For a single day in 2015 between rBff3d535bc2a6309 and rB945f32e66d6ada,
custom data structs could be written with an incorrect maxlayer field.
This means that custom data structs read from those files would think
they have more space to add new layers than they actually did, causing
a crash if more layers were added. This was found while investigating
a crash from D14365 which adds new face corner layers in versioning.
The fix is to reset all maxlayer integers to totlayer, which is
done when writing files in current Blender anyway.
The file tests/render/motion_blur/camera_zoom_blur_perspective.blend
has this problem as it was added on 2015-07-21, right between the two
commits. Adding three custom data layers in versioning code would crash.
The problem was originally found and investigated by Martijn Versteegh
(@Baardaap), thanks!
Differential Revision: https://developer.blender.org/D14786
When the object's position depends on the geometry and the geometry
depends on the object's position, we can't count on the object's
evaluated geometry to be available. Lattices and mesh objects have
equivalent checks in this vertex parenting function.
Differential Revision: https://developer.blender.org/D14781
When height is limited, it is defined by space occupied by strips,
but at least channels 1 to 7 will be always visible. This allows it to
easily overview timeline content by zooming out to maximum extent in Y
axis and panning in X axis.
More channels can be "created" on demand by moving strip to higher
channel. When strip is removed and highest channel becomes empty, view
will stay as is until it is moved down. Then new highest point is
remembered and it is not possible to pan upwards until strip is moved to
higher channel.
Limiting takes into account height of scrubbing and markers area as
well as scrollers. This means that when zoomed out to maximum extent,
no strips are obstructed by fixed UI element.
Fixes T57976
Reviewed By: Severin
Differential Revision: https://developer.blender.org/D14263
Geometry node group inputs and outputs get a new property that controls
the attribute name used for that field input/output when assigning the
node group to a modifier for the first time. If the default name is assigned
to an input, the default "Use attribute name" is true .
In order to properly detect when a node group is first assigned,
the modifier now clears its properties when clearing the node group.
Ref T96707
Differential Revision: https://developer.blender.org/D14761
The crash is caused as the subdivision wrapper does not have loop
normals, which are generally computed at the end of the modifier stack
evaluation via `mesh_calc_modifier_final_normals`. (Note that they are
initially computed, but deleted by the subdivision wrapper creation.)
This records in the mesh runtime whether loop normals should have been
computed and computes them alongside the subdivision wrapper.
Differential Revision: https://developer.blender.org/D14489
It was possible to set context pointers for buttons via the layout, but
not for buttons in places where the layout system wasn't used (where
buttons are placed manually). This is needed for buttons in the
Outliner, see D14653.
Goals:
* Better high level control over where devirtualization occurs. There is always
a trade-off between performance and compile-time/binary-size.
* Simplify using array devirtualization.
* Better performance for cases where devirtualization wasn't used before.
Many geometry nodes accept fields as inputs. Internally, that means that the
execution functions have to accept so called "virtual arrays" as inputs. Those
can be e.g. actual arrays, just single values, or lazily computed arrays.
Due to these different possible virtual arrays implementations, access to
individual elements is slower than it would be if everything was just a normal
array (access does through a virtual function call). For more complex execution
functions, this overhead does not matter, but for small functions (like a simple
addition) it very much does. The virtual function call also prevents the compiler
from doing some optimizations (e.g. loop unrolling and inserting simd instructions).
The solution is to "devirtualize" the virtual arrays for small functions where the
overhead is measurable. Essentially, the function is generated many times with
different array types as input. Then there is a run-time dispatch that calls the
best implementation. We have been doing devirtualization in e.g. math nodes
for a long time already. This patch just generalizes the concept and makes it
easier to control. It also makes it easier to investigate the different trade-offs
when it comes to devirtualization.
Nodes that we've optimized using devirtualization before didn't get a speedup.
However, a couple of nodes are using devirtualization now, that didn't before.
Those got a 2-4x speedup in common cases.
