Blender Git Loki

GP: Make Multiply blend works with opacity

Cleanup: style, includes

Fix T57930 : Wrong hair shading in particle edit mode

Implement strand selection visualisation but without any shading.

I think this is not the overlay job to draw the strands shaded.

We can already view the children strands shaded for now but we might add
an option to draw the shaded strand instead of (or in addition to) the
guide strand.

DRW: Cleanup: Fix missing uniform warning in curve edit mode

DRW: Hair: Fix hairs not working properly with duplis

Fix T55355 Instanced hair not working well for EEVEE and workbench

DRW: Add access to object dupli parent

MOD_shrinkwrap: do not compute mesh when not needed.

This modifier only uses mesh to get vgroup, which is only needed in case
modified object is indeed a mesh! Building a mesh from curve here is not
only useless and time-consuming, it will also easily fail the assert
about same number of vertices!

Note that surface_project and subsurf option also need more work at some
point, but this is probably not that urgent for now.

Also, use MOD_get_vgroup() helper in modifier code itself and pass
resulting MDeformVert & index to BKE_shrinkwrap's `shrinkwrapModifier_deform()`,
this is simpler and avoids duplicating vgroup handling code.

Related to T57972.

MOD_curve: do not compute mesh when not needed.

This modifier only uses mesh to get vgroup, which is only needed in case
modified object is indeed a mesh! Building a mesh from curve here is not
only useless and time-consuming, it will also easily fail the assert
about same number of vertices!

Also, use MOD_get_vgroup() helper in modifier code itself and pass
reluting MDeformVert & index to BKE_curve's curve_deform_verts(),
this is simpler and avoids duplicating vgroup handling code.

Also fixes crash when used on lattice.

Related to T57972.

MOD_cast: do not compute mesh when not needed.

This modifier only uses mesh to get vgroup, which is only needed in case
modified object is indeed a mesh! Building a mesh from curve here is not
only useless and time-consuming, it will also easily fail the assert
about same number of vertices!

Also fixes crash when used on lattice.

Related to T57972.

Timer: Generic BLI_timer with Python wrapper

There is a new `bpy.app.timers` api.
For more details, look in the Python API documentation.

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D3994

UI: rename "OpenGL" render engine to "Workbench".

Neither is very descriptive for its task, but at least workbench is more
future proof and distinguishes it from Eevee.

Fix broken face select in paint modes with RMB select.

Viewport: implement hiding faces in paint modes.

In 2.79 hiding works in paint modes with selection enabled,
so it is a missing feature. This implements it in texture
paint overlays and in workbench base shading.

Reviewers: fclem

Differential Revision: https://developer.blender.org/D3989

GP: New Blend Layers functionality

Now it's possible define the blend mode between layers including the option to clamp the layer using underlying layers.

Also a new Simplify option has been added to disable blend layers.

Workbench: Add Curvature overlay for better visibility of surface detail for e.g. sculpting

The approach is fairly simple, just apply an edge detection filter to the view normal and scale the brightness based on that.

The overlay is disabled at object boundaries to avoid dark lines around objects.

Generally, this implementation follows the proposal of @monio at https://blender.community/c/rightclickselect/J9bbbc.
The changes are:
- Dynamic filter radius (on high-DPI displays, a radius of two is used)
- Options to reduce the strength of both ridges and valleys
- Tweaked function for the strength reduction (the original method actually had a local maximum, resulting in a brighter line inside valleys)
- Multiplication for blending instead of overlay, which doesn't work reliably with scene-referred intensities
- Renamed to point out the distinction between it and the SSAO-based cavity overlay

Reviewers: jbakker

Reviewed By: jbakker

Subscribers: billreynish, manitwo, linko, monio

Differential Revision: https://developer.blender.org/D3617

Fix view layer set in the outliner of child window not syncing to parent window.

Keymaps: for LMB keymap, add ctrl+LMB to select bones in weight paint mode.

Keymaps: don't do CLICK event when PRESS was already handled.

This fixes conflicts where the tool and editor keymap use different event
types. Tools need to be able to mouse buttons on PRESS without triggering
CLICK events in the editor keymap.

Enable OpenSubdiv modifier by default

This commit makes it so that subsurf/multires modifiers will respect
the WITH_OPENSUBDIV option. The WITH_OPENSUBDIV_MODIFIER option is
now gone.

For artists it mean that subsurf modifier will behave same as it is
planned for 2.80. Multires will now support sculpting, but it has some
known limitations. Those will be worked on before the final release.

If OpenSubdiv is disabled, no subsurf/multires functionality will
present.

For the details see:

https://wiki.blender.org/wiki/Reference/Release_Notes/2.80/Modeling#Subsurf.2FMultires

Hide OpenSubdiv compute device

That is only used by GPU side of OpenSubdiv, which was not yet
brought back.