Blender Git Loki

Cycles: Cleanup: Remove duplicated atan2f definition for OpenCL

Turns out that atan2f was already defined for OpenCL.

Flatty Light

Add new Status Bar settings and minor tweaks to axis colors inspired by Andy's changes to the theme.

Cycles Denoising: Don't use atomics in the accumulation kernel on CPUs

The GPU kernel needs to use atomics for accumulation since all offsets are processed in
parallel, but on CPUs that's not the case, so we can disable them there for a considerable speedup.

UI: use icons in render menu

Keymap: remove Ctrl-Up/Down to toggle full-area

This is already accessible via Shift-Space which can be accessed
easily with one hand.

Always get a reference point when snapping with the projected elements option enabled.

UI: View menu area operators now in submenu

COW Fix: Border selecting bones on rigs broke

Annoyingly, this was working as recently as yesterday...

UI: disable view context w/ OpenGL anim render

The 3D view menu can GL render from a single view

UI: remove render panel, move operators to menu

Revert "UI: remove 'Render' top level menu"

This reverts commit 10e43c0aef38647d8904e758e36261c9ac0b6460.

After discussion, it's useful to have render menu
for more obscure render options.

Drivers UI (Part of T55145) - WIP first steps towards getting a floating driver settings panel

This commit adds a new menu entry - "Edit Driver" - the RMB menu that
will show a popover panel displaying the settings for the driver you
activated the menu item on. This shows the popover panel defined in
yesterday's commit (GRAPH_PT_drivers_popover).

It is possible to edit the driver settings from this panel now.
However, do be warned that the functionality presented is highly
WIP still. There are some unresolved issues, such as:
- The popover disappears too easily on any mouse movements/clicks
on anything, making the panel less useful right now than it should.

- The layout still needs refining. Currently the layout that's there
is a bit of a placeholder until we can play around with it a bit
more to see/feel what feels good/right or what is too much.

- The "Open Drivers Editor" on the bottom of the panel doesn't work.
There are some tricky context tricky things that need to happen here
to make that case work, since the operator button won't have the necessary
context info.

Fix typo in editmesh edge delete

UI: add top-level 'Edit' menu

Use this for undo/redo, copy/paste & preferences.

Cycles/Compositor: Add arctan2 operation to the Math node

The Math node currently has the normal atan() function, but for
actual angles this is fairly useless without additional nodes to handle the signs.

Since the node has two inputs anyways, it only makes sense to add an arctan2 option.

Reviewers: sergey, brecht

Differential Revision: https://developer.blender.org/D3430

Merge branch 'master' into blender2.8

Cycles/Eevee: Implement disk and ellipse shapes for area lamps

The implementation is pretty straightforward.

In Cycles, sampling the shapes is currently done w.r.t. area instead of solid angle.

There is a paper on solid angle sampling for disks [1], but the described algorithm is based on
simply sampling the enclosing square and rejecting samples outside of the disk, which is not exactly
great for Cycles' RNG (we'd need to setup a LCG for the repeated sampling) and for GPU divergence.

Even worse, the algorithm is only defined for disks. For ellipses, the basic idea still works, but a
way to analytically calculate the solid angle is required. This is technically possible [2], but the
calculation is extremely complex and still requires a lookup table for the Heuman Lambda function.

Therefore, I've decided to not implement that for now, we could still look into it later on.

In Eevee, the code uses the existing ltc_evaluate_disk to implement the lighting calculations.

[1]: "Solid Angle Sampling of Disk and Cylinder Lights"
[2]: "Analytical solution for the solid angle subtended at any point by an ellipse via a point source radiation vector potential"

Reviewers: sergey, brecht, fclem

Differential Revision: https://developer.blender.org/D3171

Fix all modifiers that depended on BKE_modifier_get_evaluated_mesh_from_object

This fix applying the following modifiers:
* Boolean (working already)
* Array
* Mesh Deform
* Surface Deform
* Vertex Weight Proximity

This function was to return evaluated mesh. So it should get the evaluated
object at all times. So in this case it makes more sense to simply pass the
depsgraph (or in this case the ModifierEvalContext that contains both the
depsgraph and the flag.

Solution discussed with Bastien Montagne.

3D View: remove poll 3D view for copy/paste

These operators only need selected objects.

UI: remove 'Render' top level menu

- Toggle render window is in the window menu.
- OpenGL render settings in the 3D View menu.
- Playback animation in the render panel.