Struct PreviewTarget 

pub struct PreviewTarget { /* private fields */ }

The offscreen a frame is drawn into while a preview is open, plus the view and identity its two consumers need.

Sized to the output’s configured target and never resized in place: the copy’s extent is fixed against widthxheight, so a renderer resize discards this and builds another. super::Renderer::open_preview and resize are the only things that construct one.

Implementations

impl PreviewTarget

pub fn size(&self) -> (u32, u32)

The pixel size this intermediate was built against.

pub fn generation(&self) -> u64

This intermediate’s identity, unique across every one ever built in this process. A consumer caching a bind group against it compares this rather than the texture.