* Map Range
* Random Value
* Switch
* Combine XYZ
Differential Revision: https://developer.blender.org/D14628
Motion paths can now be initialised to more sensible frame ranges,
rather than simply 1-250:
- Scene Frame Range
- Selected Keyframes
- All Keyframes
Reviewed By: sybren, looch, dfelinto, pablico
Maniphest Tasks: T93047
Differential Revision: https://developer.blender.org/D13687
Failure to clip automatic-names meant named could end with a "." for e.g.
Error in [0] meant the clipped text was copied then
immediately overwritten.
[0]: 354e6b9c18
- De-duplicate txt_new_linen & txt_new_line.
- Don't accept NULL as input for txt_new_linen & txt_new_line
(callers can pass in an empty string instead).
- Avoid duplicate strlen calls in txt_new_linen.
- Use memcpy when the length of the string is known in txt_delete_sel &
BKE_text_load_ex.
`attribute_try_create` didn't understand that the vertex group
attribute already existed because it only looks for names in custom
data layers when the domain matches. Using `attribute_exists`
unfortunately requires another loop through all attribute names,
but that should be optimized separately in the future anyway.
Differential Revision: https://developer.blender.org/D14756
Remembering the number of curves of every type makes it fast to know
whether processing specific to a single curve type has to be done.
This information was accessed in quite a few places, so this should be
an overall reduction in overhead for the new curves type.
The cache is computed eagerly, in other words every time after changing
the curve types. In order to reduce verbosity I added helper functions
for some common ways to set the types.
Differential Revision: https://developer.blender.org/D14732
- Add missing doxy-section for Apply Parent Inverse Operator
- Use identity for None comparison in Python.
- Remove newline from operator doc-strings.
- Use '*' prefix multi-line C comment blocks.
- Separate filenames from doc-strings.
- Remove break after return.
Works for both Cycles and multires bake. Triangles are baked to multiple
UDIM images if they span across them, though such UV layouts are generally
discouraged as there is no filtering across UDIM tiles.
The bake margin currently only works within UDIM tiles. For the extend method
this is logical, for the adjacent faces method it may be useful to support
copying pixels from other UDIM tiles, though this seems somewhat complicated.
Fixes T95190
Ref T72390
The original mistake I made in b9febb54a4 was thinking
that the input curve object data to `BKE_displist_make_curveTypes`
was already copied from the original. I think I misread some of its
`ID` flags. This commit places the result of curves evaluation in a
duplicated curve instead, and copies the edit mode pointers
necessary for drawing overlays. `Curve` needs to know not to
free those pointers.
I still don't have a full understanding of why some of the tactics I've
used work and others don't. I've probably tried around 8 different
solutions at this point, and this is the best I came up with.
The dependency graph seems to have some handling of edit mode
pointers that make the edit mode overlays work if the evaluated
result is only an empty curve created by the evaluated geometry set.
This doesn't work with the current method and I need to set the
edit mode pointers at the end of evaluation explicitly.
We're constrained by the confusing duality of the old curves system
combined with the new design using the evaluated geometry set.
Older areas of Blender expect the evaluated `Curve` to be a copy
of the original, even if it was replaced by some arbitrary evaluated mesh.
Differential Revision: https://developer.blender.org/D14561
Caused by {rBcfa53e0fbeed}
Above commit mixed up source and destination meshes causing bad lookups
on calculated normals.
Now make sure we get normals from our destination mesh to project along.
Note this was only reported for Projected Face Interpolated mode, but
same was true for Projected Edge Interpolated mode (though that one is a
bit weird to test since I think there is generally something wrong with
that mode -- with or without rBcfa53e0fbeed).
Fixes T97528
Maniphest Tasks: T97528
Differential Revision: https://developer.blender.org/D14726
When in mesh editmode, attributes point to bmesh customdata, the
attribute data is empty since custom data is stored per element instead
of a single array there (same es UVs etc.).
