Blender Git Loki

remove linear depth conversion. now clipping finally works as expected.

Annotations: Set better default name for new annotation layers

Note: Many of the add layer operators still need tweaks,
but this is a good start for the main ones.

Annotations: Restore color selector per layer

This shows up in the layer list, making it possible to quickly change it
inline, and to see what color the strokes in the layer are using.

Merge remote-tracking branch 'origin/blender2.8' into temp-eeveelightcache

# Conflicts:
# source/blender/gpu/GPU_texture.h
# source/blender/gpu/intern/gpu_texture.c

Eevee: LightCache: Write LightCache to File

This patch does a few things for it to work.
- It port some eevee's struct to DNA for them to be saved in the file.
- Readback the result of the lightcache baking and store it in the scene
struct.

For small scenes, it's okayish to keep the data around in memory but a
better approach would be to save it to disk.

A standard reflection probe is more than 6 MB of data.
Diffuse irradiance grids are relatively small compared to this.

GPUTexture: Refactor to have more flexibility.

New features:
- Get mipmap level size from a texture.
- Use explicit GPUDataFormat to specify how the input (or output) data
is formated when uploading (or reading) texture data.
- Can upload different mipmap level after base level.

Normal calculation for groom hull.

Enable faces for the groom bundle hull and fix index counts.

Restore a missing parametrization call

This commit partially reverts 85bfd5ef008229a00ffc3c007cc58cb539ef6589.

Enable shaded surface drawing for groom objects.

Cleanup: Fix comments

Render section poly for all regions.

Fix section drawing, so only section 1..(n-1) are drawn.

Cleanup: Reformat line

Cleanup and code reorganization

Fix problems with Blur FX

The FX passes needed BLEND state enabled to get the right result.

Also, the multisample texture does not need 32F and can back to the default 16F.

GP/Annotations: Provide usage hints about the "Poly" tool

Annotations: Don't respect the "on back" option

This is too complicated for an annotation tool

Remove "Continuous Drawing" flag/mode

* GP Object doesn't need this as it has a proper "Draw Mode"

* For Annotations, it just got in the way and was a confusing
modal+blocking nuissance that randomly activates when you just
want to draw a quick line

Use correct curvecache verts for drawing the center curve.