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02700ab162
This will make it easier for contributors to understand the file layout,
at the cost of said layout containing several more nested directories.
I will personally appreciate not having to remember to look for
`root.rs` instead of `main.rs`.
I also renamed the test targets so that they do not *all* share the
superfluous suffix “-test” (test targets live in a different namespace
than other target types and packages, so the name can presume that it
is always known that they are tests).
The Naga snapshot data sets `naga/tests/{in,out}` have been left in
their original positions.
84 lines
2.2 KiB
Rust
84 lines
2.2 KiB
Rust
use bytemuck::{Pod, Zeroable};
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use glam::Affine3A;
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#[repr(C)]
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#[derive(Clone, Copy, Pod, Zeroable)]
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pub struct Vertex {
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_pos: [f32; 4],
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_tex_coord: [f32; 2],
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}
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fn vertex(pos: [i8; 3], tc: [i8; 2]) -> Vertex {
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Vertex {
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_pos: [pos[0] as f32, pos[1] as f32, pos[2] as f32, 1.0],
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_tex_coord: [tc[0] as f32, tc[1] as f32],
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}
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}
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pub fn create_vertices() -> (Vec<Vertex>, Vec<u16>) {
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let vertex_data = [
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// top (0, 0, 1)
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vertex([-1, -1, 1], [0, 0]),
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vertex([1, -1, 1], [1, 0]),
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vertex([1, 1, 1], [1, 1]),
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vertex([-1, 1, 1], [0, 1]),
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// bottom (0, 0, -1)
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vertex([-1, 1, -1], [1, 0]),
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vertex([1, 1, -1], [0, 0]),
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vertex([1, -1, -1], [0, 1]),
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vertex([-1, -1, -1], [1, 1]),
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// right (1, 0, 0)
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vertex([1, -1, -1], [0, 0]),
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vertex([1, 1, -1], [1, 0]),
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vertex([1, 1, 1], [1, 1]),
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vertex([1, -1, 1], [0, 1]),
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// left (-1, 0, 0)
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vertex([-1, -1, 1], [1, 0]),
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vertex([-1, 1, 1], [0, 0]),
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vertex([-1, 1, -1], [0, 1]),
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vertex([-1, -1, -1], [1, 1]),
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// front (0, 1, 0)
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vertex([1, 1, -1], [1, 0]),
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vertex([-1, 1, -1], [0, 0]),
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vertex([-1, 1, 1], [0, 1]),
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vertex([1, 1, 1], [1, 1]),
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// back (0, -1, 0)
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vertex([1, -1, 1], [0, 0]),
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vertex([-1, -1, 1], [1, 0]),
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vertex([-1, -1, -1], [1, 1]),
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vertex([1, -1, -1], [0, 1]),
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];
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let index_data: &[u16] = &[
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0, 1, 2, 2, 3, 0, // top
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4, 5, 6, 6, 7, 4, // bottom
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8, 9, 10, 10, 11, 8, // right
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12, 13, 14, 14, 15, 12, // left
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16, 17, 18, 18, 19, 16, // front
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20, 21, 22, 22, 23, 20, // back
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];
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(vertex_data.to_vec(), index_data.to_vec())
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}
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pub fn affine_to_rows(mat: &Affine3A) -> [f32; 12] {
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let row_0 = mat.matrix3.row(0);
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let row_1 = mat.matrix3.row(1);
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let row_2 = mat.matrix3.row(2);
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let translation = mat.translation;
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[
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row_0.x,
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row_0.y,
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row_0.z,
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translation.x,
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row_1.x,
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row_1.y,
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row_1.z,
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translation.y,
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row_2.x,
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row_2.y,
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row_2.z,
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translation.z,
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]
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}
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