Blender Git Commits

PyAPI: fix memory leaks in dictionary assignment

Thanks to K�vin Dietrich for spotting driver leak,
checked other uses of PyDict_SetItem and found more.

PyAPI: Use module names on initializaton

No need to re-convert from C strings to PyUnicode.

Improves the accuracy of snap to edges

Recently the snap to edges has been changed to work with coordinates 2d. Thus, the lambda of the snap pointon on edge becomes different from the actual lambda in a 3d edge.

The solution to correct the lambda was this:

```
if (is_persp) {
const float fac = depth_a / (depth_a + depth_b);
lambda *= (1.0f + (fac - 0.5f) * (1.0f - lambda));
````

...
But the lambda was still not very accurate.
Now the function uses the `dist_squared_ray_to_seg_v3` to get the coordinate of the snap point on the edge. And then tests that point.

The accuracy returned to normal values.

Cleanup: style

Use BLI_endian_switch in dna_genfile

Simplify snapping functions

from D2104: reference all repeated (and strange) equations (example: mul_m4_m4m4(pmat_local, pmat, obmat)) in the function `precalc_project.

This is useful for maintenance.

Fix T48846: Ruler/Protractor crash in ortho mode

Error in recent snap changes.

Fix T48845: Crash when right-clicking on a curve property

Caused by typo in rBd2312602125a452e6562a76ab91779943c67396d

Fix T48734: Driver not updating when using Single From Driver within same object

Fix T48839: Selection from pose mode gives wrong snap results

Current code changes the selection then then runs ED_armature_sync_selection
to copy to the bones rootsel flag from the parents tipsel.

Use this logic for entering edit-mode too.

Boolean Modifier: Add back BMesh option

There are still issues with overlapping geometry,
however some of the issues reported are are causing problems,
or fail entirely with Carve too.

Depsgraph: Make proxy behavior closer to old depsgraph

Fixes possible missing update of proxy_from pointer before using
it in relations builder.

Revert "Depsgraph: Russian electric tape bodge to have multiple proxies work"

This reverts commit 47d0d9cca4d0c3ccbdc368e97fc24652379fd368.

Reverting the commit. Not only it did not solve all the cases of proxy popping,
but also broke real cases with single proxy involved.

Depsgraph: Accumulate object layers from all bases

This solves bug when same object is instanced from multiple bases.

Use BLI_bvhtree_walk_dfs for snapping

The snapping functions when performed in the perspective view,
have some problems in the threshold (a distortion) and in the clip plane (the normal is incorrect).
These problems can be only observed when making the snap to edges or to vertices (nearest to ray function).

This patch propose a totally different solution.
The idea is to project the edges of bvh nodes and test the 2d projection of the snap element.

For this it used the BLI_bvhtree_walk_dfs function.

It is important to pay particular attention also to the changes in `ED_transform_snap_object_project_view3d_ex`

Vertex/Weight Paint: Support view-selected on last-stroke

D1875 by @lichtwerk

Fix 48831, Step II: UI icon code was not able to update/generate 'auto ID icon' from non-ID icon draw code.

Now using generic icon rendering system in that case too, instead of custom code
which was only handling 'deferred' custom file-loaded icons.

Fix 48831, Step I: Mismatch issues bewteen ID icon and preview system.

- icon_id from ID and PreviewImage were not guaranteed to be in sync.
- PreviewImage one was not reset on file read.
- Through RNA e.g., it was possible to ensure an ID icon via its preview image,
which was running code designed for custom previews/icons system, instead
of generating correct 'auto ID icon'.

Revert "OpenJPEG: update to 2.1 from 1.5"

This reverts commit f12204196fb1ee985ab9745cf9c70877601145f9.

Campbell, sorry. have to revert this for the time being.

We've missed some very important bits, such as:

- FFmpeg is usually linked against OpenJPEG
- OIIO needs OpenJPEG as well.

For FFmpeg issues we can either disable OpenJPEG there (since
we don't really use it), or bump FFmpeg to version 3.1.1 which
can use either of OpenJPEG 1.5 or 2.1.

For OIIO we do need OpenJPEG support (otherwise Cycles will
not be able to use j2k/j2c textures) and currently there is
NO solution to make OIIO working with OpenJPEG 2.1.

According to Matthias Fauconneau (aka mfv) Larry is working
on the patch to get OIIO work with OpenJPEG 2.1, but it'll
take some time still.

I've tried to look into support of some sort of build system
flag and do ifdefs, but it all becomes quite nasty, especially
with bundled OpenJPEG bumped to 2.1.

Surely such an update is something we'll have to apply to
but at this exact moment it causes quite some pain for all
developers.

Suggest to wait for until OIIO supports OpenJPEG 2.1 and then
go with the updates for real.

Fix T48818: Objects with alpha maps cast wrong ray shadows in BI