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# generat3D - evaluate Daz DSON scenes and write .dbz files
# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import contextlib
import io
import json
import tempfile
import unittest
from pathlib import Path
from generat3d import Error
from generat3d.evaluate import evaluate
from generat3d.library import Library
from generat3d.scene import load
DATA = Path(__file__).parent / "data"
class EvaluateTest(unittest.TestCase):
def test_synthetic_scene(self):
with contextlib.redirect_stderr(io.StringIO()):
scene = load(DATA / "scene.duf", Library([DATA / "lib"]))
verts, rest = evaluate(scene)
self.assertEqual(verts.tolist(), [[-0.5, 0, 0], [1.5, 2, 0], [0, 1, 0]])
self.assertEqual(rest["hip"]["center_point"], [0, 7, 0])
self.assertEqual(rest["hip"]["end_point"], [0, 8, 0])
self.assertEqual(rest["Fig"]["end_point"], [0, 10, 0])
self.assertEqual(scene.figure.verts.tolist()[0], [0, 0, 0]) # base untouched
def test_overflow_is_error(self):
with tempfile.TemporaryDirectory() as d:
root = Path(d) / "extra"
p = root / "data/Test/Fig/Morphs/Test/Big.dsf"
p.parent.mkdir(parents=True)
p.write_text(json.dumps({"modifier_library": [{
"id": "Big", "parent": "/data/Test/Fig/Fig.dsf#Fig",
"channel": {"id": "value", "value": 1e300},
"morph": {"vertex_count": 3, "deltas": {"values": [[0, 1e300, 0, 0]]}}}]}))
with contextlib.redirect_stderr(io.StringIO()):
scene = load(DATA / "scene.duf", Library([DATA / "lib", root]))
with self.assertRaisesRegex(Error, "non-finite"):
evaluate(scene)
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