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Note that Cycles currently only supports tessellated triangle/quad
meshes. Alembic PolyMesh generally has ngons, so external tessellation
is required until cycles gets a proper tessellation implementation of
its own.
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standalone.
The cycles XML files now can refer to Alembic (.abc) files. This will
call the default alembic reader to read in scene data. Currently it
simply prints the Alembic file structure.
Eventually a proper schema needs to be defined for both xml and abc.
Also care has to be taken to handle potential conflicts between settings
both within xml/abc and between them.
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This adds Alembic to the standalone application version of cycles.
Files can be specified as XML or Alembic, or use automatic detection
based on the filename extension.
Currently the Alembic reader just dumps the file structure to stdout
as a test.
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the GUI.
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include path instead of the boost one.
For explanation see http://stackoverflow.com/questions/3973659/c-unordered-map-compiling-issue-with-g
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an enum toggle.
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If a cache is read-enabled cycles will now use the cached mesh data
instead of dupli results.
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out from local functions)
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Reported by Antony Riakiotakis. The problem was the seeking code.
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Issue was caused by accident in c8a9a56 which not only disabled glossy
reflection if Glossy visibility is disabled, but also Diffuse reflection.
Quite safe and should go to final release branch.
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Issue was caused by cycles in shader graph confusing it's
simplification stage. Now we're ignoring links which are
marked as invalid from blender side so we don't run into
such cycles and keep graph code simple.
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Issue was introduced in 01ee21f where i didn't notice *_setup()
function only doing partial initialization, and some of parameters
are expected to be initialized by callee function.
This was hitting only some setups, so tests with benchmark scenes
didn't unleash issues. Now it should all be fine.
This is to go to the 2.74 branch and we actually might re-AHOY.
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NudelZ on irc, thanks!
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Need to match convention and sum up to 1.0 (previous set had a minor
10^(-10) overflow) Thanks to Campbell for taking notice.
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Fix T44007: Cycles Volumetrics: block artifacts with overlapping volumes
The issue was caused by uninitialized parameters of some closures, which
lead to unpredictable behavior of shader_merge_closures().
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dragndrop, backport to 2.74
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Could happen when assignment happens to self during sorting.
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A new checkbox "High quality" is provided in camera settings to enable
this. This creates a depth of field that is much closer to the rendered
result and even supports aperture blades in the effect, but it's more
expensive too. There are optimizations to do here since the technique is
very fill rate heavy.
People, be careful, this -can- lock up your screen if depth of field
blurring is too extreme.
Technical details:
This uses geometry shaders + instancing and is an adaptation of
techniques gathered from
http://bartwronski.com/2014/04/07/bokeh-depth-of-field-going-insane-
http://advances.realtimerendering.com/s2011/SousaSchulzKazyan%20-
%20in%20Real-Time%20Rendering%20Course).ppt
TODOs:
* Support dithering to minimize banding.
* Optimize fill rate in geometry shader.
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Optionally use systems eigen3 library.
T41989 by @hasufell with edits
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Bump result was passed to set_normal node and then set_node was connected
to all unconnected Normal inputs, including the one from original Bump
node, causing cycles.
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calculation.
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Don’t need all of Cocoa, or any of Carbon here.
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For a detailed bug explanation see the comments in the report.
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Typo in task start row calculation.
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The purpose of this change is to add extra possibility to render engines and
export scripts to reduce peak memory footprint during their operation.
This new argument should be used with care since it'll leave mesh in not really
compatible with blender format, but it's ok to be used on temp meshes.
Unfortunately, it's hard to get scene where it'll show huge benefit because
in my tests with cycles peak memory is reached in MEM_printmemlist_stats().
However, in the file with sintel dragon it gives around 1gig of memory benefit
after removing the polys which would allow other heavy to compute stuff such as
hair (or even pointiness calculation) to not be a peak memory usage.
In any case, this change is nice to have IMO, and only means more parts of
scene export code should be optimized memory-wise.
Reviewers: campbellbarton
Differential Revision: https://developer.blender.org/D1125
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Issue this commit is addressed to is that particle system and particle modifier
will contain caches once derived mesh was requested and this cached data will
never be freed.
This could easily lead to unwanted memory peaks during synchronization stage
of rendering.
The idea is to have RNA function in object which would free caches which can't
be freed otherwise. This function is not intended to deal with derived final
since it might be used by other objects (for example by object with boolean
modifier).
