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This is also an important mathematical operation that can be folded
if it is known that one argument is a certain constant. For colors
the operation is provided as a Gamma node.
The SVM Gamma node needs a small fix to make it follow the 0 ^ 0 == 1
rule, same as the Power node, or the Gamma node itself in OSL mode.
Reviewers: #cycles
Differential Revision: https://developer.blender.org/D2263
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The if branches were reordered when the original patch was
committed, which broke the implicit non-NULL guarantee on link.
To prevent re-occurrence, add a couple of unit tests.
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structs"
Using unit tests is a wrong way to control static behavior of the
application. They should only be used for checking dynamic behavior,
all the rest is easily controllable at compile time.
Doing tests at ocmpile time are actually more robust approach since
we don't have strict policy of runnign unit tests before accepting
any change.
Proper alignment control is coming shortly.
This reverts commit 7c3a06c34918567e6b0ab67bded60725ff63073b.
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To make the number more meaningful, also skip deduplicating
obviously unused nodes with no outgoing links.
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As a result of other folding simplifications it may happen that
two type conversion nodes end up directly connected. In some
cases it may be possible to then remove both. A realistic case
might be an optimized out Mix RGB node used to blend vectors.
It seems it's safe to optimize when B is a float3 type
(color, vector), and A is float3 or float.
Reviewers: #cycles, sergey
Reviewed By: #cycles, sergey
Subscribers: sergey
Differential Revision: https://developer.blender.org/D2134
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It's easy to connect a simple value to output without forcing
conversion to color by using the Strength socket of Emission.
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Code coverage of different combinations of secondary conditions
is obviously not complete because there are so many of them, but
all main rules should be there.
The reason for CORRECT vs INVALID is that both words have the same
number of characters so calls line up, but look quite different.
Reviewers: #cycles, sergey
Reviewed By: #cycles, sergey
Subscribers: dingto, sergey, brecht
Differential Revision: https://developer.blender.org/D2130
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This commit adds some easy to use way to check whether the graph
was properly optimized. The idea is based on using mock glog sync
which keeps track on all messages and expects specific log message
to appear in the logging.
This means each optimization step should report that it optimized
something (specifying what exactly was optimized) and what was used
for optimization.
There's also some ease-ish way to define shader networks which we
might want to make a bit more global and available for all tests
in the future.
For now only RGBToBW node is covered as an example, really hope
to get help from active guys in the community to finish covering
all existing optimization cases. Ready to fix any possible issues
with builder when needed tho :)
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When the Moon is full it was possible to have a dead-lock in task
scheduler's exit() method.
Similar problem was fixed in Blender's task scheduler 3 years ago
in bae2a2c.
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This is an initial move to have unittests to at least cover
utility functions, which then could be extended further to
test such areas as shader optimization and such.
Currently only based on initial "infrastructure" layout and
writing tests needed to test the no-boost patch.
Note: This patch starts to use "<dir>/<header>.h" notation
for the include statements which i just got used to do in
other projects. Something what would be cool to use globally
in the code eventually.
Reviewers: dingto, juicyfruit, lukasstockner97, brecht
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D1770
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