Opposed to e.g. UVs, general attributes were not setting their data
length/size to zero in case of editmode though, which could lead to
- crash in Outliner Data Api view [that was reported in T95922]
- RuntimeError such as the following:
```
RuntimeError: bpy_prop_collection[index]: internal error, valid index 0
given in 8 sized collection, but value not found
```
Now check for mesh editmode in `BKE_id_attribute_data_length` (and
return zero in that case).
Alternatively, the check could also be done in
`rna_Attribute_data_length` only (such as UVs do in
`rna_MeshUVLoopLayer_data_length`).
Ref D11998
Fixes T95922
Maniphest Tasks: T95922
Differential Revision: https://developer.blender.org/D14714
Since {rBeae36be372a6b16ee3e76eff0485a47da4f3c230} the distinction
between float and byte colors is more explicit in the ui. So far, geometry
nodes couldn't really deal with byte colors in general. This patch fixes that.
There is still only one color socket, which contains float colors. Conversion
to and from byte colors is done when read from or writing to attributes.
* Support writing to byte color attributes in Store Named Attribute node.
* Support converting to/from byte color in attribute conversion operator.
* Support propagating byte color attributes.
* Add all the implicit conversions from byte colors to the other types.
* Display byte colors as integers in spreadsheet.
Differential Revision: https://developer.blender.org/D14705
This was projecting the unnormalized z scale axis onto the plane defined
by the view vector. If object scale was very small, this made the empty
still visible at viewing angles far from the object axis.
Now use the normalized z scale axis to make this work the same at all
object scales.
Fixes T97004.
Maniphest Tasks: T97004
Differential Revision: https://developer.blender.org/D14557
- Verrtex paint mode has been refactored into C++ templates.
It now works with both byte and float colors and point
& corner attribute domains.
- There is a new API for mixing colors (also based
on C++ templates). Unlike the existing APIs byte
and float colors are interpolated identically.
Interpolation does happen in a squared rgb space,
this may be changed in the future.
- Vertex paint now uses the sculpt undo system.
Reviewed By: Brecht Van Lommel.
Differential Revision: https://developer.blender.org/D14179
Ref D14179
The "PROP" in the name reflects its generic status, and removing
"LOOP" makes sense because it is no longer associated with just
mesh face corners. In general the goal is to remove extra semantic
meaning from the custom data types.
This is mostly a cleanup to avoid hardcoding the eager calculation of
normals it isn't necessary, by reducing calls to `BKE_mesh_calc_normals`
and by removing calls to `BKE_mesh_normals_tag_dirty` when the mesh
is newly created and already has dirty normals anyway. This reduces
boilerplate code and makes the "dirty by default" state more clear.
Any regressions from this commit should be easy to fix, though the
lazy calculation is solid enough that none are expected.
This adds support for rendering motion blur for volumes, using their
velocity field. This works for fluid simulations and imported VDB
volumes. For the latter, the name of the velocity field can be set per
volume object, with automatic detection of velocity fields that are
split into 3 scalar grids.
A new parameter is also added to scale velocity for more artistic control.
Like for Alembic and USD caches, a parameter to set the unit of time in
which the velocity vectors are expressed is also added. For Blender gas
simulations, the velocity unit should always be in seconds, so this is
only exposed for volume objects which may come from external OpenVDB
files.
These parameters are available under the `Render` panels for the fluid
domain and the volume object data properties respectively.
Credits: kernel advection code from Tangent Animation's Blackbird based
on earlier work by Geraldine Chua
Differential Revision: https://developer.blender.org/D14629
Continuing the refactors described in T93602, this commit moves
the face dot tag set by the subdivision surface modifier out of
`MVert` to `MeshRuntime`. This clarifies its status as runtime data
and allows further refactoring of mesh positions in the future.
Before, `BKE_modifiers_uses_subsurf_facedots` was used to check
whether subsurf face dots should be drawn, but now we can just check
if the tags exist on the mesh. Modifiers that create new new geometry
or modify topology will already remove the array by clearing mesh
runtime data.
Differential Revision: https://developer.blender.org/D14680
