Function push_rectangle_indices

pub fn push_rectangle_indices(
    ul: u32,
    ur: u32,
    dl: u32,
    dr: u32,
    out: &mut Vec<[u32; 3]>,
)

Pushes two triangles forming a rectangle to the index buffer.

Given four corner point indices, this function creates two counter-clockwise triangles that form a rectangle (quad). The winding order ensures the normal points in the consistent direction based on the right-hand rule.

Arguments

• ul - Index of the upper-left point
• ur - Index of the upper-right point
• dl - Index of the down-left point
• dr - Index of the down-right point
• out - Output buffer where triangle indices will be pushed

Example

use parry3d::transformation::utils::push_rectangle_indices;

let mut indices = Vec::new();

// Create a quad from points 0, 1, 2, 3
// Layout:  0 --- 1
//          |     |
//          2 --- 3
push_rectangle_indices(0, 1, 2, 3, &mut indices);

assert_eq!(indices.len(), 2); // Two triangles
assert_eq!(indices[0], [0, 2, 3]); // First triangle
assert_eq!(indices[1], [3, 1, 0]); // Second triangle