Struct SpriteInstanceTransform 

pub struct SpriteInstanceTransform {
    pub inv_rot: [[f32; 4]; 3],
    pub pos: [f32; 3],
    /* private fields */
}

Per-instance transform consumed by the model-DDA shader: the inverse model→world rotation (so a world ray can be brought into model-local space) plus the instance’s world position. Stored as three padded columns for std140/std430 (mat3x3 16-byte columns).

Fields

inv_rot: [[f32; 4]; 3]

Inverse of [s | h | f], column-major, each column padded to vec4. inv_rot * v = c0*v.x + c1*v.y + c2*v.z.

pos: [f32; 3]

Instance world position (the KV6 pivot maps here).

Implementations

impl SpriteInstanceTransform

pub fn from_sprite(sprite: &Sprite) -> Self

Build from a sprite pose. s/h/f are the model→world basis columns; we invert them so the shader can map world→local.

Trait Implementations

impl Clone for SpriteInstanceTransform

fn clone(&self) -> SpriteInstanceTransform

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SpriteInstanceTransform

impl Debug for SpriteInstanceTransform

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Pod for SpriteInstanceTransform

impl Zeroable for SpriteInstanceTransform

fn zeroed() -> Self

Calls zeroed.