def __gather_trans_rot_scale(blender_object, export_settings):
trans, rot, sca = gltf2_blender_extract.decompose_transition(
blender_object.matrix_local, 'NODE', export_settings)
if bpy.app.version < (2, 80, 0):
if blender_object.dupli_type == 'GROUP' and blender_object.dupli_group:
trans = -gltf2_blender_extract.convert_swizzle_location(
blender_object.dupli_group.dupli_offset, export_settings)
else:
if blender_object.instance_type == 'COLLECTION' and blender_object.instance_collection:
trans = -gltf2_blender_extract.convert_swizzle_location(
blender_object.instance_collection.instance_offset,
export_settings)
translation, rotation, scale = (None, None, None)
trans[0], trans[1], trans[2] = gltf2_blender_math.round_if_near(trans[0], 0.0), gltf2_blender_math.round_if_near(trans[1], 0.0), \
gltf2_blender_math.round_if_near(trans[2], 0.0)
rot[0], rot[1], rot[2], rot[3] = gltf2_blender_math.round_if_near(rot[0], 0.0), gltf2_blender_math.round_if_near(rot[1], 0.0), \
gltf2_blender_math.round_if_near(rot[2], 0.0), gltf2_blender_math.round_if_near(rot[3], 1.0)
sca[0], sca[1], sca[2] = gltf2_blender_math.round_if_near(sca[0], 1.0), gltf2_blender_math.round_if_near(sca[1], 1.0), \
gltf2_blender_math.round_if_near(sca[2], 1.0)
if trans[0] != 0.0 or trans[1] != 0.0 or trans[2] != 0.0:
translation = [trans[0], trans[1], trans[2]]
if rot[0] != 0.0 or rot[1] != 0.0 or rot[2] != 0.0 or rot[3] != 1.0:
rotation = [rot[0], rot[1], rot[2], rot[3]]
if sca[0] != 1.0 or sca[1] != 1.0 or sca[2] != 1.0:
scale = [sca[0], sca[1], sca[2]]
return translation, rotation, scale
def gather_joint(blender_bone, export_settings):
"""
Generate a glTF2 node from a blender bone, as joints in glTF2 are simply nodes
:param blender_bone: a blender PoseBone
:param export_settings: the settings for this export
:return: a glTF2 node (acting as a joint)
"""
axis_basis_change = mathutils.Matrix.Identity(4)
if export_settings['gltf_yup']:
axis_basis_change = mathutils.Matrix(
((1.0, 0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0), (0.0, -1.0, 0.0, 0.0),
(0.0, 0.0, 0.0, 1.0)))
# extract bone transform
if blender_bone.parent is None:
correction_matrix_local = gltf2_blender_math.multiply(
axis_basis_change, blender_bone.bone.matrix_local)
else:
correction_matrix_local = gltf2_blender_math.multiply(
blender_bone.parent.bone.matrix_local.inverted(),
blender_bone.bone.matrix_local)
matrix_basis = blender_bone.matrix_basis
if export_settings['gltf_bake_skins']:
gltf2_io_debug.print_console("WARNING",
"glTF bake skins not supported")
# matrix_basis = blender_object.convert_space(blender_bone, blender_bone.matrix, from_space='POSE',
# to_space='LOCAL')
trans, rot, sca = gltf2_blender_extract.decompose_transition(
gltf2_blender_math.multiply(correction_matrix_local, matrix_basis),
'JOINT', export_settings)
translation, rotation, scale = (None, None, None)
if trans[0] != 0.0 or trans[1] != 0.0 or trans[2] != 0.0:
translation = [trans[0], trans[1], trans[2]]
if rot[0] != 0.0 or rot[1] != 0.0 or rot[2] != 0.0 or rot[3] != 1.0:
rotation = [rot[0], rot[1], rot[2], rot[3]]
if sca[0] != 1.0 or sca[1] != 1.0 or sca[2] != 1.0:
scale = [sca[0], sca[1], sca[2]]
# traverse into children
children = []
for bone in blender_bone.children:
children.append(gather_joint(bone, export_settings))
# finally add to the joints array containing all the joints in the hierarchy
return gltf2_io.Node(camera=None,
children=children,
extensions=None,
extras=None,
matrix=None,
mesh=None,
name=blender_bone.name,
rotation=rotation,
scale=scale,
skin=None,
translation=translation,
weights=None)
def gather_joint(blender_object, blender_bone, export_settings):
"""
Generate a glTF2 node from a blender bone, as joints in glTF2 are simply nodes.