This cache freeing is only happening in the background rendering and locked
interface rendering.
From quick tests with victor file this change reduces peak memory usage by
command line rendering by around 6% (1780MB vs. 1883MB). For rendering from
the interface it's about 12% (1763MB vs. 1998MB).
Reviewers: campbellbarton, lukastoenne
Differential Revision: https://developer.blender.org/D1121
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This commit makes some preliminary fixes and tweaks aimed to make blender
compilable with C++11 feature set. This includes:
- Build system attribute to enable C++11 featureset.
It's for sure default OFF, but easy to enable to have a play around with
it and make sure all the stuff is compilable before we go C++11 for real.
- Changes in Compositor to use non-named cl_int structure fields.
This is because __STRICT_ANSI__ is defined by default by GCC and OpenCL
does not use named fields in this case.
- Changes to TYPE_CHECK() related on lack of typeof() in C++11
This uses decltype() instead with some trickery to make sure returned type
is not a reference.
- Changes for auto_ptr in Freestyle
This actually conditionally switches between auto_ptr and unique_ptr since
auto_ptr is deprecated in C++11. Seems to be not strictly needed but still
nice to be ready for such an update anyway/
This all based on changes form depsgraph_refactor branch apart from the weird
changes which were made in order to support MinGW compilation. Those parts of
change would need to be carefully reviewed again after official move to gcc49
in MinGW.
Tested on Linux with GCC-4.7 and Clang-3.5, other platforms are not tested and
likely needs some more tweaks.
Reviewers: campbellbarton, juicyfruit, mont29, lukastoenne, psy-fi, kjym3
Differential Revision: https://developer.blender.org/D1089
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Two things:
- Use intrinsics for clz/ctz (ctz is implemented via ffs()).
- Use faster sqrt() function which precision is enough for
integer values.
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huge plane"
The fix was really flacky, in terms during speed benchmarks i had
abort() in the fallback block to be sure it never runs in production
scenes, but that affected on the optimization as well. Without this
abort there's quite bad slowdown of 5-7% on the renders even tho
the Pleucker fallback was never run.
This is all weird and for now reverting the change which affects on
all the production scenes and will look into alternative fixes for
the original issue with precision loss on huge planes.
This reverts commit 9489205c5c0b9b432d02be4a3d0d15fc62ee6cb9.
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Was missing do-versions code after rotation order change in Cycles.
This is a regression and to be ported to the final release branch.
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This merges consecutive empty steps in the decoupled record function,
which can lead to fewer iterations in the scatter functions.
Only helps slightly though (1%), but doesn't hurt to have this.
Differential Revision: https://developer.blender.org/D873
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Use multiple threads for building the MIS table, if the
resolution is higher than 512.
Also replace division by cdf_total, with a inverse multiplication by
cdf_total_inv. This gives further speedup.
On my Macbook (8 CPU threads) this improves the time to build the table:
Resolution 4096: From 0.16s to 0.03s
Resolution 8096: From 0.61s to 0.11s
This especially helps to reduce the scene update time, when tweaking world
shader while viewport rendering is running.
Patch by Sergey and myself.
Differential Revision: https://developer.blender.org/D1159
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only instantiate the argument once,
so MEM_SAFE_FREE(array[i++]), won't cause incorrect behavior.
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The issue was caused by mismatch in how aligned triangles storage was
filled in during BVH construction and how it was used during rendering.
Basically, i was leaving uninitialized storage for triangles when
there was deformation motion blur detected for the mesh. Was likely
some sort of optimization, but in fact it's still possible that regular
triangles would be needed for rendering.
So now we're storing aligned storage for all triangle primitives and
only skipping motion triangles (the deformation motion blur flag from
mesh is now ignored).
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Reporting mesh name is not really useful, since it's name does not
any relation with the original object/mesh names.
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wrappers.
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The issue was caused by numerical instability whrn having ray origin close to a huge
triangle, which could have aused bad ray distance check.
Watertight Woop intersection isn't really addressing such cases, it's dealing with
small triangles far away from the ray origin instead, so it's a bit tricky yo make
it working reliably.
While we're quite close to the release it's safer to do check in Pleaucker coordinates
if ray close to a huge triangle. Likely this additional check combined with some other
tweaks to the code doesn't cause measurable slowdown in the scenes tested here.
After the release we can play a bit more with this code in order to make it more
stable without Pleucker fallback.
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