mirror of
https://github.com/bevyengine/bevy
synced 2024-12-23 11:33:06 +00:00
694c06f3d0
# Objective Currently the `missing_docs` lint is allowed-by-default and enabled at crate level when their documentations is complete (see #3492). This PR proposes to inverse this logic by making `missing_docs` warn-by-default and mark crates with imcomplete docs allowed. ## Solution Makes `missing_docs` warn at workspace level and allowed at crate level when the docs is imcomplete.
261 lines
6.9 KiB
Rust
261 lines
6.9 KiB
Rust
//! This example demonstrates how to generate a mesh.
|
|
|
|
#![allow(clippy::bool_assert_comparison, clippy::useless_conversion)]
|
|
|
|
use glam::{Vec2, Vec3};
|
|
|
|
type Face = [u32; 3];
|
|
|
|
#[derive(Debug)]
|
|
struct Vertex {
|
|
position: Vec3,
|
|
normal: Vec3,
|
|
tex_coord: Vec2,
|
|
}
|
|
|
|
struct Mesh {
|
|
faces: Vec<Face>,
|
|
vertices: Vec<Vertex>,
|
|
}
|
|
|
|
fn vertex(mesh: &Mesh, face: usize, vert: usize) -> &Vertex {
|
|
let vs: &[u32; 3] = &mesh.faces[face];
|
|
&mesh.vertices[vs[vert] as usize]
|
|
}
|
|
|
|
impl bevy_mikktspace::Geometry for Mesh {
|
|
fn num_faces(&self) -> usize {
|
|
self.faces.len()
|
|
}
|
|
|
|
fn num_vertices_of_face(&self, _face: usize) -> usize {
|
|
3
|
|
}
|
|
|
|
fn position(&self, face: usize, vert: usize) -> [f32; 3] {
|
|
vertex(self, face, vert).position.into()
|
|
}
|
|
|
|
fn normal(&self, face: usize, vert: usize) -> [f32; 3] {
|
|
vertex(self, face, vert).normal.into()
|
|
}
|
|
|
|
fn tex_coord(&self, face: usize, vert: usize) -> [f32; 2] {
|
|
vertex(self, face, vert).tex_coord.into()
|
|
}
|
|
|
|
fn set_tangent_encoded(&mut self, tangent: [f32; 4], face: usize, vert: usize) {
|
|
println!(
|
|
"{face}-{vert}: v: {v:?}, vn: {vn:?}, vt: {vt:?}, vx: {vx:?}",
|
|
face = face,
|
|
vert = vert,
|
|
v = vertex(self, face, vert).position,
|
|
vn = vertex(self, face, vert).normal,
|
|
vt = vertex(self, face, vert).tex_coord,
|
|
vx = tangent,
|
|
);
|
|
}
|
|
}
|
|
|
|
fn make_cube() -> Mesh {
|
|
struct ControlPoint {
|
|
uv: [f32; 2],
|
|
dir: [f32; 3],
|
|
}
|
|
let mut faces = Vec::new();
|
|
let mut ctl_pts = Vec::new();
|
|
let mut vertices = Vec::new();
|
|
|
|
// +x plane
|
|
{
|
|
let base = ctl_pts.len() as u32;
|
|
faces.push([base, base + 1, base + 4]);
|
|
faces.push([base + 1, base + 2, base + 4]);
|
|
faces.push([base + 2, base + 3, base + 4]);
|
|
faces.push([base + 3, base, base + 4]);
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [1.0, -1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [1.0, -1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 1.0],
|
|
dir: [1.0, 1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 0.0],
|
|
dir: [1.0, 1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.5, 0.5],
|
|
dir: [1.0, 0.0, 0.0],
|
|
});
|
|
}
|
|
|
|
// -x plane
|
|
{
|
|
let base = ctl_pts.len() as u32;
|
|
faces.push([base, base + 1, base + 4]);
|
|
faces.push([base + 1, base + 2, base + 4]);
|
|
faces.push([base + 2, base + 3, base + 4]);
|
|
faces.push([base + 3, base, base + 4]);
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 0.0],
|
|
dir: [-1.0, 1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 1.0],
|
|
dir: [-1.0, 1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [-1.0, -1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [-1.0, -1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.5, 0.5],
|
|
dir: [-1.0, 0.0, 0.0],
|
|
});
|
|
}
|
|
|
|
// +y plane
|
|
{
|
|
let base = ctl_pts.len() as u32;
|
|
faces.push([base, base + 1, base + 4]);
|
|
faces.push([base + 1, base + 2, base + 4]);
|
|
faces.push([base + 2, base + 3, base + 4]);
|
|
faces.push([base + 3, base, base + 4]);
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [1.0, 1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [1.0, 1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [-1.0, 1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [-1.0, 1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.5],
|
|
dir: [0.0, 1.0, 0.0],
|
|
});
|
|
}
|
|
|
|
// -y plane
|
|
{
|
|
let base = ctl_pts.len() as u32;
|
|
faces.push([base, base + 1, base + 4]);
|
|
faces.push([base + 1, base + 2, base + 4]);
|
|
faces.push([base + 2, base + 3, base + 4]);
|
|
faces.push([base + 3, base, base + 4]);
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [-1.0, -1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [-1.0, -1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [1.0, -1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [1.0, -1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.5],
|
|
dir: [0.0, -1.0, 0.0],
|
|
});
|
|
}
|
|
|
|
// +z plane
|
|
{
|
|
let base = ctl_pts.len() as u32;
|
|
faces.push([base, base + 1, base + 4]);
|
|
faces.push([base + 1, base + 2, base + 4]);
|
|
faces.push([base + 2, base + 3, base + 4]);
|
|
faces.push([base + 3, base, base + 4]);
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [-1.0, 1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [-1.0, -1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 1.0],
|
|
dir: [1.0, -1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 0.0],
|
|
dir: [1.0, 1.0, 1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.5, 0.5],
|
|
dir: [0.0, 0.0, 1.0],
|
|
});
|
|
}
|
|
|
|
// -z plane
|
|
{
|
|
let base = ctl_pts.len() as u32;
|
|
faces.push([base, base + 1, base + 4]);
|
|
faces.push([base + 1, base + 2, base + 4]);
|
|
faces.push([base + 2, base + 3, base + 4]);
|
|
faces.push([base + 3, base, base + 4]);
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 0.0],
|
|
dir: [1.0, 1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [1.0, 1.0],
|
|
dir: [1.0, -1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 1.0],
|
|
dir: [-1.0, -1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.0, 0.0],
|
|
dir: [-1.0, 1.0, -1.0],
|
|
});
|
|
ctl_pts.push(ControlPoint {
|
|
uv: [0.5, 0.5],
|
|
dir: [0.0, 0.0, -1.0],
|
|
});
|
|
}
|
|
|
|
for pt in ctl_pts {
|
|
let p: Vec3 = pt.dir.into();
|
|
let n: Vec3 = p.normalize();
|
|
let t: Vec2 = pt.uv.into();
|
|
vertices.push(Vertex {
|
|
position: (p / 2.0).into(),
|
|
normal: n.into(),
|
|
tex_coord: t.into(),
|
|
});
|
|
}
|
|
|
|
Mesh { faces, vertices }
|
|
}
|
|
|
|
fn main() {
|
|
let mut cube = make_cube();
|
|
let ret = bevy_mikktspace::generate_tangents(&mut cube);
|
|
assert_eq!(true, ret);
|
|
}
|