Trait librashader_runtime::parameters::FilterChainParameters

pub trait FilterChainParameters {
    fn get_enabled_pass_count(&self) -> usize;
    fn set_enabled_pass_count(&mut self, count: usize);
    fn enumerate_parameters(&self) -> Iter<'_, String, f32>;
    fn get_parameter(&self, parameter: &str) -> Option<f32>;
    fn set_parameter(&mut self, parameter: &str, new_value: f32) -> Option<f32>;
}

Trait for filter chains that allow runtime reflection of shader parameters.

Required Methods

fn get_enabled_pass_count(&self) -> usize

Gets the number of shader passes enabled at runtime.

fn set_enabled_pass_count(&mut self, count: usize)

Sets the number of shader passes enabled at runtime.

fn enumerate_parameters(&self) -> Iter<'_, String, f32>

Enumerates the active parameters as well as their values in the current filter chain.

fn get_parameter(&self, parameter: &str) -> Option<f32>

Get the value of the given parameter if present.

fn set_parameter(&mut self, parameter: &str, new_value: f32) -> Option<f32>

Set the value of the given parameter if present.

Returns None if the parameter did not exist, or the old value if successful.

Implementors