As described in T98943, this commit adds a node that can
evaluate a field on a separate domain in a larger field context.
This is potentially useful in many cases, to avoid relying on
a separate capture attribute node, which can make it easier
to build reusable fields that don't need geometry inputs.
Internally, the node just evaluates the input field in the larger
field context and then uses the generic domain interpolation,
so the code is simple. One future optimization might be using
the input selection to only evaluate part of the input field, but
then the selection has to be interpolated as well, and that might
not always be worth it.
Differential Revision: https://developer.blender.org/D15289
This node takes a point count,a vector field, and float field and creates
a pointcloud with n points at the positions indicated in the vector
field with the radii specified in the float field.The node is placed in
the "Point" menu.
Differential Revision: https://developer.blender.org/D13920
Maniphest Task: https://developer.blender.org/T93044
In the cases where length is zero, we simply equally distribute the
value based on the control point/curve index.
Differential Revision: https://developer.blender.org/D15285
This applies the same optimization as b8bd304bd4 to the separate
color node. I observed about a 50% improvement with 10 million values
when only extracting one channel-- from about 17ms to 11ms.
We store various lazily calculated caches on meshes, some of which
depend on the vertex positions staying the same. The current API to
invalidate these caches is a bit confusing. With an explicit set of
functions modeled after the functions in `BKE_node_tree_update.h`,
it becomes clear which function to call. This may become more
important if more lazy caches are added in the future.
Differential Revision: https://developer.blender.org/D14760
One case of copying image formats was not properly using BKE_image_format_copy.
To fix this for existing .blend file we need to do versioning, ensuring the curve
mapping is properly copied.
Eevee rendered an empty image for aov nodes that weren't linked to
any other nodes. When connected the result was OK. The root cause was
that the AOV nodes were not marked as output node and pruned when not
connected to any other nodes. The pruning process is there to reduce
the complexity of the GLSL and improve compilation time and
execution time.
This speeds up the node ~20% in common cases, e.g. when only the
X axis is used. The main optimization comes from not writing to memory
that's not used afterwards anymore anyway.
The "optimal code" for just extracting the x axis in a separate loop was
not faster for me. That indicates that the node is bottlenecked by
memory bandwidth, which seems reasonable.
This commit adds a Volume Cube primitive node. It outputs a volume that
contains a single "density" float grid. The density per voxel can be
controlled with a field that depends on the voxel position (using the
existing Position node). Other field inputs are not supported.
The density field is evaluated on every voxel.
Possible future improvements are listed in D15198.
Differential Revision: https://developer.blender.org/D15198
This patch adds a 'Intersecting Edges' output with a boolean selection
that only gives you the new edges on intersections.
Will work on a couple of examples next, this should make some
interesting effects possible (including getting us closer to the "bevel-
after-boolean-usecase")
To achieve this, a Vector is passed to `direct_mesh_boolean` when the
iMesh is still available (and intersecting edges appended), then from
those edge indices a selection will be stored as attribute.
Differential Revision: https://developer.blender.org/D15151
The comparison between dot products of each point of the poly were
not taking into consideration negative values. FLT_MIN was used rather
than -FLT_MAX due to a misunderstanding of the FLT_MIN definition.
Maniphest Tasks: T98718
Differential Revision: https://developer.blender.org/D15161
Add a method to remove points from the new curves type, just like
the existing curve removal function. No functional changes are expected.
The code is simpler because all data is just stored as attributes, but
also different because the point data for all curves is stored in the same
arrays.
Similar performance improvements as other commits in T95443 are
expected, expecially for cases where there are many small curves.
Differential Revision: https://developer.blender.org/D15130
This commit ports the "Set Spline Type" node to the new curves type.
Performance should be improved in similar ways to the other refactors
from the conversion task (T95443). Converting to and from Catmull Rom
curves is now supported. There are a few cases where a lot of work can
be skipped: when the number of points doesn't change, and when the
types already match the goal type.
The refactor has a few other explicit goals as well:
- Don't count on initialization of attribute arrays when they are
first allocated.
- Avoid copying the entire data-block when possible.
- Make decisions about which attributes to copy when changing curves
more obvious.
- Use higher-level methods to copy data between curve points.
- Optimize for the common cases of single types and full selections.
- Process selected curves of the same types in the same loop.
The Bezier to NURBS conversion is written by Piotr Makal (@pmakal).
Differential Revision: https://developer.blender.org/D14769
A field input node for the scale of each top-level instance transform.
The scale can be set with the "Scale Instances" node, but previously
could not be retrieved.
Differential Revision: https://developer.blender.org/D15132
A field input node for the rotation of each top-level instance transform.
The rotation can be set with the "Rotate Instances" node, but previously
could not be retrieved.
Differential Revision: https://developer.blender.org/D15131
The original assert did not take into account the offset size in the loop being -1. The tests were then run in non-debug mode, so while the mesh regressions still passed, the false positive asserts that happened were not caught.
Differential Revision: https://developer.blender.org/D15136
The separate geometry and delete geometry nodes often invert the
selection so that deleting elements from a geometry can be implemented
as copying the opposite selection of elements. This should make the two
nodes faster in some cases, since the generic versions of selection
creation functions (i.e. from d3a1e9cbb9) are used instead
of the single threaded code that was used for this node.
The change also makes the deletion/separation code easier to
understand because it doesn't have to pass around the inversion.
The original index layer was not initialized properly.
Supporting original indices properly for this node is
doable, but for now it is better to simply initialize them
to the "none" value to fix the crash.
Differential Revision: https://developer.blender.org/D15105
Code was using the loop [which is looping over the selection] index as
an index for the lookup into the edges directly, but needs to be a
lookupinto the IndexMask.
Also renamed the variable (as used elsewhere) to make this more clear.
If accepted, would be nice to still get this into 3.2.
Maniphest Tasks: T98536
Differential Revision: https://developer.blender.org/D15089
The issue was that the extend socket (the last empty socket in
Input/Output nodes) was repeatedly removed and added again,
which caused more updates than necessary. Now, the extend
socket is kept if it existed already.
Differential Revision: https://developer.blender.org/D15084
This commit hides "UI attributes" described in T97452 from the UI lists
in mesh, curve, and point cloud properties, and disallow accessing them
in geometry nodes.
Internal UI attributes like selection and hiding values should use the
attribute system for simplicity and performance, but we don't want to
expose those attributes in the attribute panel, which is meant for
regular user interaction. Procedural access may be misleading or cause
problems, as described in the design task above.
These attributes are added by two upcoming patches: D14934, D14685
Differential Revision: https://developer.blender.org/D15069
This is a follow up to rBbb0fc675822f313c5546a2498a162472c2571ecb.
Now the same kind of run-time data is added to nodes and sockets.
Differential Revision: https://developer.blender.org/D15060
This results in a speedup if the capture attribute is only needed
under specific circumstances (e.g. when a switch further down the
line is true). Previously, the input field was always evaluated.
Differential Revision: https://developer.blender.org/D15018
