Blender Git Loki

Use simple smoothing function

seems more predictable, less likely to spike.

use glDrawRangeElements for camera

glDrawElements has no way to say how much data from the vertex array is
needed, so use the Range variant instead.

glDrawArrays already has this range info.

draw camera in 1 GL call (2 for active cam)

draw camera using vertex array

put all OB_CAMERA verts in single array

also disable camera border hack (used for viewing THROUGH camera) to
focus on whole-camera drawing.

remove unused test pattern

Helped for orientation before objects were drawn, no longer needed.

Minor optimization

re-ordering assignments here gives approx ~8% speedup.

Pre-calculate vert-edge-count

was being calculate each smooth iteration, ~10-15% speedup.

Minor optimizations to smooth_iter,

Use fast-path, for simple case (no weights, no boundaries), approx 6% speedup.

Reuse normalized loop-edge-direction

Was re-calculating the loop-edge-normal twice per loop,
while calculating tangents.

Minor edits to smooth-data iteration

Simple changes to array handling gives approx 15% speedup

Add in timing ifdef

Misc minor edits

- use unsigned int
- use const
- simplify logic & error checks

Initial cleanup

Experimental D1183 branch, original patch by @sazerac

(take2, somehow branched from an old revision)

Experimental D1183 branch, original patch by @sazerac

new draw path for Mesh & Camera objects

Used only when �??new viewport�? pref is checked, so we can switch back &
forth for comparison.

Camera because it�??s simple �?? scoped some vars, removed an extra line
segment, touch back face cull state only when needed.

Mesh because it�??s interesting �?? very little difference, just factored
out edit mesh drawing & touch back face cull state only when needed.

Also added (temporary) call graph tracing, to help me make sense of the
object drawing logic.

More to come for these object types, will run with these and add more
object types later. Not using our new APIs yet but that is the goal.

Merge branch 'master' into asset-experiments

WIP cache system for filebrowser entries.

Core part seems to be working, but this is still heavy WIP, much to do
to resume complete features from existing code. Mainly:

* Previews (those should only be ran on cached items now).
* Use block-caching to load in-display entries.
* Rework things like selection (cannot store selected states in entires anymore).

Also, internal listing is stupid currently (since it still stores everything
as FileDirEntry & co), not really crucial currently, but ultimately it'll
use its own, compact struct to keep full listing!

Also did some minor cleanup/renaming.

Merge branch 'alembic' into gooseberry