*.skl | *.skls
About
These files store skeleton animations. The format for storing animations in *.skl/*.skls is similar to the format of animations embedded in *.object files. Animations are stored in uncompressed form. Bone motion data are stored lossless when exported from a 3D editor. These formats are designed for X-Ray SDK. They are used as source files that are compiled into compressed formats for the game.
Technical information
- Animations are stored as 3 animation curves for position and 3 curves for rotation in Euler angles with ZXY axis order
- A *.skls file can store one or more animations
- A *.skl file can store only one animation
- Each animation has game parameters.
- Skeletal animations do not support Scale keys
Interpolation types
Programs
Blender X-Ray Addon
Blender X-Ray is an addon for the Blender that is designed to import/export 3D models and animations from S.T.A.L.K.E.R. (X-Ray Engine).
IX-Ray SDK
SDK or Software Development Kit helped the developers of the original trilogy and the modders to develop the game itself.