Blender Git Loki

Fix T84701: Popup closes on release while dragging parameter.

Windows Ghost cursor movement was previously changed to use SendInput
because SetCursorPos sporadically allows the cursor to escape the
window. This is now reverted because SendInput causes mouse history via
GetMouseMovePointsEx to contain invalid movement history, likely due to
interaction with mouse acceleration. This resulted in popups closing
when the cursor appeared to leave their range.

Sculpt Expand: More comments

Geometry Nodes: Node error messages

This patch adds icons to the right side of nodes when they encounter a
a problem. When hovered, a tooltip displays describing the encountered
while evaluating the node.

Some examples are: attribute doesn't exist, mesh has no faces,
incorrect attribute type, etc. Exposing more messages to the system
will be an ongoing process. Multiple warnings per node are supported.

The system is implemented somewhat generically so that the basic
structure can also be used to store more information from evaluation
for the interface, like a list of available attributes.

Currently the messages are just button tooltips. They could be styled
differently in the future. Another limitation is that every instance of
a node group in a parent node tree will have the same error messages,
the "evaluation context" used to decide when to display the tooltips
must be extended to support node tree paths.

Differential Revision: https://developer.blender.org/D10290

USD import: uniform interpolation normals.

Added logic to import USD normals with uniform interpolation
(i.e., per-face normals) as Blender loop normals.

Fix T85671: color management crash with Medium Contrast look

Cleanup: Use consistent order placement for include

USD import: uniform interpolation normals.

Added logic to import USD normals with uniform interpolation
(i.e., per-face normals) as Blender loop normals.

Sculpt Expand: Refactor, more comments

Sculpt Expand: Cleanup, comments

Cycles: add integrator control flow utility macros and correct subsurface kernel

* The control flow macros do nothing yet, but help communicate what is happening
and may become useful. Perhaps for actual scheduling, or for debugging only.
* Subsurface should be scheduled after surface and do direct and indirect lighting
as per the design.
* Add INTEGRATOR_STATE_COPY to copy shadow path and volume stack state.

Cleanup: Used derived node in geometry exec params

Since the derived node tree is already build for the evaluation system,
it's simpler to pass a derived node to the params struct. This will also
allow context lookups in nested node groups for node error messages,
since the derived node has that information readily accessible.

Cycles: flesh out integrator kernels a bit more

* Add background kernel
* Add render buffer argument to kernels that need it
* Placeholder code to explain control flow and state access

Cleanup: Remove use of designated initializers in C++

Cycles: initial struct and macro definitions for integrator state

Remove "TODO"

Cleanup

Merge branch 'master' into temp-node-error-messages

Cleanup: Compile node_draw.c with C++

This will allow using C++ data structures to draw node error messages.
This required removing a forward declared enum for grease pencil undo.
Compiles with clang tidy.

Changes from review

GPencil: Fix problem when select interpolated strokes

The pairs were not calculated as expected.