diff options
Diffstat (limited to 'io_anim_nuke_chan/import_nuke_chan.py')
| -rw-r--r-- | io_anim_nuke_chan/import_nuke_chan.py | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/io_anim_nuke_chan/import_nuke_chan.py b/io_anim_nuke_chan/import_nuke_chan.py new file mode 100644 index 00000000..59eeba05 --- /dev/null +++ b/io_anim_nuke_chan/import_nuke_chan.py @@ -0,0 +1,116 @@ +# ##### BEGIN GPL LICENSE BLOCK ##### +# +# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# ##### END GPL LICENSE BLOCK ##### + +""" This script is an importer for the nuke's .chan files""" + +from mathutils import Vector, Matrix, Euler +from math import radians, tan + + +def read_chan(context, filepath, z_up, rot_ord): + + # get the active object + scene = context.scene + obj = context.active_object + + # get the resolution (needed to calculate the camera lens) + res_x = scene.render.resolution_x + res_y = scene.render.resolution_y + res_ratio = res_y / res_x + + # prepare the correcting matrix + rot_mat = Matrix.Rotation(radians(90.0), 4, 'X').to_4x4() + + # read the file + filehandle = open(filepath, 'r') + + # iterate throug the files lines + for line in filehandle: + # reset the target objects matrix + # (the one from whitch one we'll extract the final transforms) + m_trans_mat = Matrix() + + # strip the line + data = line.split() + + # test if the line is not commented out + if data and not data[0].startswith("#"): + + # set the frame number basing on the chan file + scene.frame_set(int(data[0])) + + # read the translation values from the first three columns of line + v_transl = Vector((float(data[1]), + float(data[2]), + float(data[3]))) + translation_mat = Matrix.Translation(v_transl) + translation_mat.to_4x4() + + # read the rotations, and set the rotation order basing on the order + # set during the export (it's not being saved in the chan file + # you have to keep it noted somewhere + # the actual objects rotation order doesn't matter since the + # rotations are being extracted from the matrix afterwards + e_rot = Euler((radians(float(data[4])), + radians(float(data[5])), + radians(float(data[6])))) + e_rot.order = rot_ord + mrot_mat = e_rot.to_matrix() + mrot_mat.resize_4x4() + + # merge the rotation and translation + m_trans_mat = translation_mat * mrot_mat + + # correct the world space + # (nuke's and blenders scene spaces are different) + if z_up: + m_trans_mat = rot_mat * m_trans_mat + + # break the matrix into a set of the coordinates + trns = m_trans_mat.decompose() + + # set the location and the location's keyframe + obj.location = trns[0] + obj.keyframe_insert("location") + + # convert the rotation to euler angles (or not) + # basing on the objects rotation mode + if obj.rotation_mode == 'QUATERNION': + obj.rotation_quaternion = trns[1] + obj.keyframe_insert("rotation_quaternion") + elif obj.rotation_mode == 'AXIS_ANGLE': + tmp_rot = trns[1].to_axis_angle() + obj.rotation_axis_angle = (tmp_rot[1], ) + tmp_rot[0][:] + obj.keyframe_insert("rotation_axis_angle") + del tmp_rot + else: + obj.rotation_euler = trns[1].to_euler(obj.rotation_mode) + obj.keyframe_insert("rotation_euler") + + + # check if the object is camera and fov data is present + if obj.type == 'CAMERA' and len(data) > 7: + v_fov = float(data[7]) + sensor_v = 32.0 + sensor_h = sensor_v * res_ratio + lenslen = ((sensor_h / 2.0) / tan(radians(v_fov / 2.0))) + obj.data.lens = lenslen + obj.data.keyframe_insert("lens") + filehandle.close() + + return {'FINISHED'} |