallow_copy;
|
|
|
|
/**
|
|
* ID data is older than edit-mode data.
|
|
* Set #Main.is_memfile_undo_flush_needed when enabling.
|
|
*/
|
|
char needs_flush_to_id;
|
|
|
|
} BMEditMesh;
|
|
|
|
/* editmesh.cc */
|
|
|
|
void BKE_editmesh_looptri_calc_ex(BMEditMesh *em,
|
|
const struct BMeshCalcTessellation_Params *params);
|
|
void BKE_editmesh_looptri_calc(BMEditMesh *em);
|
|
void BKE_editmesh_looptri_calc_with_partial_ex(BMEditMesh *em,
|
|
struct BMPartialUpdate *bmpinfo,
|
|
const struct BMeshCalcTessellation_Params *params);
|
|
void BKE_editmesh_looptri_calc_with_partial(BMEditMesh *em, struct BMPartialUpdate *bmpinfo);
|
|
void BKE_editmesh_looptri_and_normals_calc_with_partial(BMEditMesh *em,
|
|
struct BMPartialUpdate *bmpinfo);
|
|
|
|
/**
|
|
* Performing the face normal calculation at the same time as tessellation
|
|
* gives a reasonable performance boost (approx ~20% faster).
|
|
*/
|
|
void BKE_editmesh_looptri_and_normals_calc(BMEditMesh *em);
|
|
|
|
/**
|
|
* \note The caller is responsible for ensuring triangulation data,
|
|
* typically by calling #BKE_editmesh_looptri_calc.
|
|
*/
|
|
BMEditMesh *BKE_editmesh_create(BMesh *bm);
|
|
BMEditMesh *BKE_editmesh_copy(BMEditMesh *em);
|
|
/**
|
|
* \brief Return the #BMEditMesh for a given object
|
|
*
|
|
* \note this function assumes this is a mesh object,
|
|
* don't add NULL data check here. caller must do that
|
|
*/
|
|
BMEditMesh *BKE_editmesh_from_object(struct Object *ob);
|
|
/**
|
|
* \note Does not free the #BMEditMesh struct itself.
|
|
*/
|
|
void BKE_editmesh_free_data(BMEditMesh *em);
|
|
|
|
float (*BKE_editmesh_vert_coords_alloc(struct Depsgraph *depsgraph,
|
|
struct BMEditMesh *em,
|
|
struct Scene *scene,
|
|
struct Object *ob,
|
|
int *r_vert_len))[3];
|
|
float (*BKE_editmesh_vert_coords_alloc_orco(BMEditMesh *em, int *r_vert_len))[3];
|
|
const float (*BKE_editmesh_vert_coords_when_deformed(struct Depsgraph *depsgraph,
|
|
struct BMEditMesh *em,
|
|
struct Scene *scene,
|
|
struct Object *obedit,
|
|
int *r_vert_len,
|
|
bool *r_is_alloc))[3];
|
|
|
|
void BKE_editmesh_lnorspace_update(BMEditMesh *em, struct Mesh *me);
|
|
/**
|
|
* If auto-smooth not already set, set it.
|
|
*/
|
|
void BKE_editmesh_ensure_autosmooth(BMEditMesh *em, struct Mesh *me);
|
|
struct BoundBox *BKE_editmesh_cage_boundbox_get(struct Object *object, BMEditMesh *em);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|