77 lines
3.2 KiB
Python
77 lines
3.2 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 material_report():
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material = bpy.data.materials.get("WBV2P3001PrincipledMaterial")
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cube = bpy.data.objects.get("WBV2P3001MaterialCube")
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if material is None or cube is None or cube.type != "MESH" or not material.use_nodes:
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raise RuntimeError("MATERIAL_INVALID: material fixture is missing")
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principled = material.node_tree.nodes.get("Principled BSDF")
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if principled is None:
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raise RuntimeError("MATERIAL_INVALID: Principled BSDF is missing")
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uv_layer = cube.data.uv_layers.active
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if uv_layer is None:
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raise RuntimeError("MATERIAL_INVALID: active UV layer is missing")
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uv_values = [rounded(value) for loop in uv_layer.data for value in loop.uv]
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return {
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"materialId": "material:" + material.name,
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"materialName": material.name,
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"baseColor": [rounded(value) for value in principled.inputs["Base Color"].default_value],
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"roughness": rounded(principled.inputs["Roughness"].default_value),
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"metallic": rounded(principled.inputs["Metallic"].default_value),
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"ior": rounded(principled.inputs["IOR"].default_value),
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"nodeTypes": sorted(node.bl_idname for node in material.node_tree.nodes),
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"unsupportedNode": "ShaderNodeTexNoise" in [node.bl_idname for node in material.node_tree.nodes],
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"uvLayerNames": [layer.name for layer in cube.data.uv_layers],
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"activeUVMap": uv_layer.name,
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"uvHash": hashlib.sha256(json.dumps(uv_values, separators=(",", ":")).encode()).hexdigest(),
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"uvValueCount": len(uv_values),
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}
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def main():
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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-wbv2-p3-001-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="wbv2-p3-001-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_INVALID: desktop save/reopen drift: {before} != {after}")
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report = {
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"schemaVersion": 1,
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"task": "WBV2-P3-001",
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"operation": "MATERIAL_PBR_UV_DESKTOP",
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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("wbv2-p3-001-desktop-ok material=%s uv=%s unsupported=retained saveReopen=exact" % (after["materialId"], after["activeUVMap"]))
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if __name__ == "__main__":
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main()
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