When a function is executed for many elements (e.g. per point) it is often the case
that some parameters are different for every element and other parameters are
the same (there are some more less common cases). To simplify writing such
functions one can use a "virtual array". This is a data structure that has a value
for every index, but might not be stored as an actual array internally. Instead, it
might be just a single value or is computed on the fly. There are various tradeoffs
involved when using this data structure which are mentioned in `BLI_virtual_array.hh`.
It is called "virtual", because it uses inheritance and virtual methods.
Furthermore, there is a new virtual vector array data structure, which is an array
of vectors. Both these types have corresponding generic variants, which can be used
when the data type is not known at compile time. This is typically the case when
building a somewhat generic execution system. The function system used these virtual
data structures before, but now they are more versatile.
I've done this refactor in preparation for the attribute processor and other features of
geometry nodes. I moved the typed virtual arrays to blenlib, so that they can be used
independent of the function system.
One open question for me is whether all the generic data structures (and `CPPType`)
should be moved to blenlib as well. They are well isolated and don't really contain
any business logic. That can be done later if necessary.
We cannot use `std::variant` yet, because not all of the compilers
we support have a working version of it yet. For now, I just replaced
it with multiple `std::option` which is good enough, because currently
`CellValue` is only used for the cells that are actually drawn in
the spreadsheet.
When the movie wasn't found, uninitialized values would be used for
the original width/height.
Also use int instead of float as the image size is stored as an int.
Some generic algorithms from the standard library like `std::any_of`
did not work with all container and iterator types. To improve the
situation, this patch adds various type members to containers
and iterators.
Custom iterators for Set, Map and IndexRange now have an iterator
category, which soe algorithms require. IndexRange could become
a random access iterator, but adding all the missing methods can
be done when it is necessary.
The offset when creating the keyframes was set to `frame_target + i` but
`i` starts iterating from the current frame number.
The fix uses just `i` as the frame number.
Reviewed By: antoniov
Maniphest Tasks: T86745
Differential Revision: https://developer.blender.org/D10772
When joining curves, the resulting curve will inherit the bevel depth of
the active curve, but the radii would stay the same which leads to
changed appearance when joining.
Now compensate for this taking the different bevel depths into account
(if present).
Was a feature request here (and I also think we had reports about this
-- which were usually turned down as not-a-bug):
https://blender.community/c/rightclickselect/bhhbbc/
Differential Revision: https://developer.blender.org/D10752
- Adding effect strip resulted in strip with no name
- Adding sound strip attempted to read `fit_method` RNA property,
that did not exist, causing error messages in console
These issues were introduced in bbb1936411.
SEQ_add_effect_strip used SeqLoadData.image.end_frame to set end
frame. This was mistake introduced in last refactoring patch.
Use effect data, not image data, when adding effect strips.
Reviewed By: sergey
Differential Revision: D10633
When transition effect is placed between 2 adjustment layer strips,
only first adjustment layer was rendered by effect.
Limit timeline_frame range to adjustment strip frame range.
This timeline configuration is technically invalid, because strips
should overlap when using transition effect. This was never restricted
and instead of producing no image, transition effect used first and
last frame of source strip. Many users got used to this "feature" so
I think it make sense to fix this case so it behaves like other strip
types.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D10562
Add option to override current frame whem transforming strip handles.
Option can be found in View menu of VSE preview, or in timeline when
using backdrop.
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D10424
- Position text in center of image
- Increase default font size so it's more visible
- Increase font size limit
- Increase limit for location, so text can be scolled off screen
- Wrap text by default
- Tweak default box and shadow color
- Change text shadow position
- Text box no longer casts shadow
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D10571
Bold and italic fonts can be switched quickly by presing corresponding
button.
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D10542
`SequenceElement` type `orig_height` and `orig_width` members were
set to incorrect size when using proxies and not set when strip was
added which caused value to be unset.
Since now image dimensions must be read when strip is created,
these members can be initialized. When proxies are used, do not set
original size since it is not guaranteed, that proxies are exact size.
These values are not guaranteed to be up to date or exact. They should
be used for strictly informative purposes.
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D6506
This function can be used to create empty meta strip, which is not
straightforward when using operators. Very useful for import/export
scripts.
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D10661
This function can be used to move strips into meta strips with no
side effects like change of selection state.
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D10759
This visualization of nested node groups makes it easier to debug
some issues. Muted nodes, muted links, reroute nodes and unavailable
sockets are removed from the visualization to keep it clean.
Nested node groups are visualized using colored clusters.
The new clamping works by modifying the lamp internal radius which
then soften the light contribution.
However this does remove more light compare to the old solution.
This is because the clamp now affects the light over a much larger
distance since it is smoother. Old scene needs manual tweaking.
Soft surface shadows were already supported but now we support
soft shadows of the volume themselves.
This is only enabled if the light casts shadow and the scene soft
shadows toggle is enabled.
Previously area lights were just considered as point lights.
We now use a "most representative point" technique that make the
light shape appearant and gives more homogenous result.
This technique is quite cheap but it is not physically correct.
So I came up with a power function to have almost the same intensity
output as cycles in the general case.
Sun lights are treated as distant light source and need to gather
shadowing from the full frustum.
This might have performance impact on certain scenes.
This adds 2 new sliders for light objects that modulates the diffuse
light and the volume light intensities.
This also changes the way volume light is computed using point lamp
representation. We use "Point Light Attenuation Without Singularity"
from Cem Yuksel instead of the usual inverse square law.
Previously we could crash because we would not check if the modifier in
question actually was a line art modifier. We also did not query if the
modifier was disabled.
This patch adds data about instances generated by geometry nodes
to the spreadsheet. The transform data is decomposed into position,
rotation, and scale, and there is a name column to display the name
of the instanced object or collection.
This data is implemented specifically for the spreadsheet, because
we're not sure that we want to expose this data as attributes for the
use elsewhere.
Differential Revision: https://developer.blender.org/D10770
