Blender Git Loki

Support saving tiled images

Cleanup 2D tiled painting code by adding a temporary ImageUser

Cleanup: remove image->bindcode, always wrap in GPUTexture.

This simplifies code, and will hopefully make UDIM usage of GPUTexture
a little easier.

Support 2D painting onto tiled images

Currently, a limitation is that strokes can not cross between tiles, only the tile in which the stroke started will be affected.

Revert "Cleanup: remove image->bindcode, always wrap in GPUTexture."

This reverts commit 8242a5bc853a74da1273fc7ad4b959ac716c563c. This isn't
quite ready to use yet.

Cleanup: remove image->bindcode, always wrap in GPUTexture.

Reenable clump feature for fibers with a simpler taper function.

Using the smoothstep function for taper means the hair stay parallel
after a certain distance, which seems a bit more realistic as well as
giving more control.

Change out-of-bounds color for tiled images in GLSL to match missing images

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

Support tiled textures in the viewport and in Eevee

Fix part of T55439: don't add indirectly linked objects to the scene on link.

Drivers: ensure Python expressions are cached with copy-on-write.

Store the compiled expressions on the original driver.

Ref T55442.

Add commonly used strand draw settings to the hair system draw settings.

Cleanup: fix compiler warnings.

Fix accidental addons submodule change in previous commit.

Fix crash with OpenGL rendering in multiple threads on macOS.

On macOS we must always go through BLI_thread_local_get/set().

Differential Revision: https://developer.blender.org/D3470

Merge branch 'master' into soc-2018-hair-shader

Use the latest Week 5 commits for build

Pose: optimize pose rebuild for copy-on-write.

Ref T55442.

Cleanup: store and retrieve parameters consistently

Cleanup: add simplified panel callbacks