:param blender_bone: a blender PoseBone
:param export_settings: the settings for this export
:return: a glTF2 node (acting as a joint)
"""
axis_basis_change = mathutils.Matrix.Identity(4)
if export_settings[gltf2_blender_export_keys.YUP]:
axis_basis_change = mathutils.Matrix(
((1.0, 0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0), (0.0, -1.0, 0.0, 0.0), (0.0, 0.0, 0.0, 1.0)))
# extract bone transform
if blender_bone.parent is None:
correction_matrix_local = gltf2_blender_math.multiply(axis_basis_change, blender_bone.bone.matrix_local)
else:
correction_matrix_local = gltf2_blender_math.multiply(
blender_bone.parent.bone.matrix_local.inverted(), blender_bone.bone.matrix_local)
matrix_basis = blender_bone.matrix_basis
trans, rot, sca = gltf2_blender_extract.decompose_transition(
gltf2_blender_math.multiply(correction_matrix_local, matrix_basis), export_settings)
translation, rotation, scale = (None, None, None)
if trans[0] != 0.0 or trans[1] != 0.0 or trans[2] != 0.0:
translation = [trans[0], trans[1], trans[2]]
if rot[0] != 1.0 or rot[1] != 0.0 or rot[2] != 0.0 or rot[3] != 0.0:
rotation = [rot[1], rot[2], rot[3], rot[0]]
if sca[0] != 1.0 or sca[1] != 1.0 or sca[2] != 1.0:
scale = [sca[0], sca[1], sca[2]]
# traverse into children
children = []
if export_settings["gltf_def_bones"] is False:
for bone in blender_bone.children:
children.append(gather_joint(blender_object, bone, export_settings))
else:
_, children_, _ = gltf2_blender_gather_skins.get_bone_tree(None, blender_bone.id_data)
if blender_bone.name in children_.keys():
for bone in children_[blender_bone.name]:
children.append(gather_joint(blender_object, blender_bone.id_data.pose.bones[bone], export_settings))
# finally add to the joints array containing all the joints in the hierarchy
return gltf2_io.Node(
camera=None,
children=children,
extensions=None,
extras=__gather_extras(blender_bone, export_settings),
matrix=None,
mesh=None,
name=blender_bone.name,
rotation=rotation,
scale=scale,
skin=None,
translation=translation,
weights=None
)
def __gather_trans_rot_scale(blender_object, export_settings):
if blender_object.matrix_parent_inverse == Matrix.Identity(4):
trans = blender_object.location
if blender_object.rotation_mode in ['QUATERNION', 'AXIS_ANGLE']:
rot = blender_object.rotation_quaternion
else:
rot = blender_object.rotation_euler.to_quaternion()
sca = blender_object.scale
else:
