#include <obj_export_mesh.hh>

Inherits blender::NonCopyable.

Public Member Functions
	OBJMesh (Depsgraph depsgraph, const OBJExportParams &export_params, Object mesh_object)

	~OBJMesh ()

void	clear ()

int	tot_vertices () const

int	tot_faces () const

int	tot_uv_vertices () const

int	tot_edges () const

int	tot_deform_groups () const

bool	is_mirrored_transform () const

int16_t	tot_materials () const

void	calc_smooth_groups (bool use_bitflags)

int	ith_smooth_group (int face_index) const

bool	is_ith_face_smooth (int face_index) const

StringRef	get_object_name () const

StringRef	get_object_mesh_name () const

const float4x4 &	get_world_axes_transform () const

Span< int >	calc_face_vert_indices (const int face_index) const

void	store_uv_coords_and_indices ()

const Span< float2 >	get_uv_coords () const

Span< int >	get_face_uv_indices (const int face_index) const

void	store_normal_coords_and_indices ()

Span< float3 >	get_normal_coords () const

Span< int >	get_face_normal_indices (const int face_index) const

int16_t	get_face_deform_group_index (int face_index, MutableSpan< float > group_weights) const

const char *	get_face_deform_group_name (int16_t def_group_index) const

void	calc_face_order ()

int	remap_face_index (int i) const

const Mesh *	get_mesh () const

Public Attributes
Array< const Material * >	materials

Detailed Description

Definition at line 31 of file obj_export_mesh.hh.

Constructor & Destructor Documentation

◆ OBJMesh()

blender::io::obj::OBJMesh::OBJMesh	(	Depsgraph *	depsgraph,
		const OBJExportParams &	export_params,
		Object *	mesh_object )

Store evaluated Object and Mesh pointers. Conditionally triangulate a mesh, or create a new Mesh from a Curve.

Definition at line 40 of file obj_export_mesh.cc.

References OBJExportParams::apply_modifiers, Geometry::attributes, BKE_mesh_new_from_object(), BKE_object_get_evaluated_mesh(), BKE_object_get_pre_modified_mesh(), BKE_object_material_get_eval(), DEG_get_evaluated_object(), depsgraph, OBJExportParams::export_triangulated_mesh, blender::bke::Face, OBJExportParams::forward_axis, OBJExportParams::global_scale, Object::id, ID::name, OB_MESH, Mesh::totcol, Object::type, and OBJExportParams::up_axis.

◆ ~OBJMesh()

blender::io::obj::OBJMesh::~OBJMesh ( )

Free new meshes allocated for triangulated meshes, or Curve converted to Mesh.

Definition at line 81 of file obj_export_mesh.cc.

References clear().

Member Function Documentation

◆ calc_face_order()

void blender::io::obj::OBJMesh::calc_face_order ( )

Calculate the order in which the faces should be written into the file (sorted by material index).

Definition at line 220 of file obj_export_mesh.cc.

References blender::Array< T, InlineBufferCapacity, Allocator >::as_mutable_span(), Geometry::attributes, b, blender::Array< T, InlineBufferCapacity, Allocator >::begin(), blender::Array< T, InlineBufferCapacity, Allocator >::end(), blender::bke::Face, blender::array_utils::fill_index_range(), blender::VArrayCommon< T >::get_internal_single(), blender::VArrayCommon< T >::is_single(), blender::parallel_sort(), blender::Array< T, InlineBufferCapacity, Allocator >::reinitialize(), and blender::Span< T >::size().

Referenced by blender::io::obj::write_mesh_objects().

◆ calc_face_vert_indices()

Span< int > blender::io::obj::OBJMesh::calc_face_vert_indices ( const int face_index ) const

inline

Calculate vertex indices of all vertices of the face at the given index.

Definition at line 129 of file obj_export_mesh.hh.

References blender::Span< T >::slice().

Referenced by blender::io::obj::OBJWriter::write_face_elements().

◆ calc_smooth_groups()

void blender::io::obj::OBJMesh::calc_smooth_groups ( bool use_bitflags )

Calculate smooth groups of a smooth-shaded object.

Returns: A face aligned array of smooth group numbers.

Definition at line 206 of file obj_export_mesh.cc.

References Geometry::attributes, BKE_mesh_calc_smoothgroups(), blender::bke::Edge, blender::bke::Face, and blender::Span< T >::size().

Referenced by blender::io::obj::write_mesh_objects().

◆ clear()

void blender::io::obj::OBJMesh::clear ( )

Definition at line 100 of file obj_export_mesh.cc.

References BKE_id_free(), and MEM_freeN().

Referenced by blender::io::obj::write_mesh_objects(), and ~OBJMesh().

◆ get_face_deform_group_index()

int16_t blender::io::obj::OBJMesh::get_face_deform_group_index	(	int	face_index,
		MutableSpan< float >	group_weights ) const

Find the most representative vertex group of a face.

This adds up vertex group weights, and the group with the largest weight sum across the face is the one returned.

group_weights is temporary storage to avoid reallocations, it must be the size of amount of vertex groups in the object.

