Blender Git Loki

Turn grayscale preview on if any channel toggles are active for motion tracking.

Add support for detecting tracking failure in the ESM tracker component of
libmv. Since both KLT and Hybrid rely on ESM underneath, KLT and Hybrid now
have a minimum correlation setting to match. With this fix, track failures
should get detected quicker, with the issue that sometimes the tracker will
give up too easily. That is fixable by reducing the required correlation (in
the track properties).

Camera tracking: merge hybrid tracker from tomato branch

Comment from Keir's commit:

Add a new hybrid region tracker for motion tracking to libmv, and
add it as an option (under "Hybrid") in the tracking settings. The
region tracker is a combination of brute force tracking for coarse
alignment, then refinement with the ESM/KLT algorithm already in
libmv that gives excellent subpixel precision (typically 1/50'th
of a pixel)

This also adds a new "brute force" region tracker which does a
brute force search through every pixel position in the destination
for the pattern in the first frame. It leverages SSE if available,
similar to the SAD tracker, to do this quickly. Currently it does
some unnecessary conversions to/from floating point that will get
fixed later.

The hybrid tracker glues the two trackers (brute & ESM) together
to get an overall better tracker. The algorithm is simple:

1. Track from frame 1 to frame 2 with the brute force tracker.
This tries every possible pixel position for the pattern from
frame 1 in frame 2. The position with the smallest
sum-of-absolute-differences is chosen. By definition, this
position is only accurate up to 1 pixel or so.
2. Using the result from 1, initialize a track with ESM. This does
a least-squares fit with subpixel precision.
3. If the ESM shift was more than 2 pixels, report failure.
4. If the ESM track shifted less than 2 pixels, then the track is
good and we're done. The rationale here is that if the
refinement stage shifts more than 1 pixel, then the brute force
result likely found some random position that's not a good fit.

svn command used: svn merge -r 42375:42376 -r 42377:42379 ^/branches/soc-2011-tomato

Add a toggle button to display motion tracker previews in grayscale.

Merging r42350 through r42393 from trunk into soc-2011-tomato

Revert "Fix a segfault in the tracker caused by attempting a one-frame track after the active tracker has become disabled."

BKE_tracking_next shouldn't be called if there's nothing to track.
Fixed in trunk, would be fixed here after upcoming merge.

Do not clamp search size when adding new track with non-klt tracker set

Fix crash when trying to track disabled track.

This is possible fixes #29498: Seg fault on trying to track byond clip length

CUDA
* Added CUDA Binaries to Windows scons config files, disabled by default.
Also the path to nvcc is commented out, best to set this in the user config, as it varies on each system probably.

include mathutils.noise in sphinx docs

remove use of deprecated struct members
- editmesh smooth & subdivide were using old mirror axis flag still.
- removed colbits from outliner and object code.
- commented some other parts of the code which access deprecated members and aren't called anywhere.

add define for deprecated DNA struct members: DNA_DEPRECATED,
this means use of deprecated struct members gives a warning.

- makesdna.c preprocessor skips this.
- DNA_DEPRECATED_ALLOW is used so readfile.c can do versioning without warnings.
- this exposes some use of deprecated struct members, will deal with this after.

Make the tracker preview in the motion tracking panel show exactly what the
tracking algorithm will see when any of the R/G/B channels are disabled, rather
than the RGB view that was there previously.

Fix a segfault in the tracker caused by attempting a one-frame track after the active tracker has become disabled.

Switch the tracker preview area to use bilinear filtering instead of nearest
neighbour. This makes it easier to align tracks.

add a new object member to store the dsize, since with my recent commit broke forward compatibility. now the new values are copied into 'dscale' and existing ones remain.

this is annoying since now we have dsize and dscale, will look into a way to deprecate struct members next.

bmesh: fixed crash in bevel

Don't show the "Correlation" tracking preset when the hybrid tracker is selected.

Add a fix for compiling the brute force region tracker from libmv on Mac OS X.

Invert Color Cycles Node
as with the HSV node the OSL code is relying on the (yet to be implemented) autorename.

Also the svm code could use mix (svm_lerp) instead:
32 . float3 color_inv = make_float3(1.0f, 1.0f, 1.0f) - color;
35 . . stack_store_float3(stack, out_color, svm_lerp(color_inv, color, factor));

I have a feeling that each node 'program' should have the least program as possible. I'll see with Brecht later.
But overall I don't know if that's any fast. And apart from that I think we will need this kind of function to move to a library if multiple functions linked in are not a problem.