bevy/crates/bevy_pbr
Sludge 908c40dd88 Implement Clone for all pipeline types (#6653)
# Objective

Pipelines can be customized by wrapping an existing pipeline in a newtype and adding custom logic to its implementation of `SpecializedMeshPipeline::specialize`. To make that easier, the wrapped pipeline type needs to implement `Clone`.

For example, the current non-cloneable pipelines require wrapper pipelines to pull apart the wrapped pipeline like this:

```rust
impl FromWorld for Wireframe2dPipeline {
    fn from_world(world: &mut World) -> Self {
        let p = &world.resource::<Material2dPipeline<ColorMaterial>>();
        Self {
            mesh2d_pipeline: p.mesh2d_pipeline.clone(),
            material2d_layout: p.material2d_layout.clone(),
            vertex_shader: p.vertex_shader.clone(),
            fragment_shader: p.fragment_shader.clone(),
        }
    }
}
```

## Solution

Derive or implement `Clone` on all built-in pipeline types. This is easy to do since they mostly just contain cheaply clonable reference-counted types.

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## Changelog

Implement `Clone` for all pipeline types.
2023-01-14 18:33:38 +00:00
..
src Implement Clone for all pipeline types (#6653) 2023-01-14 18:33:38 +00:00
Cargo.toml Release 0.9.0 (#6568) 2022-11-12 20:01:29 +00:00