def gather_primitives(blender_mesh: bpy.types.Mesh,
vertex_groups: Optional[bpy.types.VertexGroups],
modifiers: Optional[bpy.types.ObjectModifiers],
export_settings) -> List[gltf2_io.MeshPrimitive]:
"""
Extract the mesh primitives from a blender object
:return: a list of glTF2 primitives
"""
primitives = []
blender_primitives = gltf2_blender_extract.extract_primitives(
None, blender_mesh, vertex_groups, modifiers, export_settings)
for internal_primitive in blender_primitives:
if bpy.app.version < (2, 80, 0):
def __gather_materials_279(blender_primitive, blender_mesh,
modifiers, export_settings):
if not blender_primitive['material']:
# TODO: fix 'extract_primitives' so that the value of 'material' is None and not empty string
return None
mesh_double_sided = blender_mesh.show_double_sided
material = bpy.data.materials[blender_primitive['material']]
return gltf2_blender_gather_materials.gather_material(
material, mesh_double_sided, export_settings)
primitive = gltf2_io.MeshPrimitive(
attributes=__gather_attributes(internal_primitive,
blender_mesh, modifiers,
export_settings),
extensions=None,
extras=None,
indices=__gather_indices(internal_primitive, blender_mesh,
modifiers, export_settings),
material=__gather_materials_279(internal_primitive,
blender_mesh, modifiers,
export_settings),
mode=None,
targets=__gather_targets(internal_primitive, blender_mesh,
modifiers, export_settings))
else:
primitive = gltf2_io.MeshPrimitive(
attributes=__gather_attributes(internal_primitive,
blender_mesh, modifiers,
export_settings),
extensions=None,
extras=None,
indices=__gather_indices(internal_primitive, blender_mesh,
modifiers, export_settings),
material=__gather_materials(internal_primitive, modifiers,
export_settings),
mode=None,
targets=__gather_targets(internal_primitive, blender_mesh,
modifiers, export_settings))
primitives.append(primitive)
return primitives
def gather_primitives(blender_object, export_settings):
"""
Extract the mesh primitives from a blender object
:param blender_object: the mesh object
:param export_settings:
:return: a list of glTF2 primitives
"""
primitives = []
blender_mesh = blender_object.data
blender_vertex_groups = blender_object.vertex_groups
blender_primitives = gltf2_blender_extract.extract_primitives(
None, blender_mesh, blender_vertex_groups, export_settings)
for internal_primitive in blender_primitives:
primitive = gltf2_io.MeshPrimitive(
attributes=__gather_attributes(internal_primitive,
export_settings),
extensions=None,
extras=None,
indices=__gather_indices(internal_primitive, export_settings),
material=__gather_materials(internal_primitive, export_settings),
mode=None,
targets=__gather_targets(internal_primitive, blender_object,
export_settings))
primitives.append(primitive)
return primitives
def gather_primitives(blender_mesh: bpy.types.Mesh,
vertex_groups: Optional[bpy.types.VertexGroups],
modifiers: Optional[bpy.types.ObjectModifiers],
export_settings) -> List[gltf2_io.MeshPrimitive]:
"""
Extract the mesh primitives from a blender object
:return: a list of glTF2 primitives
"""
primitives = []
blender_primitives = gltf2_blender_extract.extract_primitives(
None, blender_mesh, vertex_groups, modifiers, export_settings)
for internal_primitive in blender_primitives:
primitive = gltf2_io.MeshPrimitive(
attributes=__gather_attributes(internal_primitive, blender_mesh,
modifiers, export_settings),
extensions=None,
extras=None,
indices=__gather_indices(internal_primitive, blender_mesh,
modifiers, export_settings),
material=__gather_materials(internal_primitive, blender_mesh,
modifiers, export_settings),
mode=None,
targets=__gather_targets(internal_primitive, blender_mesh,
modifiers, export_settings))
primitives.append(primitive)
return primitives
def gather_primitives(blender_mesh: bpy.types.Mesh, uuid_for_skined_data,
vertex_groups: Optional[bpy.types.VertexGroups],
modifiers: Optional[bpy.types.ObjectModifiers],
materials: Tuple[bpy.types.Material],
export_settings) -> List[gltf2_io.MeshPrimitive]:
"""
Extract the mesh primitives from a blender object
:return: a list of glTF2 primitives
"""
primitives = []
# retrieve active render UVMap
active_uvmap_idx = 0
for i in range(len(blender_mesh.uv_layers)):
if blender_mesh.uv_layers[i].active_render is True:
active_uvmap_idx = i
break
blender_primitives = __gather_cache_primitives(blender_mesh,
uuid_for_skined_data,
vertex_groups, modifiers,
export_settings)
for internal_primitive in blender_primitives:
material_idx = internal_primitive['material']
material = None
if export_settings[
