Blender Git Loki

Cleanup: use _len suffix

Fix scale-cage refresh w/ view orientation

Fix scale-cage editmode pivot point

Tool System: show bisect tool options

Fix T56752: Tooltip flicker alpha on redraw

Cleanup: style

Multires: Fix memory leak on reshape

Was happening when number of vertices didn't match.

DRW: Convert common theme color to linear for viewport render

This is not 100% correct (it should use a transfer function depending
on the display profile) but this is already much better than using srgb.

Subdiv: Initial implementation of CCG

Attempts to substitude CCGDM with an OpenSubdiv based structure
which has less abstraction levels. The missing part in this
substitude is a face pointers which old CCGDM/multires code was
using to stitch faces (averaging boundaries).

Another curial bit missing: "reshaping" of multires CD_MDISPS
to the state of new PBVH grids.

The new code is only available when OpenSubdiv modifier is
enabled (WITH_OPENSUBDIV_MODIFIER=ON) and with debug value of
128. This is so this WIP code is not interfering with current
production machines in the studio.

Reviewers: brecht

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D3685

DRW: Don't highjack all debug values (cont)

DRW: Don't highjack all debug values

Fix workspace order and shortcut keys not matching.

Eevee: Prepare for fullres tracing

Eevee: Fix downsampling shader with textureGather

This was leading to issues with all raytracing and AO algorithm.

Fix T55619

GPUMaterial: Fix issue with coloramp and constant interpolation

It was not respecting the clamp to edge texture param because we use
texelFetch directly in this case.

Cloth: Fix mistake in recent angular bending commit (b6f0f8a5b5a)

The angular spring force computation function was being called even in
linear mode, with empty angular springs.

Followup for previous PBVH commit

Didn't realize the index buffer is stored once in a BVH
and same pointer is reused. Surprisingly, simple files
were fixed with the previous fix.

Now disabled the optimization all together, and it was
simpler to just completely remove all residue of the
code. It is likely to be a different implementation
anyway, so no need to try to keep code in a semi-broken
state.

GPUVertBuf.fill: support for objects with buffer interface.

Differential Revision: https://developer.blender.org/D3684

FIx/workaround wrong number of primitives in PBVG grid buffers

Nodes can have different number of grids, so can not so simply
re-use index buffer across nodes. For now allow re-using buffer
if number of grids matches.

The issue is, number of grids is probably almost never matches,
so in order to have this optimization working need more tricks.
Maybe we can "instance" index buffers?

UI: fix redo panel becoming permanently hidden