of the special objects (F2+, F+ and F0 centers) in the section 'Change atom shape'
got updated for eevee and cycles.

for both, Eevee and Cycles, is sufficient, no need to have an additional
ball with emission for Cycles.

This shouldn't have had an effect, since the soft max was
larger than the max, but it is still incorrect. Caused by a
typo in rBA104ba1c5682016a55. Thanks to @MKRelax
for pointing this out.

Add option to export Bezier curves' left and right handle types

section 'Change atom shape' got updated for eevee and cycles.
There are also a few adjustments of the values of both importers
(PDB and XYZ).

Eevee is re-inserted (I forgot that this is needed for Eeve) and the transparency
material properties of the vacancies when using Eevee have been changed: the
cubes show now a nice transparency.

PDB and XYZ files, are shown as transparent cubes. The properties of the transparency
have been changed and are now much better ... . The user can certainly adjust these
properties after the import.

as a 'point' light source. In material properties, the sphere has the
node called 'Emission'. Note that the light source as well as a camera
can be **optionally** chosen, they are not set by default.

by using nodes (material properties). The color used in the viewport shading
('solid mode') has been removed since it doesn't make sense anymore. Otherwise
one always has to manually choose 'using nodes' in the material properties.

- Clear the IK toe control animation in the relevant operator.
- Allow changing the euler order of finger master control via metarig.

from an atomic structure in the 'EDIT' mode has lead to a crash of Blender. With the
changes done, there is no crash of Blender anymore.

This reverts commit f0f48da2.

Check before, if the user is in the 'EDIT_MESH' mode. If so, change to 'OBJECT' mode.

When importing a PDB file, the user has to be in the 'OBJECT' mode. With the changes
in the code, this mode is automatically set before the PDB import. No error message should
appear when the 'EDIT' mode is still active.

When importing a PDB file, the user has to be in the 'OBJECT' mode. With the changes
in the code, this mode is automatically set before the PDB import. No error message
should appear when the 'EDIT' mode is still active.

The add-on file had the license as GPL2, but for it to be compatible
with Blender it has to be GPL or later.

It's handy being able to track where fbx files originate from.

Reviewed By: mont29

Differential Revision: https://developer.blender.org/D13788

As part of Fbx Export, while handling Armature modifiers for Meshes, each
armature's position is backed up, then put into REST position for exporting,
and then restored back to original position. A dependency graph update is
triggered at the end of this.

This commit avoids the whole backing position setting + depsgraph update in
case the armature is already in rest position.

As an example, a model which I am developing for a game used to take
20 minutes for the Fbx Export. After this change, it only takes 20 seconds.

Reviewed By: mont29

Differential Revision: https://developer.blender.org/D13712

The addon would assume an OBJ range of [0.0-900.0] for the Ns value,
when it actually is supposed to be [0.0-1000.0].

WARNING: This is introducing a slight incompatibility (value shifting of
the roughness parameter) with older OBJ files exported by Blender.

Currently the leg rig tries to share one control between IK and FK
modes, which looks as a nice optimization at first, but makes it
impossible to IK/FK snap correctly if the IK foot is rolled forward.

This commit adds an option to generate separate toe controls.

Spliting edges for this purpose is doing more harm than good,
additionally not all DCCs import PLY normals anyway, including Blender.

Contributed by luzpaz.

Differential Revision: https://developer.blender.org/D5801

Contributed by luzpaz.

Differential Revision: https://developer.blender.org/D5801

New geometry traversal code, use bmesh data instead of mesh,
simpler logic.

This also fixes split faces when exporting normals and vertex colors.

Exporting UVs still results in split faces, since UVs are stored in
vertex data (not sure if PLY format limitation or just this exporter)
faces has to be split along seams in order for each vertex to corespond
with each UV coordinate.

No performance benefits this time.

This reverts commit 7f4c2d5e.

Issues with unit tests.

Existing IK & FK controls only allowed squash and stretch scaling.