'gltf_materials'] == "EXPORT" and material_idx is not None:
blender_material = None
mat = None
if materials:
i = material_idx if material_idx < len(materials) else -1
mat = materials[i]
if mat is not None:
material = gltf2_blender_gather_materials.gather_material(
mat, active_uvmap_idx, export_settings)
primitive = gltf2_io.MeshPrimitive(
attributes=internal_primitive['attributes'],
extensions=None,
extras=None,
indices=internal_primitive['indices'],
material=material,
mode=internal_primitive['mode'],
targets=internal_primitive['targets'])
primitives.append(primitive)
return primitives
def gather_primitives(
blender_mesh: bpy.types.Mesh,
library: Optional[str],
blender_object: Optional[bpy.types.Object],
vertex_groups: Optional[bpy.types.VertexGroups],
modifiers: Optional[bpy.types.ObjectModifiers],
material_names: Tuple[str],
export_settings
) -> List[gltf2_io.MeshPrimitive]:
"""
Extract the mesh primitives from a blender object
:return: a list of glTF2 primitives
"""
primitives = []
blender_primitives = __gather_cache_primitives(blender_mesh, library, blender_object,
vertex_groups, modifiers, export_settings)
for internal_primitive in blender_primitives:
material_idx = internal_primitive['material']
material = None
if export_settings['gltf_materials'] == "EXPORT" and material_idx is not None:
blender_material = None
if material_names:
i = material_idx if material_idx < len(material_names) else -1
material_name = material_names[i]
if material_name is not None:
blender_material = bpy.data.materials[material_name]
if blender_material is not None:
material = gltf2_blender_gather_materials.gather_material(
blender_material,
export_settings,
)
primitive = gltf2_io.MeshPrimitive(
attributes=internal_primitive['attributes'],
extensions=None,
extras=None,
indices=internal_primitive['indices'],
material=material,
mode=internal_primitive['mode'],
targets=internal_primitive['targets']
)
primitives.append(primitive)
return primitives
def gather_primitives(
blender_mesh: bpy.types.Mesh,
vertex_groups: Optional[bpy.types.VertexGroups],
modifiers: Optional[bpy.types.ObjectModifiers],
material_names: Tuple[str],
export_settings
) -> List[gltf2_io.MeshPrimitive]:
"""
Extract the mesh primitives from a blender object
:return: a list of glTF2 primitives
"""
primitives = []
blender_primitives = __gather_cache_primitives(blender_mesh,
vertex_groups, modifiers, export_settings)
for internal_primitive in blender_primitives:
material_idx = internal_primitive['material']
double_sided = False
material = None
try:
blender_material = bpy.data.materials[material_names[material_idx]]
if bpy.app.version < (2, 80, 0):
double_sided = blender_mesh.show_double_sided
else:
double_sided = not blender_material.use_backface_culling
material = gltf2_blender_gather_materials.gather_material(blender_material,
double_sided,
export_settings)
except IndexError:
# no material at that index
pass
primitive = gltf2_io.MeshPrimitive(
attributes=internal_primitive['attributes'],
extensions=None,
extras=None,
indices=internal_primitive['indices'],
material=material,
mode=None,
targets=internal_primitive['targets']
)
primitives.append(primitive)
return primitives
def gather_primitives(blender_mesh: bpy.types.Mesh, library: Optional[str],
blender_object: Optional[bpy.types.Object],
vertex_groups: Optional[bpy.types.VertexGroups],
modifiers: Optional[bpy.types.ObjectModifiers],
material_names: Tuple[str],
export_settings) -> List[gltf2_io.MeshPrimitive]:
"""
Extract the mesh primitives from a blender object
:return: a list of glTF2 primitives
"""
primitives = []
blender_primitives = __gather_cache_primitives(blender_mesh, library,
blender_object,
vertex_groups, modifiers,
export_settings)
for internal_primitive in blender_primitives:
material_idx = internal_primitive['material']
double_sided = False
material = None
try:
blender_material = bpy.data.materials[material_names[material_idx]]
double_sided = not blender_material.use_backface_culling
material = gltf2_blender_gather_materials.gather_material(
blender_material, double_sided, export_settings)
# NOTE: gather_material may invalidate blender_mesh (see #932),
# so make sure not to access blender_mesh again after this point
except IndexError:
# no material at that index
pass
primitive = gltf2_io.MeshPrimitive(
attributes=internal_primitive['attributes'],
extensions=None,
extras=None,
indices=internal_primitive['indices'],
material=material,
mode=None,
targets=internal_primitive['targets'])
primitives.append(primitive)
return primitives
