スクリプトについては後々GitHubにもまとめる予定です。
シーン(USDでのStage)の全Meshの面数の総数を計算します。
シーン規模を大雑把に把握したい場合などにご使用くださいませ。
対応している形状
- Mesh
- PointInstancer ("Paint"で配置するMesh)
Referenceで参照している形状にも対応しています。
使い方
Script Editorで以下のスクリプトをコピー&ペーストして実行します。
from pxr import Usd, UsdGeom, UsdPhysics, UsdShade, Sdf, Gf, Tf
# ---------------------------------------.
# Get the number of faces used by PointInstancer.
# ---------------------------------------.
def TraversePointInstancer (prim):
typeName = prim.GetTypeName()
allCou = 0
if typeName == 'Mesh':
m = UsdGeom.Mesh(prim)
# If it is displayed.
if m.ComputeVisibility() == 'inherited':
# Get the number of faces of Mesh.
allCou += len(m.GetFaceVertexCountsAttr().Get())
# Recursively traverse the hierarchy.
pChildren = prim.GetChildren()
for cPrim in pChildren:
allCou += TraversePointInstancer(cPrim)
return allCou
# ---------------------------------------.
# traverse the hierarchy.
# ---------------------------------------.
def TraverseHierarchy_number (depth, prim):
if prim.IsValid() == None:
return 0
typeName = prim.GetTypeName()
allCou = 0
if typeName == 'PointInstancer':
m = UsdGeom.PointInstancer(prim)
# If it is displayed.
if m.ComputeVisibility() == 'inherited':
# Get the number of faces used by PointInstancer.
facesCou = TraversePointInstancer(prim)
piCou = 0
positionsA = m.GetPositionsAttr().Get()
if positionsA != None:
piCou = len(positionsA)
allCou += facesCou * piCou
return allCou
if typeName == 'Mesh':
m = UsdGeom.Mesh(prim)
# If it is displayed.
if m.ComputeVisibility() == 'inherited':
# Get the number of faces of Mesh.
allCou += len(m.GetFaceVertexCountsAttr().Get())
# Recursively traverse the hierarchy.
pChildren = prim.GetChildren()
for cPrim in pChildren:
allCou += TraverseHierarchy_number(depth + 1, cPrim)
return allCou
# ---------------------------------------.
# Get stage.
stage = omni.usd.get_context().get_stage()
# Get default prim.
defaultPrim = stage.GetDefaultPrim()
# Get root path.
rootPath = '/'
if defaultPrim.IsValid():
rootPath = defaultPrim.GetPath().pathString
# traverse the hierarchy.
tPrim = stage.GetPrimAtPath(rootPath)
allFacesCou = TraverseHierarchy_number(0, tPrim)
print("Number of all faces : " + str(allFacesCou))
実行すると、Script EditorにMeshの面数の総数が出力されます。