Blender Git Loki

Cleanup: style

GPUTexture: Fix problem with glGenerateMipmap

Fix T56789: There was issue with certain driver with glGenerateMipmap and
GPU_DEPTH_COMPONENT24.
In this case we just create a complete texture with mipmaps manually
without downsampling / initializing the data.

GP: Improve errase panel and toolbars

Some names were not clear enough and some parameters were missing.

GP: Add pressure option to eraser size

GP: Some changes to eraser panel

Object Mode: Draw object center after the floorgrid

Object Mode: Make Flat object selectable in ortho view ...

... when wireframe is enabled

Object Mode: Make Flat object outline visible in orthographic view

Motion Paths: interactively update current frame location while dragging.

Motion Paths: only update once when transforming multiple bones or objects.

Fix object motion paths not updating correct after filtering optimization.

Fix OpenColorIO link errors in some Linux builds.

The library can get installed in a lib/static subdirectory, so search there
as well now.

Fix OpenColorIO link errors in some Linux builds.

The library can get installed in a lib/static subdirectory, so search there
as well now.

Cycles: Improved robustness of hair motion blur.

In some instances, the number of control vertices of a hair could change mid-frame.
Cycles would then be unable to calculate proper motion blur for those hairs. This adds
interpolated CVs to fill in for the missing data. While this will not necessarily result in
a fully accurate reconstruction of the guide hair, it preserves motion blur instead of disabling it.

GP: Fix T56802 - Add/Delete Vertex Group crashes

Cloth: Improve UI

This reorganizes the cloth UI, and changes some of the behaviour to be
more reasonable.

Changes included here:
* Reorganized cloth panels
* Improved some tooltips
* Removed `vel_damping` option
* Removed cloth pinning checkbox
* Removed stiffness scaling checkbox
* Separated shrinking from sewing
* Separated self collisions from object collisions

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D3691

GPU module: Initial implementation of the `gpu.shader` submodule.

Differential Revision: https://developer.blender.org/D3688

Depsgraph: Use default visibility of false

Avoids invisible objects from being considered visible when they
are used as driver variables.

If those cases are actually coming from a visible object, then
deg_graph_build_flush_visibility() will ensure visibility is
properly flushed there.

Depsgraph: Respect parent object visibility in more places

Mainly coverts object->parent and pose constraints.

Depsgraph: Make indirectly linked objects inherit visibility from parent

This way objects which are pulled into dependency graph via modifier
stack from an invisible object will be invisible.