When the attribute doesn't exist, the node should give the default
of 12, as defined by the accessor method for `bke::CurvesGeometry`.
Pull Request #104674
Curve type counts are updated eagerly but it was missing in this
node leading to a crash further down the line where the counts
were expected to be correct.
Previously, the node used the "true" normal of every looptri. Now it uses the
"loop normals" which includes e.g. smooth faces and custom normals. The true
normal can still be used on the points by capturing it before the Distribute node.
We do intend to expose the smooth normals separately in geometry nodes as well,
but this is an important first step.
It's also necessary to generate child hair between guide hair strands that don't
have visible artifacts at face boundaries.
For perfect backward compatibility, the node still has a "Legacy Normal" option
in the side bar. Creating the exact same behavior with existing nodes isn't
really possible unfortunately because of the specifics of how the Distribute
node used to compute the normals using looptris.
Pull Request #104414
Avoid computing the non-derivative height twice.
The height is now computed as part of the main function, while the height at x and y offsets are still computed on a separate function.
The differentials are now computed directly at node_bump.
Co-authored-by: Miguel Pozo <pragma37@gmail.com>
Pull Request #104595
This just adds `threading::parallel_for` and `threading::parallel_invoke` in a few
places where it can be added trivially. The run time of the `separate_geometry`
function changes from 830 ms to 413 ms in my test file.
Pull Request #104563
Add a new node that groups faces inside of boundary edge regions.
This is the opposite action as the existing "Face Group Boundaries"
node. It's also the same as some of the "Initialize Face Sets"
options in sculpt mode.
Discussion in #102962 has favored "Group" for a name for these
sockets rather than "Set", so that is used here.
Pull Request #104428
As described in #95966, replace the `ME_EDGEDRAW` flag with a bit
vector in mesh runtime data. Currently the the flag is only ever set
to false for the "optimal display" feature of the subdivision surface
modifier. When creating an "original" mesh in the main data-base,
the flag is always supposed to be true.
The bit vector is now created by the modifier only as necessary, and
is cleared for topology-changing operations. This fixes incorrect
interpolation of the flag as noted in #104376. Generally it isn't
possible to interpolate it through topology-changing operations.
After this, only the seam status needs to be removed from edges before
we can replace them with the generic `int2` type (or something similar)
and reduce memory usage by 1/3.
Related:
- 10131a6f62
- 145839aa42
In the future `BM_ELEM_DRAW` could be removed as well. Currently it is
used and aliased by other defines in some non-obvious ways though.
Pull Request #104417
Straightforward port. I took the oportunity to remove some C vector
functions (ex: copy_v2_v2).
This makes some changes to DRWView to accomodate the alignement
requirements of the float4x4 type.
This implements two optimizations:
* If the duplication count is constant, the offsets array can be
filled directly in parallel.
* Otherwise, extracting the counts from the virtual array is parallelized.
But there is still a serial loop over all elements in the end to compute
the offsets.
Straightforward port. I took the oportunity to remove some C vector
functions (ex: `copy_v2_v2`).
This makes some changes to DRWView to accomodate the alignement
requirements of the float4x4 type.
This declaration change tells the evaluation system that the radius
field is evaluated on the input geometry. Which in turn means that
attributes referenced by the radius field should be propagated to
the geometry.
Versioning code in `do_versions_after_linking_260` inserted new group input
and output nodes. And (reasonably?) expected sockets to exist on those nodes.
However, `nodeAddStaticNode` did not initialize sockets on nodes with that use
`declare_dynamic` yet. This patch changes it so that `declare_dynamic` is used
in more places, which caused issues during file loading when node groups are
updated in somewhat arbitrary order (not in an order that is based on which
groups use which).
Differential Revision: https://developer.blender.org/D17183
This patch adds support for compilation and execution of GLSL compute shaders. This, along with a few systematic changes and fixes, enable realtime compositor functionality with the Metal backend on macOS. A number of GLSL source modifications have been made to add the required level of type explicitness, allowing all compilations to succeed.
GLSL Compute shader compilation follows a similar path to Vertex/Fragment translation, with added support for shader atomics, shared memory blocks and barriers.
Texture flags have also been updated to ensure correct read/write specification for textures used within the compositor pipeline. GPU command submission changes have also been made in the high level path, when Metal is used, to address command buffer time-outs caused by certain expensive compute shaders.
