Blender Git Loki

Cleanup: GPUVertBuf: Replace TRUST_NO_ONE by BLI_asserts and ifdef DEBUG

GPUVertBuf: GL Backend Isolation

Part of the Vulkan port T68990

This makes a few changes in how the data is being handled by the
backend to allow more flexibility in the future.

The overall code logic is left unchanged.

GPUVertBuf: Rename GPUVertBuf to VertBuf and add some getters

to avoid more typecasts.

Docs: add note on updating startup defaults to dna_defaults

Without this it's not clear which defaults these values are used for.

Fix T80531: Dope Sheet Shape Key Editor search/filter not working

Looks like this has just not been implemented before.
Use the name matching method used in other Dope Sheet UI modes.

Maniphest Tasks: T80531

Differential Revision: https://developer.blender.org/D8824

Merge branch 'greasepencil-edit-curve' into soc-2020-greasepencil-curve

Included `world_block` UBO in the shading groups for volume in Workbench when slicing is used to avoid 'Missing UBO bind' error as in P1616.

Merge branch 'master' into greasepencil-object

Merge branch 'master' into greasepencil-edit-curve

Cleanup: update comment after Clang-Tidy bugprone-incorrect-roundings fixes

Remove the comment about adding `0.5`, as this is no longer done (since
fb5e2f56109e).

No functional changes.

Fix mistake in Clang-Tidy bugprone-incorrect-roundings fix

Remove a `+ 0.5` that I overlooked in fb5e2f56109e.

EEVEE: Shaders tests

This will add the remaining static shaders to the eevee shader test suite.

- Downsampling
- GGX LUT generation
- Mist
- Motion Blur
- Ambient Occlusion
- Render Passes
- Screen Raytracing
- Shadows
- Subsurface
- Volumes

Reviewed By: Cl�ment Foucault

Differential Revision: https://developer.blender.org/D8779

Cleanup: spelling

Also correct wrapped lines of example code in threads.cc.

Cleanup: OBJECT_OT_collection_instance_add

Minor changes to match OBJECT_OT_data_instance_add.

- Access properties once & reuse them.
- Early exit when the data to instance can't be found.

Cleanup: use doxy comments in object.c

Cleanup: remove redundant scene argument in BKE_object_add

Fix OBJECT_OT_data_instance_add creating empty data-blocks

ED_object_add_type creates empty object data, add
ED_object_add_type_with_obdata which can take existing object data.

use getters and setters for Object

use getters and setters for Shader

some notes:
- needs some for members only used in Cycles as well
- check usages of tag_update and need_update_geometry
- pass_id is now a socket

use getters and setters for Background