# matrix_local = matrix_parent_inverse*location*rotation*scale
# Decomposing matrix_local gives less accuracy, but is needed if matrix_parent_inverse is not the identity.
if blender_object.matrix_local[3][3] != 0.0:
trans, rot, sca = gltf2_blender_extract.decompose_transition(
blender_object.matrix_local, export_settings)
else:
# Some really weird cases, scale is null (if parent is null when evaluation is done)
print_console(
'WARNING',
'Some nodes are 0 scaled during evaluation. Result can be wrong'
)
trans = blender_object.location
if blender_object.rotation_mode in ['QUATERNION', 'AXIS_ANGLE']:
rot = blender_object.rotation_quaternion
else:
rot = blender_object.rotation_euler.to_quaternion()
sca = blender_object.scale
# make sure the rotation is normalized
rot.normalize()
trans = gltf2_blender_extract.convert_swizzle_location(
trans, None, None, export_settings)
rot = gltf2_blender_extract.convert_swizzle_rotation(rot, export_settings)
sca = gltf2_blender_extract.convert_swizzle_scale(sca, export_settings)
if blender_object.instance_type == 'COLLECTION' and blender_object.instance_collection:
trans -= gltf2_blender_extract.convert_swizzle_location(
blender_object.instance_collection.instance_offset, None, None,
export_settings)
translation, rotation, scale = (None, None, None)
trans[0], trans[1], trans[2] = gltf2_blender_math.round_if_near(trans[0], 0.0), gltf2_blender_math.round_if_near(trans[1], 0.0), \
gltf2_blender_math.round_if_near(trans[2], 0.0)
rot[0], rot[1], rot[2], rot[3] = gltf2_blender_math.round_if_near(rot[0], 1.0), gltf2_blender_math.round_if_near(rot[1], 0.0), \
gltf2_blender_math.round_if_near(rot[2], 0.0), gltf2_blender_math.round_if_near(rot[3], 0.0)
sca[0], sca[1], sca[2] = gltf2_blender_math.round_if_near(sca[0], 1.0), gltf2_blender_math.round_if_near(sca[1], 1.0), \
gltf2_blender_math.round_if_near(sca[2], 1.0)
if trans[0] != 0.0 or trans[1] != 0.0 or trans[2] != 0.0:
translation = [trans[0], trans[1], trans[2]]
if rot[0] != 1.0 or rot[1] != 0.0 or rot[2] != 0.0 or rot[3] != 0.0:
rotation = [rot[1], rot[2], rot[3], rot[0]]
if sca[0] != 1.0 or sca[1] != 1.0 or sca[2] != 1.0:
scale = [sca[0], sca[1], sca[2]]
return translation, rotation, scale
def gather_joint(blender_bone, export_settings):
"""
Generate a glTF2 node from a blender bone, as joints in glTF2 are simply nodes.
:param blender_bone: a blender PoseBone
:param export_settings: the settings for this export
:return: a glTF2 node (acting as a joint)
"""
axis_basis_change = mathutils.Matrix.Identity(4)
if export_settings[gltf2_blender_export_keys.YUP]:
axis_basis_change = mathutils.Matrix(
((1.0, 0.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0), (0.0, -1.0, 0.0, 0.0), (0.0, 0.0, 0.0, 1.0)))
# extract bone transform
if blender_bone.parent is None:
correction_matrix_local = gltf2_blender_math.multiply(axis_basis_change, blender_bone.bone.matrix_local)
else:
correction_matrix_local = gltf2_blender_math.multiply(
blender_bone.parent.bone.matrix_local.inverted(), blender_bone.bone.matrix_local)
matrix_basis = blender_bone.matrix_basis
if export_settings[gltf2_blender_export_keys.BAKE_SKINS]:
gltf2_io_debug.print_console("WARNING", "glTF bake skins not supported")
# matrix_basis = blender_object.convert_space(blender_bone, blender_bone.matrix, from_space='POSE',
# to_space='LOCAL')
trans, rot, sca = gltf2_blender_extract.decompose_transition(
gltf2_blender_math.multiply(correction_matrix_local, matrix_basis), export_settings)
translation, rotation, scale = (None, None, None)
if trans[0] != 0.0 or trans[1] != 0.0 or trans[2] != 0.0:
translation = [trans[0], trans[1], trans[2]]
