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blender-archive/release/scripts/freestyle/styles/occluded_by_specific_object.py
Campbell Barton c434782e3a File headers: SPDX License migration
Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069
2022-02-11 09:14:36 +11:00

36 lines
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Python

# SPDX-License-Identifier: GPL-2.0-or-later
# Filename : occluded_by_specific_object.py
# Author : Stephane Grabli
# Date : 04/08/2005
# Purpose : Draws only the lines that are occluded by a given object
from freestyle.chainingiterators import ChainSilhouetteIterator
from freestyle.predicates import (
AndUP1D,
NotUP1D,
QuantitativeInvisibilityUP1D,
TrueUP1D,
pyIsInOccludersListUP1D,
)
from freestyle.shaders import (
ConstantColorShader,
ConstantThicknessShader,
SamplingShader,
)
from freestyle.types import Id, Operators
# the id of the occluder (use SHIFT+click on the ViewMap to
# retrieve ids)
id = Id(3, 0)
upred = AndUP1D(NotUP1D(QuantitativeInvisibilityUP1D(0)), pyIsInOccludersListUP1D(id))
Operators.select(upred)
Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
shaders_list = [
SamplingShader(5),
ConstantThicknessShader(3),
ConstantColorShader(0.3, 0.3, 0.3, 1),
]
Operators.create(TrueUP1D(), shaders_list)