diff options
author | Kévin Dietrich <kevin.dietrich@mailoo.org> | 2021-01-22 17:01:26 +0300 |
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committer | Kévin Dietrich <kevin.dietrich@mailoo.org> | 2021-01-22 18:08:25 +0300 |
commit | bbe6d44928235cd4a5cfbeaf1a1de78ed861bb92 (patch) | |
tree | c3a8653dfdf38029caebfd9978ea4644535bae3d /intern/cycles/render/image.h | |
parent | 131a758b6f88a2be816e9351d216bcfb9c965c4b (diff) |
Cycles: optimize device updates
This optimizes device updates (during user edits or frame changes in
the viewport) by avoiding unnecessary computations. To achieve this,
we use a combination of the sockets' update flags as well as some new
flags passed to the various managers when tagging for an update to tell
exactly what the tagging is for (e.g. shader was modified, object was
removed, etc.).
Besides avoiding recomputations, we also avoid resending to the devices
unmodified data arrays, thus reducing bandwidth usage. For OptiX and
Embree, BVH packing was also multithreaded.
The performance improvements may vary depending on the used device (CPU
or GPU), and the content of the scene. Simple scenes (e.g. with no adaptive
subdivision or volumes) rendered using OptiX will benefit from this work
the most.
On average, for a variety of animated scenes, this gives a 3x speedup.
Reviewed By: #cycles, brecht
Maniphest Tasks: T79174
Differential Revision: https://developer.blender.org/D9555
Diffstat (limited to 'intern/cycles/render/image.h')
-rw-r--r-- | intern/cycles/render/image.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/intern/cycles/render/image.h b/intern/cycles/render/image.h index 6ac1db9ed63..c802521db56 100644 --- a/intern/cycles/render/image.h +++ b/intern/cycles/render/image.h @@ -189,7 +189,9 @@ class ImageManager { void collect_statistics(RenderStats *stats); - bool need_update; + void tag_update(); + + bool need_update() const; struct Image { ImageParams params; @@ -209,6 +211,7 @@ class ImageManager { }; private: + bool need_update_; bool has_half_images; thread_mutex device_mutex; |