New hair child options:

* Renamed children to "simple" and "interpolated" as this is
  easier to explain and more descriptive than "from particles"
  and "from faces".
* Also shuffled the child ui around a bit to make it clearer.
* Child seed parameter allows to change the seed for children
  independent of the main seed value.
* Long hair mode for interpolated children:
  - Making even haircuts was impossible before as the child
    strand lengths were even, but their root coordinates were
    not similar in relation to the parent strands.
  - The "long hair" option uses the tips of the parent strands
    to calculate the child strand tips.
* Hair parting options:
  - Hair parting can now be calculated dynamically on the fly
    when in 2.49 there was a cumbersome way of using emitter mesh
    seams to define parting lines.
  - For long hair parting can be created by a tip distance/root
    distance threshold. For example setting the minimum threshold
    to 2.0 creates partings between children belonging to parents
    with tip distance of three times the root distance
    ((1+2)*root distance).
  - For short hair the parting thresholds are used as angles
    between the root directions.
* New kink parameters:
  - Kink flatness calculates kink into a shape that would have
    been achieved with an actual curling iron.
  - Kink amplitude clump determines how much the main clump value
    effects the kink amplitude.
  - The beginning of kink is now smoothed to make the hair look
    more natural close to the roots.
* Some bugs fixed along the way too:
  - Child parent's were not determined correctly in some cases.
  - Children didn't always look correct in particle mode.
  - Changing child parameters caused actual particles to be
    recalculated.
* Also cleaned up some deprecated code.

All in all there should be no real changes to how old files look
(except perhaps a bit better!), but the new options should make
hair/fur creation a bit more enjoyable. I'll try to make a video
demonstrating the new stuff shortly.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 3d16242c428..7aca496d9ab 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -11181,6 +11181,7 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 				part->boids->pitch = 1.0f;
 
 			part->flag &= ~PART_HAIR_REGROW; /* this was a deprecated flag before */
+			part->kink_amp_clump = 1.f; /* keep old files looking similar */
 		}
 
 		for (sc= main->screen.first; sc; sc= sc->id.next) {