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
Could connect a pair of verts previously,
now connect all vertices along the path, running a second time closes the loop.
Can also be used for without faces to connect edges between selected points.
This is the core code for it, tools (datatransfer and modifier) will come in next commits).
RNA api is already there, though.
See the code for details, but basically, we define, for each 'smooth fan'
(which is a set of adjacent loops around a same vertex that are smooth, i.e. have a single same normal),
a 'loop normal space' (or lnor space), using auto-computed normal and relevant edges, and store
custom normal as two angular factors inside that space. This allows to have custom normals
'following' deformations of the geometry, and to only save two shorts per loop in new clnor CDLayer.
Normal manipulation (editing, mixing, interpolating, etc.) shall always happen with plain 3D vectors normals,
and be converted back into storage format at the end.
Clnor computation has also been threaded (at least for Mesh case, not for BMesh), since the process can
be rather heavy with high poly meshes.
Also, bumping subversion, and fix mess in 2.70 versioning code.
The issue was caused by the conflict between preview render which would set
R_NO_IMAGE_LOAD flag on the renderer and texture samplers called outside of
the render pipeline trying to use this flag.
Now the sampler functions accepts extra argument so render pipeline can
still skip image load, but calls outside of the pipeline will nicely load
all the images.
Not cleanest change in the world but good enough to unlock gooseberry team,
and assuming we already had pool passed all over the place it should be all
fine.
Will need to reshuffle arguments into SamplerOptions structure later.
Also cleanup extrude code.
- remove normal calculation.
- remove return values for transform type.
- use enums.
Thanks to Psy-fi for finding the initial fix.
Org code by robschia (Roberto Schiavone), first review by campbellbarton (Campbell Barton),
final review and minor changes by mont29 (Bastien Montagne).
Reviewers: cambellbarton, mont29
Subscribers: mont29, campbellbarton
Maniphest Tasks: T40930
Differential Revision: https://developer.blender.org/D638
Removing edge-hit-doubles could incorrectly de-duplicate intersections between different edges.
Gave noticeable errors cutting through geometry that overlapped exactly.
* Same issue as T42760 was also reproducible in some cases in 3DView.
* You got an error message about missing RNA prop in some drop-called operators.
* You could not drop a movie file in nodes, (some cases of) 3DView, nor ImageEditor.
Based on investigation by sergey (Sergey Sharybin) and revzin (Grigory Revzin).
Based on patch D460 by revzin (Grigory Revzin).
Differential Revision: https://developer.blender.org/D460
