Add Chromium-only Blender WebEngine parity work

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

@@ -0,0 +1,43 @@
+# SPDX-FileCopyrightText: 2008-2023 Blender Authors
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#  Author   : Stephane Grabli
+#  Date     : 04/08/2005
+#  Purpose  : This style module selects the lines that
+#             are connected (in the image) to a specific
+#             object and trims them in order to produce
+#             a haloing effect around the target shape
+
+from freestyle.chainingiterators import ChainSilhouetteIterator
+from freestyle.predicates import (
+    AndUP1D,
+    NotUP1D,
+    QuantitativeInvisibilityUP1D,
+    TrueUP1D,
+    pyIsOccludedByUP1D,
+)
+from freestyle.shaders import (
+    IncreasingColorShader,
+    IncreasingThicknessShader,
+    SamplingShader,
+    TipRemoverShader,
+    pyTVertexRemoverShader,
+)
+from freestyle.types import Id, Operators
+
+
+# id corresponds to the id of the target object
+# (accessed by SHIFT+click)
+id = Id(3, 0)
+upred = AndUP1D(QuantitativeInvisibilityUP1D(0), pyIsOccludedByUP1D(id))
+Operators.select(upred)
+Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
+shaders_list = [
+    IncreasingThicknessShader(3, 5),
+    IncreasingColorShader(1, 0, 0, 1, 0, 1, 0, 1),
+    SamplingShader(1.0),
+    pyTVertexRemoverShader(),
+    TipRemoverShader(3.0),
+]
+Operators.create(TrueUP1D(), shaders_list)