It still warns the user that there may be an error, but the baking goes
on. Also using the new is_uniform_scaled_m4() instead of float comparison.
Reported and fix suggested by Campbell Barton as a concern over 2bfc3deb
The remaining functions in blender_python.cpp changed from using the
MACRO to use python_thread_state_save/python_thread_state_restore
Since this bug only happens when 'Persistent Images' is on it was
introduced in some of the early merges with master and I never caught
it.
Thanks Daniel Salazar for helping with the bug hunting.
If we are using a mix node we still need to evaluate the BSDF lighting
even if scattering is successful.
Note: this was working for branched path (probably an oversight when
branched path support was introduced for baking, a good oversight though
;)
The scene file provided by the problem report has many degenerate faces coming from
a particle system. These zero-area faces were not expected in the ray-casting line visibility
algorithms of Freestyle. Now degenerate faces are properly excluded from the imported
mesh data and not fed to the line visibility algorithms.
The new recursion check for groups duplicating themselves has to un-set the LIB_DOIT flag after each object, otherwise it will prevent duplicating a (non-recursive) group multiple times.
To get the versioning code properly work, the condition should have been:
DNA_struct_elem_find(fd->filesdna, "FreestyleLineStyle", "MTex", "*mtex[18]")
The present commit uses another new structure member instead, to avoid referring
to the magic number 18 in the last string literal.
This was because to the filtering code, those FCurves still weren't in any
groups, and so couldn't be visible (since a temporary group is created to
house them). As a result, the visible-channels list would be empty, causing
all hidden FCurves to be treated as hidden.
These were broken by 1f3655d224, since
an argument of the wrong type was getting passed to ANIM_animdata_filter(),
resulting in no channels ever being picked up for the "visible channels" list.
Turned out there was still quite a few cases were indices were set dirty,
but elem_index_dirty was not tagged accordingly (mostly for BM_LOOP,
but a few others as well). So probably this crash was not the only one
hidden here.
Hopefully all possible cases were catched this time!
This fixes most of the cases, the only situation not addressed is when
the highpoly object(s) has non-uniform scale.
mul_transposed_mat3_m4_v3() should take care of non-uniform scales so
I'm a bit confused on why it doesn't work. The lowpoly object can have
any transformation, the only issue is if the highpoly object has
non-uniform scale.
Test file of the remaining issue:
https://developer.blender.org/file/info/PHID-FILE-tpw2xgddyzxtpg3e7xzs/
Reference reading:
http://www.unknownroad.com/rtfm/graphics/rt_normals.html
bleeding at the symmetry edges.
We need an extra way to detect if faces overlap here. An easy way is to
detect the winding of the faces in UV space. If the winding differs, the
faces will naturally overlap. I have tried a few approaches here such as
choosing an offset point from the middle of the edge for intersection in
both faces of the edge in uv space, but winding is the safest way and
should work with very small faces/dense meshes too.
Check that up_axis is not aligned with bone was wrong in at least two aspects
(not working against negative alignement case, and since ages it seems,
using Z axis when bones are along Y axis...).
Also optimized a bit here, better to have a normalized version of vec_roll_to_mat3(),
since it needs normalized vector anyway, and we have to normalize it for the tests
before calling it anyway (so now, we only do that twice in Transform code, instead
of three times).
And we can perform aling test *before* calling vec_roll_to_mat3!
This information only really seems to be for helping developers track
down bugs, and isn't really something the user needs. So, lets not spam
their console.
The bug was caused by using negative numbers as the end for playing forever (or until the end of the sound is reached) in the library. This was used with speaker objects which have an end of FLT_MAX now instead and the negative number interpretation was removed. I hope this doesn't break anything else.
Revert small part of own rB8714ae09f894, which changed scale setting from absolute to relative
(was good in absolute, but bad because it breaks existing rigs).
