Notes:
* Code in rendering and in game engine will still convert
tangents to a tessface representation. Added code that
takes care of tangent layer only, might be removed
when BGE and rendering goes full mlooptri mode.
* Baking should work discovered some dead code while
I was working on the patch, also tangents are broken
when baking from multires (also in master), but those
are separate issues that can be fixed later.
This should fix T45491 as well
This commit fixes issues with wrong socket type being added to the Cycles debug
pass compositor operation, which lead to crashes with non-value pass types.
This commit also reverts socket renaming thing because while it's was behaving
ok on runtime file reload might have loose the links which is annoying.
There was possible race condition in the point density sampling caused
by access to the same data in particle system from sampling thread and
sampling initialization.
Could have happened when two different point density textures were using
same particle system
This commit implements point density texture for Cycles shading nodes.
It's done via creating voxel texture at shader compilation time, Not
totally memory efficient, but avoids adding sampling code to kernel
(which keeps render time as low as possible), In the future this will
be compensated by using OpenVDB for more efficient storage of sparse
volume data.
Sampling of the voxel texture is happening at blender side and the
same code is used as for Blender Internal's renderer.
This texture is controlled by only object, particle system and radius.
Linear falloff is used and there's no turbulence. This is because
falloff is expected to happen using Curve Mapping node. Turbulence
will be done as a distortion on the input coordinate. It's already
possible to fake it using nose textures and in the future we can add
more proper turbulence distortion node, which then could also be used
for 2D texture mapping.
Particle color support is done by Lukas, thanks!
With this patch "Particle Info" node from Cycles works in GLSL and BI
Alexander (Blend4Web Team)
Reviewers: psy-fi
Note: moved particle info to object render instance instead of
shadeinput during review - Antony.
Differential Revision: https://developer.blender.org/D1313
Not sure it's totally correct solution, but seems reasonable because it's
possible dmcache is set to ISCHILD.
Someone more familiar with the particles code might want to revisit this :)
Quite straightforward implementation -- all the conversion magic is
happening in IMB_exr_write_channels() and remained changes are only
needed to pass information whether channels is to be converted to
half float or not.
Regular file output will use full-float for Z pass, which matches
behavior of the single layer EXR files. But when saving happens
with File Output node then all the passes are respecting half float
settings because it's not possible to distinguish whether we're
saving Z pass or not.
Reviewers: juicyfruit, campbellbarton
Reviewed By: campbellbarton
Subscribers: maxon, effstops, fsiddi
Differential Revision: https://developer.blender.org/D1353
This reverts commit ab417f31f4.
This workaround caused serious memory corruption issues which is not really acceptable
for the release. We'll be likely sticking to a more limited release when using freestyle
with saved buffers for until proper solution is implemented.
Conflicts:
source/blender/render/intern/source/pipeline.c
The issue was caused by render pipeline freeing render parts prior to finishing
exr file writing which resulted in unfinished parts not being written into the
file by save_empty_result_tiles().
As a temporary solution we do explicitly write unfinished parts as empty tiles
to the exr file prior to freeing parts.
Not ideal solution, but should work for the release.
TODO: We might want to refactor debug passes into PASS_DEBUG and some
debug_type (similar to Blender's side passes) to avoid issue of running
out of bits.
This way it is now possible to select which exact debug pass is to be used
by the render engine. Accessible from the Passes panel.
Currently it could only be one debug pass, in the future we can make menus
and image users smarter and support multiple passes of the same type.
Quite straightforward implementation, but still needs some work for the split
kernel. Includes both regular and split kernel implementation for that.
The pass is not exposed to the interface yet because it's currently not really
easy to have same pass listed in the menu multiple times.
For now we solve this for non-multiview renders by merging exr file back into
full render result prior to rendering freestyle strokes. Multiview case is
still to be supported tho.
T44869.
There are a couple of issues here:
* Code repeatedly calculated center of ready rendered parts even though
they would not change while the operation was done.
* Code would calculate distance of tiles from center multiple times
* Code would traverse all items, even the ones already sorted
* Traversal used linked lists which is quite slow.
Mitigated these by doing one pass for the center, a second to calculate
distances and a qsort at the end.
Should result in O (n * (log n + 2)) instead of O (n * (n * 2))
complexity, plus the number of repeated operations is much less as well.
This will fix exporting of metadata and importing for imbufs, but image
editor will not display these metadata since multilayer gets converted
to renderresult, which does not support metadata display yet.
This commit is more meant for external image editors/viewers.
