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This way we can extend it much easier.
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This commit effectively reverts fix T45702 done in 067fe2719a99.
Reasoning:
- Blender Internal is being replaced with Eevee, and will be removed entirely
rather soon.
- All render engines are planned to have own depsgraph, so such threading
conflicts should no longer be an issue.
- We don't want to spend time on porting workarounds for EOL things to a new
design. Less code -- faster the work :)
- If such notifications will end up needed for some other cases, we would
need to re-implement this a more proper depsgraph tagging/flushing and make
it to work with all copy-on-write datablocks and everything.
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There might be much more logic involved there, also we might not know proper
evaluated CoW pointer there yet. So we leave this to dependency graph to
decide what exactly to do here.
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No need to print status for basic & reliable operations,
build systems can output operations they run if needed,
or debug output changed in the source if developers are debugging.
Nice for ninja, so any printed text hints at a problem to fix.
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User count was wrong for newly created files. We increase/decrease user count
when we link/delete objects from a SceneCollection.
So we don't want to leave user count of 1 after calling BKE_libblock_alloc in
BKE_object_add_only_object().
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Neither me nor Campbell could redo the issue, lets get rid of this workaround
and fix it properly if still needed.
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Makes it more clear why and what is being ignored.
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DoF disabled
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The title says it all actually, controlled with DoF check box next to textured
solid check box.
Thanks Campbell for review!
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This is fully unreadable to have lots of boolean arguments scattered across the
whole argument list. What does `false, true, true` mean in terms of behavior?
Replace those with bitfield which has advantage of having more human readable
meaning.
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Support duplicating, switching workspaces too.
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Allows adjusting on-screen widgets even when a tool is selected.
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Conflicts:
source/blender/editors/mask/mask_draw.c
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`BKE_maskrasterize_buffer`!
So this deduplicates and simplifies code, yeah.
Also, as an odd bonus, new code seems slighly quicker than previous one
(about 5 to 10% quicker).
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Once again nothing much to say here, except that whole mask rendering
process from VSE is about 25% quicker now. ;)
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Pretty straightforward this time, we already have a single struct
pointer containing all needed data (or nearly).
And we gain about 10-15% speed on tracking! :)
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Two more 'not really useful' cases (OMP only shows some noticeable
speedup with above 1M elements, and since this is quick operation anyway
compared to even ather basic operators, gain is in the 1% area of total
processing time in best case).
So not worth parallelizing here, we'll gain much more on tackling heavy
operations. ;)
And BMesh is free from OMP now!
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Performances tests on this one are quite surprising actually...
Parallelized loop itself is at least 10 times quicker with new BLI_task
code than it was with OMP. And subdividing e.g. a heavy mesh with 3
levels of multires (whole process) takes 8 seconds with new code, while
10 seconds with OMP one. And cherry on top, BLI_task code only uses
about 50% of CPU load, while OMP one was at nearly 100%!
In fact, I suspect OMP code was not properly declaring outside vars,
generating a lot of uneeded locks.
Also, raised the minimum level of subdiv to enable parallelization,
tests here showed that we only start to get significant gain with subdiv
levels of 4, below single threaded one is quicker.
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Those three ones were actually giving no significant benefits, in fact
even slowing things down in one case compared to no parallelization at
all (in `BM_mesh_elem_table_ensure()`).
Point being, once more, parallelizing *very* small tasks (like index or
flag setting, etc.) is nearly never worth it.
Also note that we could not easlily use per-item parallel looping in
those three cases, since they are heavily relying on valid
loop-generated index (or are doing non-threadable things like allocation
from a mempool)...
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Don't operate on multiple boundaries at once,
instead keep collapsing from the first selected boundary.
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Previously outcome depended on order of edges,
now the longest boundary edges are rotated first,
then the faces connected edges.
This gives more predictable results, allowing regions containing
a vertex fan to be rotated onto the next vertex.
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activated immediately instead of upon LMB
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That was a nasty one, Debug build would never have any issue (even tried
with 64 threads!), but Release build would deadlock nearly immediately,
even with only 2 threads!
What happened here (I think) is that gcc optimizer would generate a
specific path endlessly looping when initial value of virtual_lock was
FLT_MAX, by-passing re-assignment from v_no[0] and the atomic cas
completely. Which would have been correct, should v_no[0] not have been
shared (and modified) by multiple threads. ;)
Idea of that (broken) for loop was to avoid completely calling the
atomic cas as long as v_no[0] was locked by some other thread, but...
Guess the avoided/missing memory barrier was the root of the issue here.
Lesson of the evening: Remember kids, do not trust your compiler to
understand all possible threading-related side effects, and be explicit
rather than elegant when using atomic ops!
Side-effect lesson: do check both release and debug builds when messing
with said atomic ops...
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Using atomic cas correctly is really hairy... ;)
In this case, the returned value from cas needs to validate *two*
conditions, it must not be FLT_MAX (which is our 'locked' value and
would mean another thread has already locked it), but it also must be
equal to previously stored value...
This means we need two steps per loop here, hence using a 'for' loop
instead of a 'while' one now.
Note that collisions are (as expected) very rare, less than 1 for 10k
typically, so did not catch the issue initially (also because I was
mostly working with release build to check on performances...).
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Previously the lighting of SSS material was not present in reflection probe or irradiance grid.
This does not compute the SSS correctly but at least output the corresponding irradiance power to the correct output.
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While this probably isn't the final solution we'll go with, it's nicer
as current one, which was basically broken. So consider this as
temporary solution.
It also allows testing how changing workspace changes mode & active
object, but only by having the workspaces use different view-layers.
Decided to remove WorkSpace.mode for now. If we need to bring it back,
we'll have to version patch it anyway.
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This option prevent from automatically blurring the albedo color applied to the SSS.
While this is great for preserving details it can bleed more light onto the nearby objects since the blurring will be done on pure "white" irradiance.
This issue is to be tackled in a separate commit.
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When setting background object, it might pull new objects in and those objects
will not have proper flags unless on_visible_update() was called afterwards.
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This reverts commit 90ff88646d4312823df0610168391ab5ad80675a.
Can not do this yet, if object is not part of graph yet it will not have entry
taq. Need some more generic solution here.
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