# Endless Shakes When **Duration** is set to **Force** inside the shake settings, the shake will last until it's explicitly stopped by the user. Endless shakes can be controlled (stopped and more) using [Instance Handles](/shakefx/core/instance-handles.md). This can be useful for more advanced cases like applying camera shake while the player is sprinting. Fade-in and fade-out settings still apply to endless shakes. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://fx-engine.gitbook.io/shakefx/core/endless-shakes.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.