Modificateur Mesh Cache¶
The Mesh Cache modifier applies animated mesh data from an external file to a mesh, allowing it to deform over time. It is commonly used for importing animations from other applications, enabling smooth playback of cached deformations.
This modifier functions similarly to shape keys, but is specifically designed for playback of externally stored animations rather than keyframe-based deformations.
Important
Both .mdd
and .pc2
file formats rely on a consistent vertex order throughout the animation.
Adding, removing, or reordering vertices after this modifier may cause unintended results.
Options¶
- Format
Specifies the input file format. The modifier currently supports
.mdd
and.pc2
.- File Path
Path to the external cache file containing the animation data.
- Influence
Controls the strength of the deformation. Lower values blend the cached animation with the original mesh shape.
- Deform Mode
Determines how the cache data influences the mesh:
- Overwrite:
Replaces vertex positions with those from the cache file.
- Integrate:
Blends the cache deformation with existing deformations, such as shape keys or modifiers.
Note
This mode is best suited for minor, localized adjustments. Large transformations, such as reposing limbs, may not work as expected.
- Interpolation
Controls how frames between cache data are handled:
- None:
Uses only the raw frame data from the cache without interpolation.
- Linear:
Blends between frames for smoother transitions, useful when cache frames do not align perfectly with the scene frames.
- Vertex Group
Si activé, restreint l’effet uniquement à un groupe de sommets.
- Invert
<->
Inverse l’influence du groupe de sommets sélectionné, ce qui signifie que le groupe représente maintenant des sommets qui ne seront pas déformés par le modificateur.
Le réglage inverse les valeurs de poids du groupe.
- Invert
Time Remapping¶
- Time Mode
Defines how animation time is interpreted:
- Frame:
Ignores timing data from the cache and plays back frames directly. This mode provides direct control over playback speed.
- Time:
Uses the cache’s timing data, including offsets and frame durations.
- Factor:
Maps the entire animation to a range between
0
and1
for precise control.
- Play Mode
Specifies how playback timing is determined:
- Scene:
Uses the scene’s current frame for playback.
- Frame Start
Defines the starting frame for playback.
- Frame Scale
Adjusts the playback speed by scaling time.
- Custom:
Allows manual control of animation timing.
- Evaluation Value
Determines animation playback position, which can be animated for precise control.
Axis Mapping¶
- Forward/Up Axis
Specifies the forward and up axes of the imported animation, ensuring proper orientation.
- Flip Axis
Flips the animation along a chosen axis if the imported data requires correction.