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-rw-r--r--opentrack/plugin-api.hpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/opentrack/plugin-api.hpp b/opentrack/plugin-api.hpp
index 732dbb3d..a57077ab 100644
--- a/opentrack/plugin-api.hpp
+++ b/opentrack/plugin-api.hpp
@@ -61,6 +61,8 @@ struct IFilter
// perform filtering step.
// you have to take care of dt on your own, try "opentrack-compat/timer.hpp"
virtual void filter(const double *input, double *output) = 0;
+ // optionally reset the filter when centering
+ virtual void center() {}
};
struct IFilterDialog : public BaseDialog