87 lines
3.3 KiB
Python
87 lines
3.3 KiB
Python
#!/usr/bin/env python3
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import hashlib
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import json
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import os
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import pathlib
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import sys
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import tempfile
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import bpy
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def rounded(value):
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return round(float(value), 6)
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def socket_value(node, name, fallback):
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socket = node.inputs.get(name)
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if socket is None:
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return fallback
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value = socket.default_value
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if hasattr(value, "__len__"):
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return [rounded(item) for item in value]
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return rounded(value)
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def material_report():
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material = bpy.data.materials.get("WebGapMaterial")
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if material is None or not material.use_nodes:
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raise RuntimeError("WebGapMaterial node tree is missing")
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nodes = material.node_tree.nodes
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principled = nodes.get("Principled BSDF")
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if principled is None:
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raise RuntimeError("WebGapMaterial Principled node is missing")
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return {
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"id": "material:WebGapMaterial",
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"name": material.name,
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"baseColor": socket_value(principled, "Base Color", [0.8, 0.8, 0.8, 1.0]),
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"roughness": socket_value(principled, "Roughness", 0.4),
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"metallic": socket_value(principled, "Metallic", 0.0),
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"emissionColor": socket_value(principled, "Emission Color", [0.0, 0.0, 0.0, 1.0]),
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"alpha": socket_value(principled, "Alpha", 1.0),
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"ior": socket_value(principled, "IOR", 1.45),
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"specularIORLevel": socket_value(principled, "Specular IOR Level", 0.5),
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"transmissionWeight": socket_value(principled, "Transmission Weight", 0.0),
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"coatWeight": socket_value(principled, "Coat Weight", 0.0),
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"coatRoughness": socket_value(principled, "Coat Roughness", 0.03),
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"emissionStrength": socket_value(principled, "Emission Strength", 1.0),
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"nodeTypes": sorted(node.bl_idname for node in nodes),
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"linkCount": len(material.node_tree.links),
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}
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def main() -> None:
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arguments = sys.argv[sys.argv.index("--") + 1 :]
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if len(arguments) != 2:
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raise SystemExit("usage: blender -b --python check-material-desktop.py -- FIXTURE REPORT")
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fixture, output = (pathlib.Path(value).resolve() for value in arguments)
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bpy.ops.wm.open_mainfile(filepath=str(fixture), load_ui=False)
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before = material_report()
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descriptor, temporary = tempfile.mkstemp(prefix="m16-material-reopen-", suffix=".blend", dir=fixture.parent)
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os.close(descriptor)
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try:
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bpy.ops.wm.save_as_mainfile(filepath=temporary, check_existing=False, compress=True)
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bpy.ops.wm.open_mainfile(filepath=temporary, load_ui=False)
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after = material_report()
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finally:
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pathlib.Path(temporary).unlink(missing_ok=True)
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if before != after:
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raise RuntimeError(f"material save/reopen drift: {before} != {after}")
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report = {
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"schemaVersion": 1,
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"task": "M16-GAP-00013",
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"operation": "MATERIAL_DATABLOCK_DESKTOP",
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"fixture": str(fixture),
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"fixtureSha256": hashlib.sha256(fixture.read_bytes()).hexdigest(),
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"material": after,
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"saveReopen": "EXACT",
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"blenderVersion": bpy.app.version_string,
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}
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output.parent.mkdir(parents=True, exist_ok=True)
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output.write_text(json.dumps(report, indent=2, sort_keys=True) + "\n", encoding="utf-8")
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print(f"material-desktop-ok id={after['id']} nodes={len(after['nodeTypes'])} links={after['linkCount']} saveReopen=exact")
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if __name__ == "__main__":
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main()
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