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[Merged by Bors] - bevy_render: Add attributes and attributes_mut methods to Mesh. #3927

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[Merged by Bors] - bevy_render: Add attributes and attributes_mut methods to Mesh. #3927

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3e3297a
bevy_render: Add `attributes` and `attributes_mut` methods to `Mesh`.
BGR360 Feb 13, 2022
65d1e94
Eschew lifetimes :-)
BGR360 Feb 13, 2022
7e4f535
update to use new apis
cart Jun 15, 2022
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16 changes: 16 additions & 0 deletions crates/bevy_render/src/mesh/mesh/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,22 @@ impl Mesh {
.map(|data| &mut data.values)
}

/// Returns an iterator that yields references to the data of each vertex attribute.
pub fn attributes(
&self,
) -> impl Iterator<Item = (MeshVertexAttributeId, &VertexAttributeValues)> {
self.attributes.iter().map(|(id, data)| (*id, &data.values))
}

/// Returns an iterator that yields mutable references to the data of each vertex attribute.
pub fn attributes_mut(
&mut self,
) -> impl Iterator<Item = (MeshVertexAttributeId, &mut VertexAttributeValues)> {
self.attributes
.iter_mut()
.map(|(id, data)| (*id, &mut data.values))
}

/// Sets the vertex indices of the mesh. They describe how triangles are constructed out of the
/// vertex attributes and are therefore only useful for the [`PrimitiveTopology`] variants
/// that use triangles.
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