Definition at line 377 of file obj_export_mesh.cc.

References blender::MutableSpan< T >::begin(), BLI_assert, BLI_listbase_count(), MDeformWeight::def_nr, MDeformVert::dw, blender::MutableSpan< T >::end(), blender::MutableSpan< T >::fill(), blender::Span< T >::is_empty(), NOT_FOUND, blender::MutableSpan< T >::size(), MDeformVert::totweight, and MDeformWeight::weight.

Referenced by blender::io::obj::OBJWriter::write_face_elements().

◆ get_face_deform_group_name()

const char * blender::io::obj::OBJMesh::get_face_deform_group_name ( int16_t def_group_index ) const

Find the name of the vertex deform group at the given index. The index indices into the #Object.defbase.

Definition at line 409 of file obj_export_mesh.cc.

References BLI_findlink(), and bDeformGroup::name.

Referenced by blender::io::obj::OBJWriter::write_face_elements().

◆ get_face_normal_indices()

Span< int > blender::io::obj::OBJMesh::get_face_normal_indices ( const int face_index ) const

inline

Calculate a face's face/corner normal indices.

Parameters

face_index Index of the face to calculate indices for.

Returns: Span of normal indices, aligned with vertices of face.

Definition at line 168 of file obj_export_mesh.hh.

References blender::Array< T, InlineBufferCapacity, Allocator >::as_span(), and blender::Array< T, InlineBufferCapacity, Allocator >::is_empty().

Referenced by blender::io::obj::OBJWriter::write_face_elements().

◆ get_face_uv_indices()

Span< int > blender::io::obj::OBJMesh::get_face_uv_indices ( const int face_index ) const

inline

Definition at line 144 of file obj_export_mesh.hh.

References blender::Array< T, InlineBufferCapacity, Allocator >::as_span(), BLI_assert, blender::Vector< T, InlineBufferCapacity, Allocator >::is_empty(), and blender::offset_indices::OffsetIndices< T >::size().

Referenced by blender::io::obj::OBJWriter::write_face_elements().

◆ get_mesh()

const Mesh * blender::io::obj::OBJMesh::get_mesh ( ) const

inline

Definition at line 209 of file obj_export_mesh.hh.

Referenced by blender::io::obj::OBJWriter::write_edges_indices(), blender::io::obj::OBJWriter::write_face_elements(), and blender::io::obj::OBJWriter::write_vertex_coords().

◆ get_normal_coords()

Span< float3 > blender::io::obj::OBJMesh::get_normal_coords ( ) const

inline

Definition at line 159 of file obj_export_mesh.hh.

Referenced by blender::io::obj::write_mesh_objects(), and blender::io::obj::OBJWriter::write_normals().

◆ get_object_mesh_name()

StringRef blender::io::obj::OBJMesh::get_object_mesh_name ( ) const

Get Object's Mesh's name.

Definition at line 253 of file obj_export_mesh.cc.

Referenced by blender::io::obj::OBJWriter::write_object_name().

◆ get_object_name()

StringRef blender::io::obj::OBJMesh::get_object_name ( ) const

Get object name as it appears in the outliner.

Definition at line 248 of file obj_export_mesh.cc.

Referenced by blender::io::obj::OBJWriter::write_face_elements(), and blender::io::obj::OBJWriter::write_object_name().

◆ get_uv_coords()

const Span< float2 > blender::io::obj::OBJMesh::get_uv_coords ( ) const

inline

Definition at line 140 of file obj_export_mesh.hh.

Referenced by blender::io::obj::OBJWriter::write_uv_coords().

◆ get_world_axes_transform()

const float4x4 & blender::io::obj::OBJMesh::get_world_axes_transform ( ) const

inline

Definition at line 121 of file obj_export_mesh.hh.

Referenced by blender::io::obj::OBJWriter::write_vertex_coords().

◆ is_ith_face_smooth()

bool blender::io::obj::OBJMesh::is_ith_face_smooth ( int face_index ) const

Definition at line 243 of file obj_export_mesh.cc.

◆ is_mirrored_transform()

bool blender::io::obj::OBJMesh::is_mirrored_transform ( ) const

inline

Definition at line 91 of file obj_export_mesh.hh.

Referenced by blender::io::obj::OBJWriter::write_face_elements().

◆ ith_smooth_group()

int blender::io::obj::OBJMesh::ith_smooth_group ( int face_index ) const

Returns: Smooth group of the face at the given index.

Definition at line 198 of file obj_export_mesh.cc.

References BLI_assert, and blender::io::obj::NEGATIVE_INIT.

◆ remap_face_index()

int blender::io::obj::OBJMesh::remap_face_index ( int i ) const

inline

Remap face index according to face writing order. When materials are not being written, the face order array might be empty, in which case remap is a no-op.

Definition at line 204 of file obj_export_mesh.hh.

References blender::Array< T, InlineBufferCapacity, Allocator >::size().

Referenced by blender::io::obj::OBJWriter::write_face_elements().