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guardedalloc optimizations were not entirely thread safe for mmap.
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the Cubic falloff, see here for details.
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#Subsurface_Scattering
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* Some fixes for OpenCL, was broken after recent changes.
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* Added a new sky model by Hosek and Wilkie: "An Analytic Model for Full Spectral Sky-Dome Radiance" http://cgg.mff.cuni.cz/projects/SkylightModelling/
Example render:
http://archive.dingto.org/2013/blender/code/new_sky_model.png
Documentation:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Textures#Sky_Texture
Details:
* User can choose between the older Preetham and the new Hosek / Wilkie model via a dropdown. For older files, backwards compatibility is preserved. When we add a new Sky texture, it defaults to the new model though.
* For the new model, you can specify the ground albedo (see documentation for details).
* Turbidity now has a UI soft range between 1 and 10, higher values (up to 30) are still possible, but can result in weird colors or black.
* Removed the limitation of 1 sky texture per SVM stack. (Patch by Lukas Tönne, thanks!)
Thanks to Brecht for code review and some help!
This is part of my GSoC 2013 project, SVN merge of r59214, r59220, r59251 and r59601.
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* Rename test to standalone.
Note: New CMAKE flag is WITH_CYCLES_STANDALONE.
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rendering too bright.
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new cubic and gaussian falloff. Like the branched path tracer, this will now
shade all intersection points instead of using one at random.
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* Fix Cycles using wrong AA sample values, after integrator renaming.
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sampling and subsurface scattering.
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Notes:
* Made those edits by full checking of py files, so I should have spoted most needed edits, yet it remains quite probable I missed a few ones, we'll fix if/when someone notice it...
* Also made some cleanup "on the road"!
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property name back so we keep compatibility.
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and "Branched Path Tracing", to try to make it more clear that this is not
related to progressive refinement, non-progressive was always a bad name anyway.
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* Some style tweaks for hair code.
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* Do not show Total Samples print for Progressive, when Square Samples are disabled. In this case it's obvious even without the print. :)
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* Add a "Total Samples" info at the bottom of the panel.
This makes understanding the Non-Progressive integrator easier, as it displays how many samples are used for the different ray types.
* Rename Squared Samples to Square samples, to indicate that the action is not already done. The new Total Samples info should make this easier to understand now as well. Also added back for Progressive integrator, for consistency.
Screenshot:
http://www.pasteall.org/pic/show.php?id=57980
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Campbell,
and a coverity warning about use of uninitialized variables with OSL.
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* Remove unused hair presets enum.
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The reason of this is because PATH_MAX is not guaranteed
to be defined on all platforms and Hurd doesn't define it.
So either we need to support arbitrary long file path or
we need to define own maximum path length.
The rule here would be:
- If it's not big trouble to support arbitrary long paths
(i.e. in ghost by using std::string instead of char*)
then arbitrary long path shall be implemented.
- For other cases to use PATH_MAX please include BLI_fileops.h
which takes care of making sure PATH_MAX is defined.
Additional change: get rid of own changes made yesterday
which were supposed to make storage.c work fine in cases
PATH_MAX is not define, but on the second though it lead
to unneeded complication of the code.
Thanks Campbell for review!
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For now assume sizeof(int) == 4 for all supported platforms, could be
changed in the future.
Added an assert to functions which depends on this this, so we'll
easily notice bad things happening.
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keyframes
These are not animatable! Note this is the case of most (all?) render settings, maybe we should go over both Cycles and internal ones, there are still quite a bunch of them that are marked as animatable... :/
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Solves compilation issues on Win and OSX
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svn merge -r59180:59181 ^/branches/soc-2013-depsgraph_mt
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- Re-arrange locks, so no actual memory allocation
(which is relatively slow) happens from inside
the lock. operation system will take care of locks
which might be needed there on it's own.
- Use spin lock instead of mutex, since it's just
list operations happens from inside lock, no need
in mutex here.
- Use atomic operations for memory in use and total
used blocks counters.
This makes guarded allocator almost the same speed
as non-guarded one in files from Tube project.
There're still MemHead/MemTail overhead which might
be bad for CPU cache utilization
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Not currently used, but needed for some further changes
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guarded alloc.
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svn merge -r58788:58789 ^/branches/soc-2013-depsgraph_mt
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* Fix 16 byte alignment for constant hair kernel data.
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* OSL rendered Black with Compatible Fallof option, fixed.
Note: OSL uses compatible scattering when "Compatible" or "Bicubic" is selected. I guess compatible will be removed later? If not we need to fix this properly.
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More information in this post:
http://code.blender.org/
Thanks to all contributes for giving their permission!
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New features:
* Bump mapping now works with SSS
* Texture Blur factor for SSS, see the documentation for details:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#Subsurface_Scattering
Work in progress for feedback:
Initial implementation of the "BSSRDF Importance Sampling" paper, which uses
a different importance sampling method. It gives better quality results in
many ways, with the availability of both Cubic and Gaussian falloff functions,
but also tends to be more noisy when using the progressive integrator and does
not give great results with some geometry. It works quite well for the
non-progressive integrator and is often less noisy there.
This code may still change a lot, so unless you're testing it may be best to
stick to the Compatible falloff function.
Skin test render and file that takes advantage of the gaussian falloff:
http://www.pasteall.org/pic/show.php?id=57661
http://www.pasteall.org/pic/show.php?id=57662
http://www.pasteall.org/blend/23501
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- Removed the cycles subdivision and interpolation of hairkeys.
- Removed the parent settings.
- Removed all of the advanced settings and presets.
- This simplifies the UI to a few settings for the primitive type and a shape mode.
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* Replaced the Preetham model with the newer Hosek / Wilkie model:
"An Analytic Model for Full Spectral Sky-Dome Radiance" http://cgg.mff.cuni.cz/projects/SkylightModelling/
* We use the sample code data, which comes with the paper, but removed some unnecessary parts, we only need the xyz version.
* New "Albedo" UI paraemeter, to control the ground albedo (between 0 and 1).
* Works with SVM only atm (CPU and CUDA).
Example render:
http://www.pasteall.org/pic/show.php?id=57635
ToDo / Open Questions:
* OSL still uses the old model, will be done later. In the meantime it's useful to compare the two models this way.
* The new model needs a much weaker Strength value (0.01), otherwise it's white. Can this be fixed?
* Code cleanup.
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* Added a new panel "Settings" to the object tab.
* Motion blur can now be enabled/disabled on a per object basis, so we can disable motion blur for certain objects.
* Also added some code for the Motion Multiplier, to weaken/strengthen the motion effect per object, but that is still disabled and hidden from the UI.
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This is useful for benchmark tests, to make CPU cache
utilization as good as we could with current design.
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Now sounds that stopped playing but are still kept in the device can be differentiated from paused sounds with this state.
This should also fix the performance issues mentioned in [#36466] End of SequencerEntrys not set correctly.
Please test if sound pausing, resuming and stopping works fine in the BGE and sequencer, my tests all worked fine, but there might be a use case that needs some fixing.
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