Add Chromium-only Blender WebEngine parity work

blender-5.2.0/scripts/freestyle/styles/invisible_lines.py

@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2008-2023 Blender Authors
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#  Author   : Stephane Grabli
+#  Date     : 04/08/2005
+#  Purpose  : Draws all lines whose Quantitative Invisibility
+#             is different from 0
+
+from freestyle.chainingiterators import ChainSilhouetteIterator
+from freestyle.predicates import (
+    NotUP1D,
+    QuantitativeInvisibilityUP1D,
+    TrueUP1D,
+)
+from freestyle.shaders import (
+    ConstantColorShader,
+    ConstantThicknessShader,
+    SamplingShader,
+)
+from freestyle.types import Operators
+
+
+upred = NotUP1D(QuantitativeInvisibilityUP1D(0))
+Operators.select(upred)
+Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
+shaders_list = [
+    SamplingShader(5.0),
+    ConstantThicknessShader(3.0),
+    ConstantColorShader(0.7, 0.7, 0.7),
+]
+Operators.create(TrueUP1D(), shaders_list)