WriteMotionFile.py

# Motion export script

rad2deg = 180/3.14159265

import bpy
import math
from math import sqrt
sce = bpy.context.scene

saveFile = open("/Users/h/Documents/BlenderPlayback.csv","w")
#maxDelta = 0.2

sce.frame_set(sce.frame_start)

saveFile.write("FRAME,BIGSLIDER,PAN,TILT,MTURN,FOCUS\n")

for fr in range(sce.frame_start, sce.frame_end+1):
    sce.frame_set(fr)
    sce.update()
    
    
    
    xSlider = bpy.data.scenes[0].objects["SliderDummy"].location[0] - bpy.data.scenes[0].objects["SliderDummy.001"].location[0]
    xPan = bpy.data.scenes[0].objects["PTR_PAN"].matrix_world.to_euler("XYZ")[1]
    xTilt = - bpy.data.scenes[0].objects["PTR_TILT"].matrix_world.to_euler("XYZ")[1] 
    mTurn = bpy.data.scenes[0].objects["MTURN"].matrix_world.to_euler("XYZ")[2]
    mFocus = -(bpy.data.scenes[0].objects["FocusDistanceDummy"].location[2])
    
    # xIris = bpy.data.scenes[0].objects["IrisEmpty"].scale[0] 
    # xSlider = bpy.data.scenes[0].objects["Slider"].location[0]
    # xLegoRot =  bpy.data.scenes[0].objects["LegoRot"].rotation_euler[2]   
     
    saveFile.write(str(fr))
    saveFile.write(",")
    saveFile.write(str(xSlider))
    saveFile.write(",")

    saveFile.write(str(xPan * rad2deg))
    saveFile.write(",")
    saveFile.write(str(xTilt * rad2deg))
    saveFile.write(",")
    saveFile.write(str(mTurn * rad2deg))
    
    saveFile.write(",")
    saveFile.write(str(mFocus))
    
  
    saveFile.write("\n")
 
saveFile.close()

OK, so this is a Python script to export the positions, rotations, or focus distance of a virtual camera rig, as a CSV file with one line per frame. Everything's hardcoded, in order to reduce portability and convenience. But that's how we leave something for version 2.0 to do, eh...

For more information about what this is for, see the motion control server Readme, here -> https://github.com/howiemnet/MotionControl