47 lines
1.6 KiB
Rust
47 lines
1.6 KiB
Rust
#[repr(C)]
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#[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
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pub struct Vertex {
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position: [f32; 3],
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texture_coords: [f32; 2],
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}
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impl Vertex {
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pub fn desc<'a>() -> wgpu::VertexBufferLayout<'a> {
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wgpu::VertexBufferLayout {
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array_stride: std::mem::size_of::<Vertex>() as wgpu::BufferAddress,
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step_mode: wgpu::InputStepMode::Vertex,
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// this oculd be shortened with:
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// attributes: &wgpu::vertex_attr_array![0 => Float32x3, 1 => Float32x3],
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attributes: &[
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wgpu::VertexAttribute {
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offset: 0,
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shader_location: 0,
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format: wgpu::VertexFormat::Float32x3,
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},
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wgpu::VertexAttribute {
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offset: std::mem::size_of::<[f32; 3]>() as wgpu::BufferAddress,
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shader_location: 1,
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format: wgpu::VertexFormat::Float32x2,
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},
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],
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}
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}
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}
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pub const VERTICES: &[Vertex] = &[
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Vertex { position: [-0.0868241, 0.49240386, 0.0], texture_coords: [0.4131759, 0.00759614], }, // A
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Vertex { position: [-0.49513406, 0.06958647, 0.0], texture_coords: [0.0048659444, 0.43041354], }, // B
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Vertex { position: [-0.21918549, -0.44939706, 0.0], texture_coords: [0.28081453, 0.949397], }, // C
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Vertex { position: [0.35966998, -0.3473291, 0.0], texture_coords: [0.85967, 0.84732914], }, // D
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Vertex { position: [0.44147372, 0.2347359, 0.0], texture_coords: [0.9414737, 0.2652641], }, // E
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];
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pub const INDICES: &[u16] = &[
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// pentagon
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0, 1, 4,
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1, 2, 4,
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2, 3, 4,
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// padding
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0,
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];
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