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1 import bpy
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2 from pathlib import Path
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3
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4 bl_info = {
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5 "name": "Write animation",
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6 "blender": (2, 80, 0),
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7 "location": "Render > Write animation",
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8 }
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9
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10
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11 class WriteAnimation(bpy.types.Operator):
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12 """Write a new webm next to the blend file"""
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13 bl_idname = "render.write_animation" # Unique identifier for buttons and menu items to reference.
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14 bl_label = "Write animation" # Display name in the interface.
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15 bl_options = {'REGISTER'}
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16
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17 def execute(self, context):
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18 if not bpy.data.filepath.replace('.', ''):
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19 raise ValueError('Please save the file somewhere first.')
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20 output_base = Path(bpy.data.filepath.replace('.blend', ''))
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21 for num in range(1, 1000):
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22 output_path = Path(f'{output_base}_{num}.webm')
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23 if output_path.exists():
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24 continue
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25 break
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26 else:
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27 raise NotImplementedError()
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28
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29 render = context.scene.render
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30
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31 render.filepath = str(output_path)
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32 render.image_settings.file_format = 'FFMPEG'
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33 render.ffmpeg.format = 'WEBM'
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34 render.ffmpeg.codec = 'WEBM'
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35 render.ffmpeg.constant_rate_factor = 'HIGH'
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36 render.image_settings.color_mode = 'RGBA'
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37 bpy.ops.render.render('INVOKE_DEFAULT', animation=True)
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38
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39 return {'FINISHED'}
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40
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41
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42 def register():
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43 bpy.utils.register_class(WriteAnimation)
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44
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45
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46 def unregister():
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47 bpy.utils.unregister_class(WriteAnimation)
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48
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49
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50 if __name__ == "__main__":
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51 register()
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