Blender Git Loki

Fix ED_OT_undo_redo operator

finalised 1 = white and 0 = black for weight to vertex converter

Added Split/Merge normals.

Doesn't work on the basis of any weighting mode. Will have to implement that first. I'll add more methods as I progress in other areas.

first support for ptcache files for liquids

Changes in previous fix for T51942

The previous commit broken the stroke color update

Merge branch 'blender2.8' into greasepencil-object

Fix T51942: Color not updated in UI panel

When update the color in the panel, the color box was not updated after release control.

Progress on generated shape. Lots of smaller bugfixes parts are partially bridged.

Fix T51877: Deleting a scene uses freed memory

At the moment libblock_remap_data_preprocess is using
FOREACH_SCENE_OBJECT to iterate over all the objects of the scene and
unlink them.

However we were storing a reference to the Base of the removed object.
Anyways, the loop is now sanitized so that this crash no longer happens.

Also now we have an unittest for this.

Fix T50230: Rigid Body simulation shouldn't step when time is beyond cached area

This makes the last time (`ltime`) stored in the rigid body world (`rbw`)
only be updated once a simulation step actually occurs, this prevents
another simulation step from being solved unless the current time is
exactly one frame after the last cached frame. Thus this prevents the
formation of gaps in the cache, such as seen in T50230.

Reviewers: mont29, sergey, angavrilov

Tags: #physics

Maniphest Tasks: T50230

Differential Revision: https://developer.blender.org/D2458

Merge branch 'blender2.8' into greasepencil-object

Fix T51936: Show draw strokes since first stroke

The drawing stroke must not be related to cache drawing because only one stroke is done at time.

Better fix for isfinite problem - works in older gcc's too.

Previous fix relying on __cplusplus value didn't fix for older
gcc's on linux, but this fix does.

Minimize Alpha stroke issue

Here we need is OIT (Order Independant Transparency) which is still an open issue in the realtime field (and also for Eevee). The best OIT method I know of is somewhat complex and not very precise (still not 1:1 with the ordered version). It involves more framebuffers and performance cost.

I may need to implement that in the draw manager in the future so that all engines can use it.

Thanks to Clement Foucault for the support provided.

Eevee: Principled BSDF: add support for specular tint + optimisation

Only use clearcoat version if there is something linked or if the clearcoat value is not 0.

Eevee: Fix specular shadowing.

Compute luminance approximation instead of using green channel.
This is to match cycles principled bsdf.

Fix compile error after recent 9c2bbfb6 commit.

Older C++ compilers use finite instead of isfinite.

Fix T51721: OpenGL Detection is broken on Windows

Now computers that support OpenGl3.3 (but not 4.5) can run Blender 2.8.

For any given HDC, you may only call SetPixelFormat *ONCE* any future
calls for the same HDC will fail. And computers that would support only
OpenGL 3.3 wouldn't have a change to get a valid OpenGL context because
the pixelformat was already set while trying to probe the supported
contexts.

We fix this by splitting the final context creation from the query of
supported OpenGL versions.

Patch by Ray Molenkamp (bzzt_ploink/LazyDodo) with code style fixes and
comments by me.

added the weight to paint converter as option in paint in verte xpainting and weight in weight painting

Fix T51118: Outliner crash when unlinking collection

The outliner tree was not being rebuilt after unlinking a collection,
and thus a dangling pointer to the collection was kept in the tree.