# SDL_HAPTIC_INERTIA Inertia effect supported - uses axes acceleration. ## Header File Defined in [<SDL3/SDL_haptic.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_haptic.h) ## Syntax ```c #define SDL_HAPTIC_INERTIA (1u<<9) ``` ## Remarks Condition haptic effect that simulates inertia. Effect is based on the axes acceleration. ## Version This macro is available since SDL 3.2.0. ## See Also - [SDL_HapticCondition](SDL_HapticCondition) ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryHaptic](CategoryHaptic)