def export_bone_data(bobject: bpy.types.Object) -> bool:
"""Returns whether the bone data of the given object should be exported."""
return bobject.find_armature() and is_bone_animation_enabled(bobject) and get_rp().arm_skin == 'On'
def sync(obj_prim,
obj: bpy.types.Object,
mesh: bpy.types.Mesh = None,
**kwargs):
""" Creates pyrpr.Shape from obj.data:bpy.types.Mesh """
from .object import sdf_name
if not mesh:
mesh = obj.data
log("sync", mesh, obj)
data = MeshData.init_from_mesh(mesh, obj=obj)
if not data:
return
stage = obj_prim.GetStage()
usd_mesh = UsdGeom.Mesh.Define(
stage,
obj_prim.GetPath().AppendChild(Tf.MakeValidIdentifier(mesh.name)))
usd_mesh.CreateDoubleSidedAttr(True)
usd_mesh.CreateFaceVertexIndicesAttr(data.vertex_indices)
usd_mesh.CreateFaceVertexCountsAttr(data.num_face_vertices)
usd_mesh.CreateSubdivisionSchemeAttr(UsdGeom.Tokens.none)
usd_mesh.SetNormalsInterpolation(UsdGeom.Tokens.faceVarying)
points_attr = usd_mesh.CreatePointsAttr(data.vertices)
normals_attr = usd_mesh.CreateNormalsAttr(data.normals)
# here we can't just call mesh.calc_loop_triangles to update loops because Blender crashes
armature = obj.find_armature()
if armature and kwargs.get('is_use_animation', False):
scene = kwargs.get('scene')
frame_current = scene.frame_current
frame_start = kwargs.get('frame_start') if kwargs.get(
'is_restrict_frames') else scene.frame_start
frame_end = kwargs.get('frame_end') if kwargs.get(
'is_restrict_frames') else scene.frame_end
for frame in range(frame_start, frame_end + 1):
scene.frame_set(frame)
new_mesh = obj.to_mesh()
new_data = MeshData.init_from_mesh(new_mesh, obj=obj)
points_attr.Set(new_data.vertices, frame)
normals_attr.Set(new_data.normals, frame)
obj.to_mesh_clear()
scene.frame_set(frame_current)
for name, uv_layer in data.uv_layers.items():
uv_primvar = usd_mesh.CreatePrimvar(
"st", # default name, later we'll use sdf_path(name)
Sdf.ValueTypeNames.TexCoord2fArray,
UsdGeom.Tokens.faceVarying)
uv_primvar.Set(uv_layer[0])
uv_primvar.SetIndices(Vt.IntArray.FromNumpy(uv_layer[1]))
break # currently we use only first UV layer
_assign_materials(obj_prim, obj.original, usd_mesh)