Blender Git Loki

Cleaned the apply deform code in Blender. Now also using the modifier code.
Right now, it works for Meshes (all deformers including Curve) and for
Curve/Surfaces (only hooks).

More follows.

Last of the beautifying for subsurf+optimal editing; selectmode 'face' now
draws on click the optimal outline correctly

Crash fix;
- wireframe view
- editmode cube
- subsurf + optimal on
- set new selectmode 'face'

thanks sirdude & sgefant!

More maintenance due to new selection code;

- fgons draw correctly again in face selectmode
- on select, fgons dont draw wrong selection dot

Two small fixes thanks to test:
- backbuf draw vertices did still use pointsize 1.0, making them hard to
select
- wire frontbuf draw on select used un-initialized color

Changed valence rule for edgeloop, so it treats fgons OK.

Eek! Commit for 'making transform aware for mesh select mode' caused all
other editmodes to crash in transform()!

Recode of 'zbuffer selection'. I first was too afraid using the backbuffer
selection method, since there's too much trash in drawobject.c and displists...
But, I couldn't stand the zbuf selection to miss edges too often. Right now
both methods are still in the code, and can be reviewed.

Please note for test:
- borderselect and circle-select still use old method
- new selection works directly on faces & edges
- subsurf optimal draw and selection works fine now

To detect the closest vertex or edge, i use the old 'spiral selection' code,
which is extremely accurate. If your mouse is close to an edge, it should
find it.

Most evidently I need to test speed... also, the disadvantage of backbuf
selection is the limited depth, which can be 16 bits (65 k faces) on systems.

Picky, picky: Removed the question mark from the end of
'Quit Blender?' as per language guidelines

fully qualify variable names to fix bug under Solaris.
reported by Casey Corn.

- fixed error in copying selection from faceselectmode to editmode
- removed ancient convention that switches to wire then

Faceloop select recoded, also nonmodal (no loop). It works by clicking with
ALT on an edge, in face-select mode. Holding shift again extends selection.

Current UI access can need rethink though. But I also think the loop tools
deserve to be accessible without menu, for speed/workflow. So what's good
shortcuts!

BTW: both tools don't do triangle meshes (yet)

Added edgeloop selection as mode-less loop-less option.
Hotkey: ALT+select (ALT+CTRL for single button mouse)

Hold shift to extend selection, or to deselect

It correctly does edges on boundaries and loose edges too.

Transform() now is edge/face selection aware too.
Theeth; i've done the changes as local as possible, and lotsa comments :P

Bug fix: on scene append of curve deformer displist causes crash...
Crash is solved now, but create displist fails.

- improvement for edge/face select
- edges now sample on three locationsm gives more hits
- own version of glPolygonOffset remains cumbersome... but for select
now the selection routine gets more offset than draw.

- first attempt to clean drawobject.c and displists
- generic call for draw object in backbuf for select purposes, cleans up
a lot in the other calls.
- also to verify if we can (in future) use this for vertex/edge/face
select, but the whole drawobject code works against me... this is
for another refactory (incl. displist) and out of the focus for now

- subsurf.c: now creates new faces in order of original. Not used yet, but is
handy to recover the original order for selection/paint purposes.

New drawmethod for creases editing (draw creases option) in editmode.
http://www.blender.org/bf/rt3.jpg

It draws a 2 pixel line, growing from center of edge, to denote sharpness.
This works nicely with the new selection modes.

Please note that subsurf-optimal still draws original edge then... but
this didnt work before neither. :)

Fix for the beloveled bevel. ;)
Still could use cleanup for flags though.

Two bugs:

- when adding creases in editmode, and separating that part, displists
did weird things... separate is hackish anyway
- draw faces (transparant) didnt do triangles correctly

New strict 'hide' rules for editmesh & new selectmodes

- vertex hidden, always means edge is hidden too
- edge hidden, always means face is hidden too
- face hidden, only means face hides

This means, that in face mode you can hide a face, whilst in edge mode
the edges will still display.

Please note, that when you have no edges saved in a Mesh, it also doesnt
store the hide flags for it, causing in/out editmode too reset hidden
edges.