Struct Transform 

pub struct Transform {
    pub position: Vec3,
    pub orientation: Quat,
    pub scale: Vec3,
}

A world-space placement: position, orientation, and (optionally) scale. 一个世界空间中的放置：位置、朝向和（可选的）缩放。

Scale defaults to one and is intentionally distinct from position so a renderer or physics step can ignore it without ambiguity. 缩放默认为 1，并刻意与位置区分开，以便渲染器或物理步进能够毫无歧义地忽略它。

Fields

position: Vec3

orientation: Quat

scale: Vec3

Implementations

impl Transform

pub const fn from_position(position: Vec3) -> Self

pub const fn from_position_orientation( position: Vec3, orientation: Quat, ) -> Self

pub fn to_matrix(self) -> Mat4

Compose into a single model matrix (scale → rotate → translate). 组合成单个模型矩阵（缩放 → 旋转 → 平移）。

pub fn forward(self) -> Vec3

Local +Z transformed into world space. 局部 +Z 轴变换到世界空间。

pub fn up(self) -> Vec3

Local +Y transformed into world space. 局部 +Y 轴变换到世界空间。

pub fn right(self) -> Vec3

Local +X transformed into world space. 局部 +X 轴变换到世界空间。

Trait Implementations

impl Clone for Transform

fn clone(&self) -> Transform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Transform

impl Debug for Transform

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

Formats the value using the given formatter.

impl Default for Transform

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Transform

fn eq(&self, other: &Transform) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Transform