hi i want to learn how to do some simple 2D traking in a video , i know synth eyes is a 3D tracker but i guess it can also do normal 2D tracking ala after effects right?
could anybody point me where to find the tutorials or where in the manual is this info to do 2D tracking ?
or do you know how to do this ?
Thanx. 
and then how do i import it into blender to use this info on top of a video ?
I used syntheyes once or twice, I can’t remember on what kind of footage. But I believe that it simply makes a a 3D camera for you. It has a robust exporter, so after your track simply export the camera in a format that Blender can import. I’m not sure what that is however. I have heard tale of an FBX importer for Blender. That would be my first export attempt.
hi.
To use 2d trackers from syntheyes in blender you have to create ‘supervised trackers’ (here is a tutorial: http://www.ssontech.com/content/closup.htm) inside syntheyes for the features you want to track. Then export from syntheyes with the ‘All Tracker Paths’ option.
I made this simple script to import the trackers data inside blender:
#!BPY
"""
Name: 'Syntheyes Trackers...'
Blender: 245
Group: 'Import'
Tooltip: 'Import Tracker paths from Syntheyes'
"""
__author__= ['Victor Barberan']
__url__ = (' ')
__version__= '0.1'
__bpydoc__= '''
Import Trackers from Syntheyes export.
'''
# ***** BEGIN GPL LICENSE BLOCK *****
#
# Script copyright (C) macouno 2006
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****
# --------------------------------------------------------------------------
import Blender, bpy, math
from Blender import *
#cross size
cs = .08
def cross(name):
me = bpy.data.meshes.new(name)
coords = [ [-cs,0,cs],[cs,0,-cs],[cs,0,cs],[-cs,0,-cs] ]
edges = [ [0,1],[2,3] ]
me.verts.extend(coords)
me.edges.extend(edges)
scn = bpy.data.scenes.active
ob = scn.objects.new(me, name)
return ob
def load_trackers(filepath):
maxframe = 1
minframe = 99999
#get current scene
scn = bpy.data.scenes.active
cont = scn.getRenderingContext()
#adjust camera and resolution
resx = cont.imageSizeX()
resy = cont.imageSizeY()
obcam = scn.objects.camera
cam = obcam.getData()
cam.type = 'ortho'
cam.scale = 1
obcam.setLocation(cam.scale/2,-5,((resy * cam.scale) / resx)/2)
obcam.RotX = math.pi/2
obcam.RotY = 0
obcam.RotZ = 0
#open file to import
file = open(filepath).read().splitlines()
for line in file:
if 'Tracker' in line:
#get tracknum
tracknum = int(line.strip('Tracker'))
#create empty
empty = cross('Tracker_'+str(tracknum))
empty.setLocation(0,0,0)
empty.size = (0.1,0.1,0.1)
#create ipo and assign it
ipo = Ipo.New('Object', 'Tracker'+str(tracknum)+'Ipo')
empty.setIpo(ipo)
#adding ipocurves
lx = ipo.addCurve('LocX')
ly = ipo.addCurve('LocZ')
else:
#get frame an coordinates
frame = int(line.split(' ')[0])+1
locx = (float(line.split(' ')[1]) / resx) * cam.scale
locy = (float(line.split(' ')[2]) / resy) * ((resy * cam.scale) / resx)
#print line.split(' ')[1]
#print float(line.split(' ')[1]) /resx
#print (float(line.split(' ')[1]) /resx) * cam.scale
#put new coordinate in ipo curves
lx.append((frame, locx))
lx.update()
ly.append((frame, locy))
ly.update()
#get max and min frames
if maxframe < frame: maxframe = frame
if minframe > frame: minframe = frame
#set start and end frame
if minframe == 99999:
cont.startFrame(1)
else:
cont.startFrame(minframe)
cont.endFrame(maxframe)
Blender.Set('curframe', minframe)
Redraw()
if __name__=='__main__':
Window.FileSelector(load_trackers, 'Import Trackers', '*.txt')
Put this script in your blender scripts dir, and you will find it under file=> import=> Syntheyes Trackers…
a few limitations of the script:
-you have to set the render resolution to the same resolution of your tracked shot.
-it converts your camera to orthographic and relocates it to match the resolution of your shot.
i recommend you to set the tracked shot as background image in blender to see if your tracking went well.
maybe this helps a little.
saludos
vico
Hi , thanx , and sorry for the delay, a couple of questions,
Where is the all trackers path option ,
and : i dont need to add a coordinate system right ?
thanx