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3e8a75e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | # Imports each GLB listed in a text file into an empty Blender scene and prints one JSON line per file:
# {"file", "ok", "meshes", "triangles", "armatures", "actions", "frames", "error"}.
# A file passes with a mesh, or (a skeleton-only clip) with an armature and an action that has keys.
# Usage: blender -b --factory-startup --python blender_check.py -- <file_list.txt>
import json
import sys
import bpy
sys.stdout.reconfigure(encoding="utf-8", errors="replace")
list_path = sys.argv[sys.argv.index("--") + 1]
with open(list_path, encoding="utf-8") as handle:
file_paths = [line.strip() for line in handle if line.strip()]
for file_path in file_paths:
bpy.ops.wm.read_factory_settings(use_empty=True)
record = {"file": file_path}
try:
bpy.ops.import_scene.gltf(filepath=file_path)
meshes = [item for item in bpy.context.scene.objects if item.type == "MESH"]
record["meshes"] = len(meshes)
record["triangles"] = sum(sum(len(polygon.vertices) - 2 for polygon in item.data.polygons) for item in meshes)
record["armatures"] = sum(1 for item in bpy.context.scene.objects if item.type == "ARMATURE")
record["actions"] = len(bpy.data.actions)
if bpy.data.actions:
start, end = bpy.data.actions[0].frame_range
record["frames"] = int(end - start) + 1
skeleton_clip = record["armatures"] > 0 and record.get("frames", 0) > 1
record["ok"] = (record["meshes"] > 0 and record["triangles"] > 0) or skeleton_clip
if not record["ok"]:
record["error"] = "imported without any mesh or animated armature"
except Exception as error: # Blender raises RuntimeError with the importer's message
record["ok"] = False
record["error"] = str(error)[:300]
print(json.dumps(record), flush=True)
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