Struct UVUnwrap 

pub struct UVUnwrap;

UV unwrapping projection modes.

Implementations

impl UVUnwrap

pub fn cylindrical(position: Vec3, height: f32) -> [f32; 2]

Cylindrical UV projection around the Y axis.

Maps position to UV: u = atan2(z, x) / TAU, v = y / height.

pub fn spherical(position: Vec3) -> [f32; 2]

Spherical UV projection.

Maps position to UV using spherical coordinates.

pub fn box_projection(position: Vec3, normal: Vec3) -> [f32; 2]

Box (cube) projection — project from the most-facing axis.

pub fn planar( position: Vec3, origin: Vec3, u_axis: Vec3, v_axis: Vec3, ) -> [f32; 2]

Planar projection onto a plane defined by origin, u-axis, and v-axis.

pub fn camera_projection( position: Vec3, camera_pos: Vec3, camera_forward: Vec3, camera_up: Vec3, fov: f32, ) -> [f32; 2]

Camera (view-space) projection.

pub fn cylindrical_array(positions: &[Vec3], height: f32) -> Vec<[f32; 2]>

Unwrap an array of positions using cylindrical projection.

pub fn spherical_array(positions: &[Vec3]) -> Vec<[f32; 2]>

Unwrap an array of positions using spherical projection.

pub fn box_projection_array( positions: &[Vec3], normals: &[Vec3], ) -> Vec<[f32; 2]>

Unwrap an array using box projection.

pub fn fix_seams(uvs: &mut [[f32; 2]], indices: &[[u32; 3]])

Fix UV seams for cylindrical/spherical projections.

When a triangle spans the 0/1 boundary in U, this adjusts UVs to prevent stretching.