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Geometry Nodes: Optimize joining of instances #113886

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Hans Goudey merged 3 commits from HooglyBoogly/blender:instances-join-performance into main 2023-10-19 10:24:09 +02:00
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Hans Goudey commented 2023-10-18 14:18:14 +02:00
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Restore lost performance from removing reserve in ff4d5b6f04
in a better way. First build offsets so we know where in the result the
source data should go, then copy the data in parallel.

Joining geometries containing 1 million instances each took 194 ms
before the change and only 15.6 ms afterwards.

Restore lost performance from removing `reserve` in ff4d5b6f04d42a3b222a in a better way. First build offsets so we know where in the result the source data should go, then copy the data in parallel. Joining geometries containing 1 million instances each took 194 ms before the change and only 15.6 ms afterwards.
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Hans Goudey added 1 commit 2023-10-18 14:18:28 +02:00
152021da5a Geometry Nodes: Optimize joining of instances 
Restore lost performance from removing `reserve` in ff4d5b6f04
in a better way. First build offsets so we know where in the result the
source data should go, then copy the data in parallel.
Hans Goudey added the
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Geometry Nodes
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Hans Goudey added this to the Nodes & Physics project 2023-10-18 14:19:33 +02:00
Hans Goudey requested review from Jacques Lucke 2023-10-18 14:19:40 +02:00
Jacques Lucke approved these changes 2023-10-18 17:54:08 +02:00
Jacques Lucke left a comment
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Please test it once more in a debug build and also run the buildbot on the change before committing.

Please test it once more in a debug build and also run the buildbot on the change before committing.
source/blender/geometry/intern/join_geometries.cc Outdated
@ -97,19 +99,22 @@ static void join_attributes(const Span<const GeometryComponent *> src_components
static void join_instances(const Span<const GeometryComponent *> src_components,
GeometrySet &result)
{
Array<int> offsets_data(src_components.size());
Jacques Lucke commented 2023-10-18 17:53:31 +02:00
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Off-by-one.

Off-by-one.
HooglyBoogly marked this conversation as resolved
Hans Goudey added 2 commits 2023-10-19 09:27:56 +02:00
buildbot/vexp-code-patch-coordinator Build done. Details
14469b2603 Fix wrong offsets array size
Hans Goudey commented 2023-10-19 09:28:03 +02:00
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@blender-bot build

@blender-bot build
Hans Goudey merged commit a5eaf6698a into main 2023-10-19 10:24:09 +02:00
Hans Goudey deleted branch instances-join-performance 2023-10-19 10:24:11 +02:00
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