A Blender add-on for importing a sequence of meshes as frames
Stop motion OBJ allows you to import a sequence of OBJ (or STL or PLY) files and render them as individual frames. Have a RealFlow animation but want to render it in Blender? This addon is for you! Currently tested for Blender 2.79.1.
If you find this add-on helpful, please consider donating to support development:
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- File numbers must be zero-padded
- Like this: file001, file002, file003
- NOT like this:
file1, file2, file3
- You MUST restart Blender after enabling the add-on
- Supported formats: OBJ, STL, PLY
- Allows changing topology
- (the meshes don't need to have the same number of vertices and faces)
- Supports shapes with UVs and image textures
- Variable playback speed
- Multiple playback modes
- Object can have different materials on each frame
- For instance, you can have a different MTL file for each OBJ file
- Bake sequence
- This allows the sequence to be viewed on other computers without installing the addon (in a renderfarm, for example)
- Only absolute filepaths are supported (for now)
- File numbers must be zero-padded
- No motion blur
Doesn't work with physics
- (It actually works with rigid body physics. In Rigid Body Collisions set Shape to 'Mesh' and Source to 'Base')
- Only single-object files are supported
Sequences can't be duplicated (for now)
- Sequences can now be duplicated, but they share a material. For a duplicate sequence with a different material, you have to re-import the sequence.
Installing Stop motion OBJ
- Download mesh_sequence_controller.py and move it to Blender's addons folder (something like C:\Program Files\Blender Foundation\Blender\2.79\scripts\addons)
- Open Blender and open the Add-ons preferences (File > User Preferences... > Add-ons)
- In the search bar, type 'OBJ' and look for the Stop motion OBJ addon in the list
- Check the box to install it, and click 'Save User Settings'
- RESTART BLENDER BEFORE USING THE ADDON
Using Stop motion OBJ
- (make sure you've installed the addon and restarted Blender before using)
- In the 3D view, click Add > Mesh > Mesh Sequence
- The object will initially be empty. We need to load a mesh sequence into it.
- Make sure the object is selected.
- In the properties panel, click on the Object Properties tab (the little orange cube icon). In the settings panel, scroll down to find the Mesh Sequence subpanel and open it.
- Enter the Root Folder by clicking on the folder button and navigating to the folder where the mesh files are stored. Make sure to UNCHECK ‘Relative Path’
- In the File Name box, enter a common prefix of the files.
- ex: If you have frame001, frame002, frame003, you could enter ‘frame’, 'fram', or even 'f'
- If your sequence has a different material for each frame, check the "Material per Frame" checkbox. Otherwise, leave it unchecked.
- Click ‘Load Mesh Sequence’ to load.
- Depending on the number of frames, this could take a while.
- Step through a few frames to see the animation.
- You can adjust which frame the animation starts on as well as its playback speed.
- You can also decide what happens before and after the mesh sequence:
- 'Blank' will simply make the object disappear after the end of the sequence
- 'Extend' will freeze the first and last frames before and after the mesh sequence, respectively
- 'Repeat' will repeat the animation
- 'Bounce' will play the animation in reverse once the sequence has finished
- Once your sequence is loaded, you can change the shading (smooth or flat) of the entire sequence:
- The shading buttons are found in the Mesh Sequence Settings for the object
- Note: The normal shading buttons (in the 3D View "Tools" panel) will only affect the current frame, not the entire sequence