33 lines
908 B
Rust
33 lines
908 B
Rust
//! Draw geometry using meshes of triangles.
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use bytemuck::{Pod, Zeroable};
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/// A set of [`Vertex2D`] and indices representing a list of triangles.
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#[derive(Clone, Debug)]
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pub struct Mesh2D<T> {
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/// The vertices of the mesh
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pub vertices: Vec<T>,
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/// The list of vertex indices that defines the triangles of the mesh.
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///
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/// Therefore, this list should always have a length that is a multiple of 3.
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pub indices: Vec<u32>,
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}
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/// A two-dimensional vertex.
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#[derive(Copy, Clone, Debug, Zeroable, Pod)]
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#[repr(C)]
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pub struct Vertex2D {
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/// The vertex position in 2D space.
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pub position: [f32; 2],
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}
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/// A two-dimensional vertex with a color.
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#[derive(Copy, Clone, Debug, Zeroable, Pod)]
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#[repr(C)]
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pub struct ColoredVertex2D {
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/// The vertex position in 2D space.
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pub position: [f32; 2],
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/// The color of the vertex in __linear__ RGBA.
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pub color: [f32; 4],
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}
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