Enum nannou::vk::framebuffer::LoadOp

#[repr(u32)]
pub enum LoadOp {
    Load,
    Clear,
    DontCare,
}

Describes what the implementation should do with an attachment at the start of the subpass.

Variants

Load

The content of the attachment will be loaded from memory. This is what you want if you want to draw over something existing.

While this is the most intuitive option, it is also the slowest because it uses a lot of memory bandwidth.

Clear

The content of the attachment will be filled by the implementation with a uniform value that you must provide when you start drawing.

This is what you usually use at the start of a frame, in order to reset the content of the color, depth and/or stencil buffers.

See the draw_inline and draw_secondary methods of PrimaryComputeBufferBuilder.

DontCare

The attachment will have undefined content.

This is what you should use for attachments that you intend to entirely cover with draw commands. If you are going to fill the attachment with a uniform value, it is better to use Clear instead.

Trait Implementations

impl PartialEq<LoadOp> for LoadOp

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]

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

This method tests for !=.

impl Copy for LoadOp

impl Eq for LoadOp

impl Hash for LoadOp

fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Debug for LoadOp

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

Formats the value using the given formatter.

impl Clone for LoadOp

fn clone(&self) -> LoadOp

Returns a copy of the value.

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

Performs copy-assignment from source.