Enum PrefilterMode 

#[non_exhaustive]
pub enum PrefilterMode {
    None,
    External,
    Bilateral {
        sigma_s: f32,
        sigma_r: f32,
    },
    NlmSpatial {
        strength_scale: f32,
    },
}

How the reference image for each frame is produced.

NLM compares patches to decide how much two pixels look alike. Doing that on a noisy image means comparing noise as well as content, so a cleaner reference image can give better weights.

The pixels being averaged always come from the original input. Only the weights change.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

No reference image, so patches are compared on the noisy input. This costs nothing extra.

External

The caller supplies the reference frame through [super::NlmDenoiser::push_frame_with_reference].

Bilateral

A quick bilateral blur run on the GPU at push time.

Fields

sigma_s: f32

sigma_r: f32

NlmSpatial

A spatial NLM pilot pass.

Each frame is denoised with the windowed spatial kernel at push time and the result is kept as the reference image.

Fields

strength_scale: f32

How much of the main pass strength the pilot pass uses.

Trait Implementations

impl Clone for PrefilterMode

fn clone(&self) -> PrefilterMode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PrefilterMode

impl Debug for PrefilterMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PrefilterMode

fn default() -> PrefilterMode

Returns the “default value” for a type.

impl PartialEq for PrefilterMode

fn eq(&self, other: &PrefilterMode) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PrefilterMode