Commit Graph

5 Commits

Author SHA1 Message Date
ffc4c126f5 Cleanup: move public doc-strings into headers for 'blenkernel'
- Added space below non doc-string comments to make it clear
  these aren't comments for the symbols directly below them.
- Use doxy sections for some headers.
- Minor improvements to doc-strings.

Ref T92709
2021-12-07 17:38:48 +11:00
5a9a16334c Geometry Nodes: support for geometry instancing
Previously, the Point Instance node in geometry nodes could only instance
existing objects or collections. The reason was that large parts of Blender
worked under the assumption that objects are the main unit of instancing.
Now we also want to instance geometry within an object, so a slightly larger
refactor was necessary.

This should not affect files that do not use the new kind of instances.

The main change is a redefinition of what "instanced data" is. Now, an
instances is a cow-object + object-data (the geometry). This can be nicely
seen in `struct DupliObject`. This allows the same object to generate
multiple geometries of different types which can be instanced individually.

A nice side effect of this refactor is that having multiple geometry components
is not a special case in the depsgraph object iterator anymore, because those
components are integrated with the `DupliObject` system.

Unfortunately, different systems that work with instances in Blender (e.g.
render engines and exporters) often work under the assumption that objects are
the main unit of instancing. So those have to be updated as well to be able to
handle the new instances. This patch updates Cycles, EEVEE and other viewport
engines. Exporters have not been updated yet. Some minimal (not master-ready)
changes to update the obj and alembic exporters can be found in P2336 and P2335.
Different file formats may want to handle these new instances in different ways.

For users, the only thing that changed is that the Point Instance node now
has a geometry mode.

This also fixes T88454.

Differential Revision: https://developer.blender.org/D11841
2021-09-06 18:31:25 +02:00
91694b9b58 Code Style: use "#pragma once" in source directory
This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.

This patch has been generated by P1561 followed by `make format`.

Differential Revision: https://developer.blender.org/D8466
2020-08-07 09:50:34 +02:00
bfc644dcfb Reduce DupliObject::persistent_id from 16 to 8 items
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
2020-07-06 16:52:28 +02:00
b5253159b6 Cleanup: split BKE_anim.h and anim.c into smaller pieces
The files are now split up into the following sections:
- `BKE_anim_path.h` and `anim_path.c` for path/curve functions.
- `BKE_anim_visualization.h` and `anim_visualizationanim_path.c` for
  animation visualization (mostly motion paths).
- `BKE_duplilist.h` for DupliList function declarations. These were
  already implemented in `object_dupli.c`, so they were rather out of
  place being declared in `BKE_anim.h` in the first place.

No functional changes.
2020-04-03 12:13:51 +02:00