The knife code currently calls the `BLI_bvhtree_overlap` function that
tests the overlap between the mesh tree and an AABB that encompasses the
points projected in the clip_start, clip_end and or clip_planes of the
view.
This resulted in many false positives since the AABB is very large.
Often all the triangles "overlapped".
The solution was to create a new function that actually tests the
intersection of AABB with a plane.
Even not considering the clip_planes of the view, this solution is more
appropriate than using overlap.
Differential Revision: https://developer.blender.org/D8229
This was due to a bad driver which was not respecting this bit of the
specification:
`If the current primitive does not originate from an instanced draw command, the value of gl_InstanceID is zero.`
This patch adds support for the curve primitive from OptiX to Cycles. It's currently hidden
behind a debug option, since there can be some slight rendering differences still (because no
backface culling is performed and something seems off with endcaps). The curve primitive
was added with the OptiX 7.1 SDK and requires a r450 driver or newer, so this also updates
the codebase to be able to build with the new SDK.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D8223
Don't apply the matrix transform optimization in this case, curve points and
radius can't represent non-uniform scale the way is possible with triangle
meshes and vertices.
This would cause abrupt change if objects had e.g. motion blur in one frame
and not in the next.
Each duplicated (a.k.a. instanced) object has a Persistent ID, which
identifies a dupli within the context of its duplicator. This ID
consists of several numbers when there are nested duplis (for example a
mesh instancing empties on its vertices, where each empty instances a
collection). When exporting to Alembic/USD, these are used to uniquely
name the duplicated objects in the export.
This commit reverses the order of the persistent ID numbers, so that the
first number identifies the first level of recursion. This produces
trees like this:
ABC
`--Triangle
|--Triangle
|--Empty-1
| `--Pole-1-0
| |--Pole
| `--Block-1-1
| `--Block
|--Empty
| `--Pole-0
| |--Pole
| `--Block-1
| `--Block
|--Empty-2
| `--Pole-2-0
| |--Pole
| `--Block-2-1
| `--Block
`--Empty-0
`--Pole-0-0
|--Pole
`--Block-0-1
`--Block
It is now clearer that `Pole-2-0` and `Block-2-1` are instanced by
`Empty-2`. Before this commit, they would have been named `Pole-0-2` and
`Block-1-2`.
Exporting a scene to USD or Alembic would fail when there are multiple
duplicates of parent & child objects, duplicated by the same object. For
example, this happens when such a hierarchy of objects is contained in a
collection, and that collection is instanced multiple times by mesh
vertices. The problem here is that the 'parent' pointer of each
duplicated object points to the real parent; Blender would not figure
out properly which duplicated parent should be used.
This is now resolved by keeping track of the persistent ID of each
duplicated instance, which makes it possible to reconstruct the
parent-child relations of duplicated objects. This does use up some
memory for each dupli, so it could be heavy to export a Spring scene
(with all the pebbles and leaves), but it's only a small addition on top
of the USD/Alembic writer objects that have to be created anyway. At
least with this patch, they're created correctly.
Code-wise, the following changes are made:
- The export graph (that maps export parent to its export children) used
to have as its key (Object, Duplicator). This is insufficient to
correctly distinguish between multiple duplis of the same object by
the same duplicator, so this is now extended to (Object, Duplicator,
Persistent ID). To make this possible, new classes `ObjectIdentifier`
and `PersistentID` are introduced.
- Finding the parent of a duplicated object is done via its persistent
ID. In Python notation, the code first tries to find the parent
instance where `child_persistent_id[1:] == parent_persistent_id[1:]`.
If that fails, the dupli with persistent ID `child_persistent_id[1:]`
is used as parent.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D8233
We don't need it and it was optionally enabled, causing Blender to fail
to link on certain configuration (when Brotli is installed via Homebrew
for example).
This is just a change in `AbstractHierarchyIterator::debug_print_export_graph()`
to aid in debugging. It'll make it possible to distinguish between
different duplicates of the same object.
No functional changes to Blender itself.
