Previously, to get the declaration of a socket, one had to go
through `node->declaration`. Now this indirection is not necessary
anymore. This makes it easier to add more per-socket information
into the declaration and accessing it in various places.
Currently, this system is used by socket descriptions and node warnings
for unsupported geometry component types.
Reference struct members by name instead relying on their order.
This also simplifies moving back to named members when all compilers
we use support them.
The point domain attributes (stored on splines) are sorted so they
have a consistent order on all splines after the join. However, spline
domain attributes were included in the new order, which didn't work
because the length of the attribute lists didn't match. The simple fix
is to only include point domain attributes in the new order vector.
Adds a `wmOperatorCallContext` typedef for the existing `WM_OP_XXX`
operator context enum. This adds type safety, allows the compiler to
produce better warnings and helps understanding what a variable is for.
Differential Revision: https://developer.blender.org/D13113
Reviewed by: Campbell Barton
This solves the issue in a more general that can also be used to solve
similar issues for other nodes in the future. Nodes can specify their
"main" socket in their declaration so that we don't have to rely on
heuristics.
Differential Revision: https://developer.blender.org/D13108
Function arguments were incorrect.
Noted during @simonthommes live stream.
Reviewed By: JacquesLucke
Differential Revision: https://developer.blender.org/D13110
Adds a length output to the curve parameter node which returns the
length of a spline at each point, or the length of the curve at
each spline depending on the domain.
Differential Revision: https://developer.blender.org/D12882
Building on the work in rBef45399f3be0, this commits adds
tooltips to the inputs for the default primitives nodes.
Differential Revision: https://developer.blender.org/D12640
Add a boolean input to the resample curve node that indicates which
splines should be resampled and which should be unchanged.
Differential Revision: https://developer.blender.org/D13064
The geometry node evaluator now has access to the entire socket path
from the node that produces a value to the node that uses it. This allows
the evaluator to make decisions about at which points in the path the
value should be converted. Multiple conversions may be necessary under
some circumstances with nested node groups.
Differential Revision: https://developer.blender.org/D13034
This properly checks the order of point domain attributes on each
spline, and avoids the map, which makes the code easier to understand.
The assert is also added to realizing instances and the join node.
Differential Revision: https://developer.blender.org/D13071
Currently the curve to mesh node relies on the order of attributes being
the same on every spline. This is a worthwhile assumption, because it
will allow removing the attribute name storage duplication on every
spline in the future.
However, the join geometry node broke this order, since it just created
new attributes without any regard to the order. To fix this, I added a
"reorder" step after all the merged attributes have been created, the
types have been joined, etc. It should be possible to change this code
so that the attributes are added with the right order in the first
place, but I would like to do that after refactoring spline attribute
storage, and not for 3.0.
Differential Revision: https://developer.blender.org/D13074
We run into float precision issues here, clamp the number of octaves to
one less, which has little to no visual difference. This was empirically
determined to work up to 16 before, but with additional inputs like
roughness only 15 appears to work.
Also adds misisng clamp for the geometry nodes implementation.
Previously, `ImageTile->ok` and `ImageUser->ok` were used to indicate
whether an image failed to load. There were three possible values
which (probably) had the following meanings:
* `0`: There was an error while loading the image. Don't try to load again.
* `1`: Default value. Try to load the image.
* `2`: The image was loaded successfully.
This image-wide flag did not make sense unfortunately, because loading
may work for some frames of an image sequence but not for others.
Remember than an image data block can also contain a movie.
The purpose of the `->ok` flag was to serve as an optimization to avoid
trying to load a file over and over again when there is an error (e.g. the
file does not exist or is invalid). To get the optimization back, the patch
is changing `MovieCache` so that it can also cache failed load attempts.
As a consequence, `ibuf` is allowed to be `NULL` in a few more places.
I added the appropriate null checks.
This also solves issues when image sequences are used with the
Image Texture node in Geometry nodes (also see D12827).
Differential Revision: https://developer.blender.org/D12957
Even though volumes can only have one material, it is still necessary to
allow assigning a material to a prodecurally created volume. This commit
adds volume support and a warning for when a non-constant selection is
used with a volume.
Fixes T92485
Differential Revision: https://developer.blender.org/D13037
Instead of creating a separate grid first and then merging the points
to volume grid, use the recently added `BKE_volume_grid_add_vdb`
helper function for this purpose.
This node doesn't only support point clouds, it supports any geometry
component type with points, so meshes, curves, and point clouds.
We could explicitly list them to add a warning for volumes, but
that wouldn't really have any practical benefit, and isn't done
elsewhere.
As part of the refactor to the node declaration builders, we had hoped
to add a regular expression specifically for these socket names, but
recent discussions have revealed that using the translation marker
macros is the preferred solution.
If the names and descriptions were exposed to RNA, these would not
be necessary. However, that may be quite complicated, since sockets
are all instances of the same RNA types.
Differential Revision: https://developer.blender.org/D13033
Calling `remove_unused_references` inside the `modify_geometry_sets` loop
was known to be not entirely reliable before. Now I just moved it out of
the loop which fixes the bug.
This fixes one (of possibly multiple) root issues. The collection passed into
the Collection Info node must not contain the current object, because that
would result in a dependency cycle and recursive instancing.
The text is just too long, it doesn't fit in the node width,
and the tooltips display the property names well enough,
since they aren't used as often as other settings.
Also display the text in lite builds too, there is no reason not to.
That makes the node more useful by default.
One use case is to delete some points after the Set ID node, then instance
with some randomness. Now when deleting different points, the
randomness will remain stable.
Subdivision surface: Both geometry sockets renamed to "Mesh"
Points to Volume: Use "Points" and "Volume" names
Distribute Points on Faces: Use "Mesh" input name
These are meant to provide a hint to users which type each
node is meant to use.
These nodes allow accessing and changing the stable/random ID used
for motion blur with instances and stable randomness.
Since rB40c3b8836b7a, the stable ID is a built-in attribute, so to be
consistent and allow changing it in the node tree like other built-in
attributes, it has get and set nodes.
