Blender Git Loki

Depsgraph: Avoid some false-positive time dependencies of scripted drivers

This was quite weak to consider all scripted expression to be time-dependent.
Current solution is somewhat better but still crappy. Not sure how can we make
it really nice.

Depsgraph: Report proper error when modifier fails to create relation link

Depsgraph: Fix race condition writing drivers to array property

Animation system has separate fcurves for each of array elements and
dependency graph creates separate nodes for each of fcurve, This is
needed to keep granularity of updates, but causes issues because
animation system will actually write the whole array to property when
modifying single value (this is a limitation of RNA API).

Worked around by adding operation relation between array drivers
so we never write same array form multiple threads.

Depsgraph: Fix wrong comparison of ID type vs. node type

Partial fix for T49836: Camera DOF properties not updating via graph editor

Do this for the new dependency graph: was missing handle of OB_UPDATE_TIME in tag update.

Hopefully it's all correct still.

Old dependency graph needs work, but i'm tempting to call it unsupported and move on
to 2.8 branch.

Depsgraph: Fix some errors printed to the console

They were not real issues, it's just some areas of code tried to create
relations between non-existing nodes without checking whether such
relations are really needed.

Now it should be easier to see real bugs printed.

Hopefully should be no regressions here.

Solve threading conflict when calculating smooth normals

It was possible to have synchronization issues whe naccumulating smooth
normal to a vertex, causing shading artifacts during playback.

Bug found by Dalai, thanks!

RNA: Expose autosmooth face splitting

This way render engine can request mesh to be auto-split and not
worry about implementing this functionality on it's own.

Please note that this split is to be performed prior to tessellation.

Fix compile error (-Werror=float-conversion).

Cycles: Expose diffuse and glossy depth to Light Path node

Was a bit confusing to have transparent and translucent depth
exposed but no diffuse or glossy.

Reviewers: brecht

Subscribers: eyecandy

Differential Revision: https://developer.blender.org/D2399

Cycles: Remove using namespace hell

Please NEVER EVER use such a statement, it's only causing HUGE
issues. What is even worse: it's not always possible to immediately
see that the hell is coming from such a statement.

There is still some statements in the existing code, will leave
those for a later cleanup.

Cycles: Don't use fast math for the host code

This is important for the reliable behavior or isnan/isfinite/min/max
functions to work with nan and non-finite values. Some of the issues
with fast math are possible to work around, but didn't find a way to
have reliable min/max implementation yet.

Cycles: Fix amount of rendered samples not being shown while rendering the last tile on CPU

Cycles: Add fast-math safe isnan and isfinite

Currently unused, but might become really handy in the future.

Cycles: Cleanup, spelling

Cycles: Simplify some code in Curve BVH reference fill

makes code slightly shorter and uses idea of const qualifiers.

Cycles: Cleanup, style

Cycles: Fix wrong transparent shadows for motion blur hair

This was a missing bit from b53ce9a.

Cycles: Avoid shadowing in BVH code

Run into some nasty bugs while trying various things here.

Wouldn't mind enabling -Wshadow for Cycles actually..

Cycles: Cleanup, avoid shadowing