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Anim: Only sort FCurves that need it #119735

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Christoph Lendenfeld merged 2 commits from ChrisLend/blender:remake_transdata_selective into main 2024-03-21 15:11:29 +01:00
Conversation 1 Commits 2 Files Changed 1 +7 -13
Christoph Lendenfeld commented 2024-03-21 12:22:47 +01:00
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Before this PR the sorting function would receive all FCurves from the anim_data ListBase
and sort them + recalculate the handles.

Considering we are already checking IF an FCurve needs sorting we might as well use
that and limit the sorting to FCurves that actually need it.
Doing that gives the following performance uplift.

- Before After
Moving 1 key only 109ms 0.72ms
Moving 1 key of each FCurve ~2000ms ~2000ms

As can be seen in the performance data, this greatly benefits the case of moving a single key, while not making it worse when moving keys on all FCurves.

Measurements of remake_graph_transdata using the following test file.
https://drive.google.com/file/d/11wQhuYmhCtQgjT4uJWORTwKlWit1irp2/view?usp=sharing
Imported and extended from: https://sites.google.com/a/cgspeed.com/cgspeed/motion-capture/the-motionbuilder-friendly-bvh-conversion-release-of-cmus-motion-capture-database

Before this PR the sorting function would receive all FCurves from the `anim_data` ListBase and sort them + recalculate the handles. Considering we are already checking IF an `FCurve` needs sorting we might as well use that and limit the sorting to FCurves that actually need it. Doing that gives the following performance uplift. | - | Before | After | | - | - | - | | Moving 1 key only | 109ms | 0.72ms | | Moving 1 key of each FCurve | ~2000ms | ~2000ms | As can be seen in the performance data, this greatly benefits the case of moving a single key, while not making it worse when moving keys on all FCurves. Measurements of `remake_graph_transdata` using the following test file. https://drive.google.com/file/d/11wQhuYmhCtQgjT4uJWORTwKlWit1irp2/view?usp=sharing Imported and extended from: https://sites.google.com/a/cgspeed.com/cgspeed/motion-capture/the-motionbuilder-friendly-bvh-conversion-release-of-cmus-motion-capture-database
Christoph Lendenfeld added the
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Christoph Lendenfeld added 1 commit 2024-03-21 12:22:52 +01:00
Hans Goudey reviewed 2024-03-21 13:25:56 +01:00
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Nice simple change here!

Nice simple change here!
source/blender/editors/transform/transform_convert_graph.cc Outdated
@ -981,3 +975,2 @@
/* Do resort and other updates? */
if (dosort) {
remake_graph_transdata(t, &anim_data);
if (unsorted_fcurves.size() != 0) {
Hans Goudey commented 2024-03-21 13:24:59 +01:00
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unsorted_fcurves.size() != 0 -> !unsorted_fcurves.is_empty()

`unsorted_fcurves.size() != 0` -> `!unsorted_fcurves.is_empty()`
Christoph Lendenfeld commented 2024-03-21 14:48:43 +01:00
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thanks Hans! fixed :)

thanks Hans! fixed :)
Sybren A. Stüvel reviewed 2024-03-21 14:04:52 +01:00
Sybren A. Stüvel left a comment
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Considering we are already checking IF an FCurve needs sorting we might as well use
that and limit the sorting to FCurves that actually need it.

😿 and here we have another one of those "Blender does WHAT?" moments. Yeah, skipping the sorting when you know you can skip the sorting, that sounds quite good.

Oh damn... and then we have test_time_fcurve(fcu) being called for every curve, even though it would sort them all anyway if even one needed sorting. Nice.

> Considering we are already checking IF an FCurve needs sorting we might as well use > that and limit the sorting to FCurves that actually need it. 😿 and here we have another one of those "Blender does WHAT?" moments. Yeah, skipping the sorting when you know you can skip the sorting, that sounds quite good. Oh damn... and then we have `test_time_fcurve(fcu)` being called for every curve, even though it would sort them all anyway if even one needed sorting. Nice.
Sybren A. Stüvel approved these changes 2024-03-21 14:05:28 +01:00
Sybren A. Stüvel left a comment
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Also the changes LGTM :)

Also the changes LGTM :)
Christoph Lendenfeld added 1 commit 2024-03-21 14:38:14 +01:00
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75d23f7cfc use is_empty
Christoph Lendenfeld commented 2024-03-21 14:38:40 +01:00
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@blender-bot build

@blender-bot build
Christoph Lendenfeld merged commit 6a55a126e9 into main 2024-03-21 15:11:29 +01:00
Christoph Lendenfeld deleted branch remake_transdata_selective 2024-03-21 15:11:31 +01:00
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