Blender Git Loki

Working basic edge mode

Render: move editor/render module to c++

Doing this in preparation for some work on asset preview generation.

Differential Revision: https://developer.blender.org/D13676

Fix T93941: geometry proximity breaks with high resolution mesh

The calls to `.fill` were overwriting indices that are processed by
other threads.

USD export: format fixes.

OpenSubDiv: add support for an OpenGL evaluator

This evaluator is used in order to evaluate subdivision at render time, allowing for
faster renders of meshes with a subdivision surface modifier placed at the last
position in the modifier list.

When evaluating the subsurf modifier, we detect whether we can delegate evaluation
to the draw code. If so, the subdivision is first evaluated on the GPU using our own
custom evaluator (only the coarse data needs to be initially sent to the GPU), then,
buffers for the final `MeshBufferCache` are filled on the GPU using a set of
compute shaders. However, some buffers are still filled on the CPU side, if doing so
on the GPU is impractical (e.g. the line adjacency buffer used for x-ray, whose
logic is hardly GPU compatible).

This is done at the mesh buffer extraction level so that the result can be readily used
in the various OpenGL engines, without having to write custom geometry or tesselation
shaders.

We use our own subdivision evaluation shaders, instead of OpenSubDiv's vanilla one, in
order to control the data layout, and interpolation. For example, we store vertex colors
as compressed 16-bit integers, while OpenSubDiv's default evaluator only work for float
types.

In order to still access the modified geometry on the CPU side, for use in modifiers
or transform operators, a dedicated wrapper type is added `MESH_WRAPPER_TYPE_SUBD`.
Subdivision will be lazily evaluated via `BKE_object_get_evaluated_mesh` which will
create such a wrapper if possible. If the final subdivision surface is not needed on
the CPU side, `BKE_object_get_evaluated_mesh_no_subsurf` should be used.

Enabling or disabling GPU subdivision can be done through the user preferences (under
Viewport -> Subdivision).

See patch description for benchmarks.

Reviewed By: campbellbarton, jbakker, fclem, brecht, #eevee_viewport

Differential Revision: https://developer.blender.org/D12406

Nodes: Support linking to existing group input from link drag search.

Before one could only create a new group input using the link drag search.
With this patch it becomes possible to create a Group Input node for an
existing input.

Differential Revision: https://developer.blender.org/D13674

BLI: add utility to check if type is any specific type

This adds `blender::is_same_any_v` which is the almost the same as
`std::is_same_v`. The difference is that it allows for checking multiple
types at the same time.

Differential Revision: https://developer.blender.org/D13673

Allocator: add missing include

The placement-new operator requires `#include <new>`.
It is used in `MEM_new`.

Merge branch 'master' into temp-geometry-nodes-extrude-mesh

USD Preview Surface export refactor.

Refactored the create_usd_preview_surface_material() implementation
to use a map to avoid multiple if/else statments. Further
simplified this function by moving some of its functionality
to a new create_uvmap_shader() function.

LineArt: Protecting bounding area links.

In case they overflowed the bounding area maximum link count,
Protect the link array so it doesn't crash.

LineArt: Protecting bounding area links.

In case they overflowed the bounding area maximum link count,
Protect the link array so it doesn't crash.

Merge remote-tracking branch 'origin/master' into temp-lineart-contained

LineArt: Remove duplicated edge-boundbox linking.

The edge is linked twice from differen calls during line art calculation
Probably caused by a merge and both calls stayed for some reason.
This would lead to edge link overflowing its limit of 2^16 items.

Progress on face extrude mode

USD Preview Surface export code cleanup.

Removed excessive null argument checks at the beginning
of utility functions. Added missing braces in if
statement. Misc. minor cleanup.

USD Preview Surface export typo in comments.

USD Preview Surface export cleanup.

Misc. fixes suggested by Sybren in his review,
including:

Renamed get_bsdf_node() to find_bsdf_node().

Remove excessively defensive validation and initialization.

Remove unneeded console output.

Early returns to avoid else statements.

Use LISTBASE_FOREACH macro.

USD Preview Surface export cleanup.

Now calling standard BLI_path_slash_native()
in the path comparison function.

Working edge extrusion, no new faces