Authored by Apple: Michael Parkin-White
Ref T96261
Ref T99210
Reviewed By: fclem
Maniphest Tasks: T99210, T96261
Differential Revision: https://developer.blender.org/D16990
The code removed here was intended to be an optimization that
avoids creating an additional node to join multiple attribute sets.
However, that optimization did not work, because it did not take
into account whether the single attribute set is required or not.
Allow to explicitly swap node links by pressing the alt-key while
reconnecting node links. This replaces the old auto-swapping based on
matching prefixes in socket names.
The new behavior works as follows:
* By default plugging links into already occupied (single input)
sockets will connect the dragged link and remove the existing one.
* Pressing the alt-key while dragging an existing node link from one
socket to another socket that is already connected will swap the
links' destinations.
* Pressing the alt-key while dragging a new node link into an already
linked socket will try to reconnect the existing links into another
socket of the same type and remove the links, if no matching socket
is found on the node. This is similar to the old auto-swapping.
Swapping links from or to multi input sockets is not supported.
This commit also makes the link drag tooltip better visible, when using
light themes by using the text theme color.
Reviewed By: Hans Goudey, Simon Thommes
Differential Revision: https://developer.blender.org/D16244
In the node groups for T103730, the "Points of Curve" node is often used to
retrieve the root point of every curve. Since the curve point offsets array
already contains that data directly, we can detect this as a special case and
avoid all the other work.
Differential Revision: https://developer.blender.org/D17128
The node does not support blurring booleans, but that was not handled
property in link drag search.
Differential Revision: https://developer.blender.org/D17139
In 7536abbe16 changes make possible to input field as Count field.
But changes of declaration probably was forgotten. So now this input
can take field and node will be work. But input link was red. This
patch resolves this issue.
Differential Revision: https://developer.blender.org/D17131
When the sort weights are a single value, they have no effect,
so sorting the relevant indices for the element will be wasted work.
The sorting is expensive compared to the rest of the node. In my
simple test of the points of curve node, it became 6 times faster
when the weights are a single value.
The list was populated from the base (unevaluated) object, but now that
Geometry nodes can generate various layers this is impractical..
Differential Revision: https://developer.blender.org/D17093
A mistake in the node type descriptions gave the node a description for
the reverse curve node.
Differential Revision: https://developer.blender.org/D17111
`remember_deformed_curve_positions_if_necessary` has to be called before
topology changing operations on curves. Otherwise the crazy-space data
is invalid.
The call to BKE_volume_grid_openvdb_for_write() was accidentally removed
in D15806. This adds it to BKE_volume_grid_transform_matrix_set() to
avoid that it happens again when that function is used.
Differential Revision: D16949
This improves performance in cases where the Set Position node is "turned off"
by passing `false` into the selection input.
It's possible that the node still takes some time in this case currently, because
it is destructing the input fields which may reference geometries that need
to be destructed as well. We could potentially change this node (and others)
so that the field inputs are only requested when the selection is not a
constant `false`.
This was not done originally, because one had to iterate over all curves
to get the number of points which had some overhead. Now the number
of points is stored all the time anyway.
The `fix_link_cycles` function added in rB2ffd08e95249df2a068dd did not
handle the case correctly when there are multiple cycles going through
the same socket.
This adds a new `Interpolate Curves` node. It allows generating new curves
between a set of existing guide curves. This is essential for procedural hair.
Usage:
- One has to provide a set of guide curves and a set of root positions for
the generated curves. New curves are created starting from these root
positions. The N closest guide curves are used for the interpolation.
- An additional up vector can be provided for every guide curve and
root position. This is typically a surface normal or nothing. This allows
generating child curves that are properly oriented based on the
surface orientation.
- Sometimes a point should only be interpolated using a subset of the
guides. This can be achieved using the `Guide Group ID` and
`Point Group ID` inputs. The curve generated at a specific point will
only take the guides with the same id into account. This allows e.g.
for hair parting.
- The `Max Neighbors` input limits how many guide curves are taken
into account for every interpolated curve.
Differential Revision: https://developer.blender.org/D16642
Based on discussion about T102962, rename the "Face Set Boundaries" node
to "Face Group Boundaries" and the Accumulate Field node's "Group Index"
socket to "Group ID". This convention of "__ Group" and "Group ID" will
be used more in other nodes in the future.
This commit doesn't affect forwards or backwards compatibility.
