Blender Git Loki

VSE: Add bold and italic option for text strip

Bold and italic fonts can be switched quickly by presing corresponding
button.

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D10542

VSE: Text strip improvements

- Position text in center of image
- Increase default font size so it's more visible
- Increase font size limit
- Increase limit for location, so text can be scolled off screen
- Wrap text by default
- Tweak default box and shadow color
- Change text shadow position
- Text box no longer casts shadow

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D10571

VSE: Preview images when moving strip handles

Add option to override current frame whem transforming strip handles.
Option can be found in View menu of VSE preview, or in timeline when
using backdrop.

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D10424

VSE UI: Cleanup scene panel style

- Make properties alligned
- Add decorate to volume
- Add heading to Grease Pencil and Transparent

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D10663

Fix T85824: Transition between adjustment regression

When transition effect is placed between 2 adjustment layer strips,
only first adjustment layer was rendered by effect.

Limit timeline_frame range to adjustment strip frame range.

This timeline configuration is technically invalid, because strips
should overlap when using transition effect. This was never restricted
and instead of producing no image, transition effect used first and
last frame of source strip. Many users got used to this "feature" so
I think it make sense to fix this case so it behaves like other strip
types.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D10562

Fix T86355: Added effect strip has wrong length

SEQ_add_effect_strip used SeqLoadData.image.end_frame to set end
frame. This was mistake introduced in last refactoring patch.

Use effect data, not image data, when adding effect strips.

Reviewed By: sergey

Differential Revision: D10633

Theme: Use curved noodles in the nodes editor.

Curved noodles increase readability especially in nodes with multiple input sockets.

Nodes: implement dot graph exporter for derived node tree

This visualization of nested node groups makes it easier to debug
some issues. Muted nodes, muted links, reroute nodes and unavailable
sockets are removed from the visualization to keep it clean.

Nested node groups are visualized using colored clusters.

Nodes: expose tree name and whether a node is a frame in node tree ref

Geometry Nodes: fix crash when inserting certain invalid links

For example, it would crash when connecting a float to a geometry socket,
under some circumstances.

Fix T86728: Blender freezes when playhead is dragged in this .blend

Porting the deadlock bugfix in WASAPI from upstream Audaspace.

Nodes: provide access to type specific data through node tree ref

Nodes: make distinction between directly and logically linked sockets more clear

This also moves the handling of muted nodes from derived node tree to
node tree ref.

EEVEE: Lights: Add Volume and diffuse light power slider

This adds 2 new sliders for light objects that modulates the diffuse
light and the volume light intensities.

This also changes the way volume light is computed using point lamp
representation. We use "Point Light Attenuation Without Singularity"
from Cem Yuksel instead of the usual inverse square law.

EEVEE: Volumetrics: Fix sun volumetric shadow

Sun lights are treated as distant light source and need to gather
shadowing from the full frustum.

This might have performance impact on certain scenes.

EEVEE: Volumetrics: Add special attenuation volume for lights

This makes volume lights more efficient if they have lower power.

EEVEE: Volumetrics: Add Area light shape support

Previously area lights were just considered as point lights.
We now use a "most representative point" technique that make the
light shape appearant and gives more homogenous result.

This technique is quite cheap but it is not physically correct.

So I came up with a power function to have almost the same intensity
output as cycles in the general case.

EEVEE: Volumetrics: Add support for soft volumetric shadows

Soft surface shadows were already supported but now we support
soft shadows of the volume themselves.

This is only enabled if the light casts shadow and the scene soft
shadows toggle is enabled.

EEVEE: Volumetrics: Add back support for light clamp

The new clamping works by modifying the lamp internal radius which
then soften the light contribution.

However this does remove more light compare to the old solution.
This is because the clamp now affects the light over a much larger
distance since it is smoother. Old scene needs manual tweaking.

LineArt: Add missing modifer and sanity checks to bake operator

Previously we could crash because we would not check if the modifier in
question actually was a line art modifier. We also did not query if the
modifier was disabled.