Struct WgpuParamsHandle 

pub struct WgpuParamsHandle<P: Pod> { /* private fields */ }

Live handle for updating shader parameters from any thread while the filter runs inside a pipeline. Created via crate::wgpu_filter::WgpuFrameFilter::params_handle.

Implementations

impl<P: Pod> WgpuParamsHandle<P>

pub fn set(&self, value: P)

Replaces the parameter value; the new bytes are uploaded before the next frame is rendered.

pub fn update(&self, f: impl FnOnce(&mut P))

Reads, modifies and writes back the parameter value as one atomic step — the lock is held across the closure, so concurrent set / update calls from other threads serialize instead of losing writes (update(|p| p.gain += 0.1) never overwrites a value it did not see). Because the lock is held, calling set/update on any handle to the same filter from inside the closure deadlocks.