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Python API: add loop triangles access, remove tessfaces.

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Loop triangles are tessellated triangles create from polygons, for renderers
or exporters that need to match Blender's polygon tesselation exactly. These
are a read-only runtime cache.

Tessfaces are a legacy data structure from before Blender supported n-gons,
and were already mostly removed from the C code.

Details on porting code to loop triangles is in the release notes.

Differential Revision: https://developer.blender.org/D3539
This commit is contained in:
Brecht Van Lommel
2018-09-06 14:28:14 +02:00
parent 468474a653
commit e65784a051
21 changed files with 261 additions and 1236 deletions
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14
source/blender/python/bmesh/bmesh_py_api.c
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@@ -113,30 +113,30 @@ static PyObject *bpy_bm_from_edit_mesh(PyObject *UNUSED(self), PyObject *value)
}
PyDoc_STRVAR(bpy_bm_update_edit_mesh_doc,
".. method:: update_edit_mesh(mesh, tessface=True, destructive=True)\n"
".. method:: update_edit_mesh(mesh, loop_triangles=True, destructive=True)\n"
"\n"
" Update the mesh after changes to the BMesh in editmode, \n"
" optionally recalculating n-gon tessellation.\n"
"\n"
" :arg mesh: The editmode mesh.\n"
" :type mesh: :class:`bpy.types.Mesh`\n"
" :arg tessface: Option to recalculate n-gon tessellation.\n"
" :type tessface: boolean\n"
" :arg loop_triangles: Option to recalculate n-gon tessellation.\n"
" :type loop_triangles: boolean\n"
" :arg destructive: Use when geometry has been added or removed.\n"
" :type destructive: boolean\n"
);
static PyObject *bpy_bm_update_edit_mesh(PyObject *UNUSED(self), PyObject *args, PyObject *kw)
{
static const char *kwlist[] = {"mesh", "tessface", "destructive", NULL};
static const char *kwlist[] = {"mesh", "loop_triangles", "destructive", NULL};
PyObject *py_me;
Mesh *me;
bool do_tessface = true;
bool do_loop_triangles = true;
bool is_destructive = true;
if (!PyArg_ParseTupleAndKeywords(
args, kw, "O|O&O&:update_edit_mesh", (char **)kwlist,
&py_me,
PyC_ParseBool, &do_tessface,
PyC_ParseBool, &do_loop_triangles,
PyC_ParseBool, &is_destructive))
{
return NULL;
@@ -157,7 +157,7 @@ static PyObject *bpy_bm_update_edit_mesh(PyObject *UNUSED(self), PyObject *args,
{
extern void EDBM_update_generic(BMEditMesh *em, const bool do_tessface, const bool is_destructive);
EDBM_update_generic(me->edit_btmesh, do_tessface, is_destructive);
EDBM_update_generic(me->edit_btmesh, do_loop_triangles, is_destructive);
}
Py_RETURN_NONE;