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e8da6131fd
Move copyright text to SPDX-FileCopyrightText or set to the Blender Foundation so "make check_licenses" now runs without warnings.
71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
# SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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""" This script is an exporter to the nuke's .chan files.
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It takes the currently active object and writes it's transformation data
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into a text file with .chan extension."""
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from mathutils import Matrix, Euler
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from math import radians, degrees
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def save_chan(context, filepath, y_up, rot_ord):
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# get the active scene and object
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scene = context.scene
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obj = context.active_object
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camera = obj.data if obj.type == 'CAMERA' else None
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# get the range of an animation
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f_start = scene.frame_start
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f_end = scene.frame_end
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# prepare the correcting matrix
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rot_mat = Matrix.Rotation(radians(-90.0), 4, 'X').to_4x4()
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previous_rotation = Euler()
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filehandle = open(filepath, 'w')
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fw = filehandle.write
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# iterate the frames
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for frame in range(f_start, f_end + 1, 1):
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# set the current frame
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scene.frame_set(frame)
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# get the objects world matrix
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mat = obj.matrix_world.copy()
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# if the setting is proper use the rotation matrix
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# to flip the Z and Y axis
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if y_up:
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mat = rot_mat @ mat
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# create the first component of a new line, the frame number
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fw("%i\t" % frame)
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# create transform component
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t = mat.to_translation()
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fw("%f\t%f\t%f\t" % t[:])
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# create rotation component
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r = mat.to_euler(rot_ord, previous_rotation)
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fw("%f\t%f\t%f\t" % (degrees(r[0]), degrees(r[1]), degrees(r[2])))
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# store previous rotation for compatibility
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previous_rotation = r
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# if the selected object is a camera export vertical fov also
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if camera:
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vfov = degrees(camera.angle_y)
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fw("%f" % vfov)
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fw("\n")
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# after the whole loop close the file
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filehandle.close()
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return {'FINISHED'}
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