Blender Git Loki

Cleanup: doxy sections for walk/fly operators

Cleanup: redundant parenthesis

Cleanup: unused variables

Fix T75414: Incorrect masking in Color Balance modifier

Color balance factor was infinity. Clamp to +/- `FLT_MAX`

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D7884

Cleanup: Remove goto statements from strip rendering functions

Remove goto statement from `seq_render_image_strip()` and `seq_render_movie_strip()`.
`seq_render_image_strip_view()` and `seq_render_movie_strip_view()` is used to render individual views in both monoview and multiview branch.

I have included `seq_can_use_proxy()` for convinience

Reviewed By: sybren

Differential Revision: https://developer.blender.org/D7870

Fix T73056: Cache not invalidated in fade operator

This operator is written in python it is inserting keyframes to create fade
effects.

Add Sequence.invalidate() python function to invalidate strip if it is
changed in python.

Perhaps I could implement cache invalidation to actual curve manipulation.
I guess it wouldn't be very hard to do but having means to invalidate form
python is useful as well.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D7885

VSE: Fix assigning effect strip inputs

Partialy fixes T73828

Currently all 3 effect inputs were assigned even if not all 3 were used.
This causes problems with reassigning effects in python, because 3rd input is
not accessible.

This patch will only assign inputs that are necessary for effect to work
properly.

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D6868

Cleanup: Remove unused code from `seq_proxy_get_fname()`

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D7868

Fix T66390: Update missing when snaping strips.

Effect strips bound recalculation was mixed with overlap handling, which
caused, that effects wasn't handled.

In some cases there may be problem with order of strips in seqbase. We should
traverse hierarchy instead. This is design issue that applies to all
operators, and should be fixed separately.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D7880

Transform: Snap to the intersection between constraint and geometry

This commit changes the behavior of 4 snapping combinations:

**1. While constraining to a plane, snap to an edge element:**
The snap is made at the intersection between the edge direction and the
constraint plane.

**2. While constraining to a plane, snap to a face element:**
The snap is made to the nearest point between the snap point and the
line that intersects the face plane with the constraint plane.

**3. While constraining to an axis, snap to an edge/line element:**
The snap is made to the nearest point on the axis to the edge/line.

**4. While constraining to an axis, snap to a face element:**
The snap is made at the intersection of the axis and the plane defined
by the face.

To avoid unpredictable jumps outside view boundaries, an alignment
check is made for each of these snapping combinations.

Resolve/fix T66422

Differential Revision: https://developer.blender.org/D5608

Outliner: Fix (unreported) object select in multiple collections

Previous commits to fix parent selection introduced incorrect behavior
when selecting objects linked to multiple collections. The clicked
object would be selected, but also the first listed object in the tree
would be selected.

Instead of always searching for a parent object to select, only search
back when the selected element is not an ID_OB. This prevents multiple
selection of objects linked to multiple collections.

GPencil: Chnage default Vertex Color mode to Stroke and Fill

The previous value was Stroke only.

GPencil: Fix unreported Vertex Opacity Overlay not working

This values was not working because was removed by error in refactor.

Reviewed By: mendio, fclem

Differential Revision: https://developer.blender.org/D8061

UI: Match some properties set in keymaps with those set for buttons

This allows the operator's shortcut to appear in the context menu.

Except for the shortcut display, there is no functional change from the
user's point of view.

This fix T77839

Cycles: Add new Sky Texture method including direct sunlight

This commit adds a new model to the Sky Texture node, which is based on a
method by Nishita et al. and works by basically simulating volumetric
scattering in the atmosphere.

By making some approximations (such as only considering single scattering),
we get a fairly simple and fast simulation code that takes into account
Rayleigh and Mie scattering as well as Ozone absorption.

This code is used to precompute a 512x128 texture which is then looked up
during render time, and is fast enough to allow real-time tweaking in the
viewport.

Due to the nature of the simulation, it exposes several parameters that
allow for lots of flexibility in choosing the look and matching real-world
conditions (such as Air/Dust/Ozone density and altitude).

Additionally, the same volumetric approach can be used to compute absorption
of the direct sunlight, so the model also supports adding direct sunlight.
This makes it significantly easier to set up Sun+Sky illumination where
the direction, intensity and color of the sun actually matches the sky.

In order to support properly sampling the direct sun component, the commit
also adds logic for sampling a specific area to the kernel light sampling
code. This is combined with portal and background map sampling using MIS.

This sampling logic works for the common case of having one Sky texture
going into the Background shader, but if a custom input to the Vector
node is used or if there are multiple Sky textures, it falls back to using
only background map sampling (while automatically setting the resolution to
4096x2048 if auto resolution is used).

More infos and preview can be found here:
https://docs.google.com/document/d/1gQta0ygFWXTrl5Pmvl_nZRgUw0mWg0FJeRuNKS36m08/view

Underlying model, implementation and documentation by Marco (@nacioss).
Improvements, cleanup and sun sampling by @lukasstockner.

Differential Revision: https://developer.blender.org/D7896

UI: Solve crash with move to index in modifier menu

UI: Improve Modifier Panel Header Menu

This makes a few changes to the modifier panel header:
1. Adds "move to top" and "move to bottom" buttons.
2. Adds a checkmark icon for "apply"
3. Makes it narrower, the text is closer to the dropdown icon.
(Requires the change in ui_block_func_POPUP)

Differential Revision: https://developer.blender.org/D8040

UI: Modifier Panel Header Improvements

This includes a few improvments:
1. Always expose delete. This is the button everyone wants the most,
it makes a lot of sense to expose this.
2. Improve "name hiding capability." Basically always align the mode
buttons to the right, and count their number to see if the name fits.
3. Aligns more items, to look better, save space, and make the whole
header seem more grouped.
4. In my tests the "switch contexts" button never coincides with the
delete button, so they share the same space.

Differential Revision: https://developer.blender.org/D8037

UI: Ctrl-click on panel header expands & collapses subpanels

If the panel is already open and you ctrl click on its header, its
sub-panels are now expanded / collapsed instead of toggling the
expansion for all other panels. If you're toggling a panel's expansion
it's already in view anyway, so there is no need to collapse the
other panels.

Differential Revision: https://developer.blender.org/D8042

Buildbot: Cleanup, remove unused script and change naming

Follow upstream convention.