This patch improves the single core performance of the lattice deform.
1. Prefetching deform vert during initialization. This data is constant for
each innerloop. This reduces the complexity of the inner loop what makes
more CPU resources free for other optimizations.
2. Prefetching the Lattice instance. It was constant. Although performance
wise this isn't noticeable it is always good to free some space in the
branch prediction tables.
3. Remove branching in all loops by not exiting when the effect of the loop
isn't there. The checks in the inner loops detected if this loop didn't
have any effect on the final result and then continue to the next loop.
This made the branch prediction unpredictable and a lot of mis
predictions were done. For smaller inner loops it is always better
to remove unpredictable if statements by using branchless code patterns.
4. Use SSE2 instruction when available.
This gives 50% performance increase measured on a
Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with GCC 9.3.
Also check other compilers.
Before:
```
performance_no_dvert_10000 (4 ms)
performance_no_dvert_100000 (30 ms)
performance_no_dvert_1000000 (268 ms)
performance_no_dvert_10000000 (2637 ms)
```
After:
```
performance_no_dvert_10000 (3 ms)
performance_no_dvert_100000 (21 ms)
performance_no_dvert_1000000 (180 ms)
performance_no_dvert_10000000 (1756 ms)
```
Reviewed By: Campbell Barton
Differential Revision: https://developer.blender.org/D9087
This looks like a optimizer bug where it makes wrong assumptions.
The code inside lib_id_delete:264 on rBafd13710b897cc1c11b
`for (id = last_remapped_id->next; id; id = id->next) {..}`
is not executed in release/relwithdebinfo builds.
This can be "fixed" by several ways:
- Adding a line that prints the `last_remapped_id->name` right before
the said for-loop starts.
- Turning off optimization for the whole function `id_delete`:
`#pragma clang optimize off/on` Ray Molenkamp
- Marking `last_remapped_id` volatile. Julian Eisel
- Marking `tagged_deleted_ids` volatile. But it adds a warning when
calling `BLI_addtail`: discards volatile qualifier. Discovered by
accident.
Fix T81077
Reviewed By: mont29
Maniphest Tasks: T81077
Differential Revision: https://developer.blender.org/D9315
This commit uses continue in loops and returning early to reduce
indentation in long functions, only where this results in a significant
improvement. Also includes a few LISTBASE_FOREACH macros.
The solo mode was skipping the layer creation data and the loop of masks expect to have all layers in the array or the loop crash.
The solution is just create the layer array data for the layer, but don't draw any stroke.
From the backtrace it looks like in some cases file save (which triggers
a general override updates) is done before other code has a chance to
re-generate pose data, leading to rna accessing freed memory.
I was never able to reproduce that here, so this is a tentative fix in
master, if it proves to be working for the studio it will be
cherry-picked into 2.91 release branch later.
It was rather a huge chunk of code, which started to become
more harder to maintain with the transition to OpenSubdiv based
implementation. Because of this transition, the compatibility was
also rather on a poor side.
Remove compatibility support for pre-2.50.9 multires.
Ref T77107
Reviewed By: brecht, mont29
Differential Revision: https://developer.blender.org/D9238
Selecting an F-Curve handle caused an assertion as well as treating
the key-frame as inactive.
Allow active the keyframe to be active when it's handle is selected,
as is done with bezier curves.
These changes should result in more readable and undestandable code,
especially where while loops were use instead of for loops. They are
not comprehensive, and I skipped wherever the change was not obvious.
The new preset I made for 2.91 is way more controllable with lower
strength values and does not have the accumulate bug, but until the
brush management is in place to ship multiple versions of the brush,
probably most people expect something closer to the old version to be
the default.
Reviewed By: sergey
Maniphest Tasks: T81901
Differential Revision: https://developer.blender.org/D9289
Being able to adjust the distance between fluid and obstacles comes in handy when trying to achieve a fluid motion over inclined obstacles.
Depending on the slope of such obstacles, already small adjustments of this value can help when particles stick to obstacle surfaces (i.e. make particles not stick to obstacles).
In comments made by a tester on rB17b89f6dacba007bf, it seems that baking
of the spray maps would be useful. This commit adds that capability. Both
the spray map and its inverse are baked out in this change, for maximum
convenience and to avoid assuming what the user wants.
Differential Revision: https://developer.blender.org/D8470
The design for how we approach the "Everything Nodes" project
has changed. We will focus on a different part of the project initially.
While future me will likely refer back to some of the code I remove here,
there is no point in keeping this code around in master currently.
It would just confuse other developers working on the project.
This does not remove the simulation modifier and data block. Those are
just cleaned up, so that the boilerplate code can be reused in the future.
This changes how the simplify volumes setting works. Before, it only
affeted viewport rendering. This was an issue, because all internal
computations would still have to happen on the high resolution volumes.
With this patch, the simplify setting already affects file loading and
procedural generation of volumes.
Rendering does not have to care about the simplify option anymore,
it just gets the correct simplified version from the depsgraph.
Reviewers: brecht
Differential Revision: https://developer.blender.org/D9176
Corrects incorrect usages of the fragment 'apart of' when 'a part of' was required.
Differential Revision: https://developer.blender.org/D9245
Reviewed by Campbell Barton
Corrects incorrect usages of the word 'loose' when 'lose' was required.
Differential Revision: https://developer.blender.org/D9243
Reviewed by Campbell Barton