if rot[0] != 0.0 or rot[1] != 0.0 or rot[2] != 0.0 or rot[3] != 1.0:
rotation = [rot[0], rot[1], rot[2], rot[3]]
if sca[0] != 1.0 or sca[1] != 1.0 or sca[2] != 1.0:
scale = [sca[0], sca[1], sca[2]]
# traverse into children
children = []
for bone in blender_bone.children:
children.append(gather_joint(bone, export_settings))
# finally add to the joints array containing all the joints in the hierarchy
return gltf2_io.Node(
camera=None,
children=children,
extensions=None,
extras=None,
matrix=None,
mesh=None,
name=blender_bone.name,
rotation=rotation,
scale=scale,
skin=None,
translation=translation,
weights=None
)
def __gather_trans_rot_scale(blender_object, export_settings):
trans, rot, sca = gltf2_blender_extract.decompose_transition(blender_object.matrix_local, 'NODE', export_settings)
if blender_object.dupli_type == 'GROUP' and blender_object.dupli_group:
trans = -gltf2_blender_extract.convert_swizzle_location(blender_object.dupli_group.dupli_offset, export_settings)
translation, rotation, scale = (None, None, None)
if trans[0] != 0.0 or trans[1] != 0.0 or trans[2] != 0.0:
translation = [trans[0], trans[1], trans[2]]
if rot[0] != 0.0 or rot[1] != 0.0 or rot[2] != 0.0 or rot[3] != 1.0:
rotation = [rot[0], rot[1], rot[2], rot[3]]
if sca[0] != 1.0 or sca[1] != 1.0 or sca[2] != 1.0:
scale = [sca[0], sca[1], sca[2]]
return translation, rotation, scale
def __gather_trans_rot_scale(blender_object, export_settings):
if blender_object.matrix_parent_inverse == Matrix.Identity(4):
trans = blender_object.location
if blender_object.rotation_mode in ['QUATERNION', 'AXIS_ANGLE']:
rot = blender_object.rotation_quaternion
else:
rot = blender_object.rotation_euler.to_quaternion()
sca = blender_object.scale
else:
# matrix_local = matrix_parent_inverse*location*rotation*scale
# Decomposing matrix_local gives less accuracy, but is needed if matrix_parent_inverse is not the identity.
trans, rot, sca = gltf2_blender_extract.decompose_transition(
blender_object.matrix_local, export_settings)
trans = gltf2_blender_extract.convert_swizzle_location(
trans, None, None, export_settings)
rot = gltf2_blender_extract.convert_swizzle_rotation(rot, export_settings)
sca = gltf2_blender_extract.convert_swizzle_scale(sca, export_settings)
if bpy.app.version < (2, 80, 0):
if blender_object.dupli_type == 'GROUP' and blender_object.dupli_group:
trans = -gltf2_blender_extract.convert_swizzle_location(
blender_object.dupli_group.dupli_offset, None, None,
export_settings)
else:
if blender_object.instance_type == 'COLLECTION' and blender_object.instance_collection:
trans = -gltf2_blender_extract.convert_swizzle_location(
blender_object.instance_collection.instance_offset, None, None,
export_settings)
translation, rotation, scale = (None, None, None)
trans[0], trans[1], trans[2] = gltf2_blender_math.round_if_near(trans[0], 0.0), gltf2_blender_math.round_if_near(trans[1], 0.0), \
gltf2_blender_math.round_if_near(trans[2], 0.0)
rot[0], rot[1], rot[2], rot[3] = gltf2_blender_math.round_if_near(rot[0], 1.0), gltf2_blender_math.round_if_near(rot[1], 0.0), \
gltf2_blender_math.round_if_near(rot[2], 0.0), gltf2_blender_math.round_if_near(rot[3], 0.0)
sca[0], sca[1], sca[2] = gltf2_blender_math.round_if_near(sca[0], 1.0), gltf2_blender_math.round_if_near(sca[1], 1.0), \
gltf2_blender_math.round_if_near(sca[2], 1.0)
if trans[0] != 0.0 or trans[1] != 0.0 or trans[2] != 0.0:
translation = [trans[0], trans[1], trans[2]]
if rot[0] != 1.0 or rot[1] != 0.0 or rot[2] != 0.0 or rot[3] != 0.0:
rotation = [rot[1], rot[2], rot[3], rot[0]]
if sca[0] != 1.0 or sca[1] != 1.0 or sca[2] != 1.0:
scale = [sca[0], sca[1], sca[2]]
return translation, rotation, scale