The unit being "pixels".
Before this change the solve errors were unitless in the UI.
With this change in place, the UI is now clear on that the unit of the
reprojection errors is pixels (px).
Differential Revision: https://developer.blender.org/D8000
The configuration was confused about gettext installed via Homebrew
and isysroot passed to Python's compilation but not to test programs.
After this change `import gettext` still works, but it is unclear how
to test it further,
Differential Revision: https://developer.blender.org/D8231
Searching in these files for "_as" will reveal a comment at the
top, that explains what these methods are for. There is no need
to duplicate that knowledge all over the place.
Set of fixes which had to be made in order to have dependencies built
on own laptop:
- Require bison as a dependent software. It is required by ISPC.
On macOS it is required to be installed via Homebrew. This is because
Bison from Xcode toolchain is too old.
- Made sure Boost is compiled using clang.
Without this gcc was used, and some unsupported command line argument
was passed to it.
- Modify OGG in a way which does in fact pull fixed sized types.
They are defined in stdint.h.
Without this fix FFmpeg will not detect presence of OGG because the
test program fails to compile.
- Force disable zstd compression and make wepb optional for the TIFF
library. Without this TIFF might pick up development libraries from
Homebrew.
Differential Revision: https://developer.blender.org/D8221
Only the delete shortcut applies here, although the move up and down
operators can optionally be assigned in the keymap.
See rB1fa40c9f8a81 for more details and rB5d2005cbb54b for the
grease pencil modifier panel implementation, which is the same.
Also remove the code in the ghash that is no longer used.
This change simplifies the existing code.
Differential Revision: https://developer.blender.org/D8219
This adds a notification type for shaderfx so the properties editor can
be properly notified to redraw.
Another possible solution would be to also redraw the shaderfx tab
with a ND_MODIFIER update, but this solution allows us to avoid
some unecessary redraws too. There were no existing cases of
ND_OBJECT | NC_MODIFIER updates, so those cases were
removed from buttons_area_listener.
Differential Revision: https://developer.blender.org/D8159
Denoising devices do not need to load the full feature set of kernels, so only activate the denoising
feature for them (so that it is possible to use features that are supported by the render devices, but
not the denoising devices).
For historical reasons, `DupliObject::persistent_id` was of size
`2*MAX_DUPLI_RECUR`. These reasons are now gone, and the persistent ID
always gets exactly one array element for every dupli-recursion.
Differential Revision: https://developer.blender.org/D8222
Reviewed by: brecht
Caused by recent own refactor of cache presevation handling in readfile,
EEVEE's lightcache are weird birds that can also be saved in .blend
files, need a special handling for those 'persistent' caches...
Both `knife_find_closest_vert` and `knife_find_closest_edge` call
`knife_find_closest_face`. Thus, running the raycast twice and setting
values like `kcd->curr.bmface` and `kcd->curr.is_space` repeatedly.
So:
- separate `knife_find_closest_face` from `knife_find_closest_vert` and `knife_find_closest_edge`.
- rename `knife_find_closest_vert` to `knife_find_closest_vert_of_face`
- rename `knife_find_closest_edge `to `knife_find_closest_edge_of_face`.
- do not set parameters previously set.
Differential Revision: https://developer.blender.org/D8198
Even if we do not use exception in many places in Blender, our core C++ library
should become exception safe. Otherwise, we don't even have the option
to work with exceptions if we decide to do so.
New rip tool matching edit-mesh rip functionality.
Useful as disconnecting UV's, especially for loops is inconvenient
without this.
This uses 'V' to rip, changing stitch to 'Alt-V'.
It has been tested that local shaders workaround isn't needed for the
latest Windows/Intel 6xx GPU's.
Currently the local shaders workaround doesn't work anymore during the
investigation it was detected that the intel drivers didn't need it
anymore.
Local shaders should still be fixed as it is also used for some legacy
iGPU's. The current work around crashes when doing preview renders in
EEVEE as the default materials aren't available but for the work around
they should. (See T77346 for more information)
