Struct Camera 

pub struct Camera<Tf> {
    pub transform: Tf,
    pub dims: Dims,
    pub project: Mat4x4<ViewToProj>,
    pub viewport: Mat4x4<NdcToScreen>,
}

Type to manage the world-to-viewport transformation.

Fields

transform: Tf

World-to-view transform.

dims: Dims

Viewport width and height.

project: Mat4x4<ViewToProj>

Projection matrix.

viewport: Mat4x4<NdcToScreen>

Viewport matrix.

Implementations

impl Camera<()>

pub fn new(dims: Dims) -> Self

Creates a camera with the given resolution.

pub fn transform<T: Transform>(self, tf: T) -> Camera<T>

Sets the world-to-view transform of this camera.

impl<T> Camera<T>

pub fn viewport(self, bounds: impl Into<Rect<u32>>) -> Self

Sets the viewport bounds of this camera.

pub fn perspective(self, fov: Fov, near_far: Range<f32>) -> Self

Sets up perspective projection with the given field of view and near–far range.

The endpoints of near_far denote the distance of the near and far clipping planes.

Panics

• If any parameter value is non-positive.
• If near_far is an empty range.

pub fn orthographic(self, bounds: Range<Point3>) -> Self

Sets up orthographic projection.

impl<T: Transform> Camera<T>

pub fn world_to_project(&self) -> Mat4x4<RealToProj<World>>

Returns the composed camera and projection matrix.

pub fn render<B, Prim, Vtx: Clone, Var: Lerp + Vary, Uni: Copy, Shd>( &self, prims: impl AsRef<[Prim]>, verts: impl AsRef<[Vtx]>, to_world: &Mat4x4<RealToReal<3, B, World>>, shader: &Shd, uniform: Uni, target: &mut impl Target, ctx: &Context, )

where Prim: Render<Var> + Clone, [Prim::Clip]: Clip<Item = Prim::Clip>, Shd: for<'a> Shader<Vtx, Var, (&'a Mat4x4<RealToProj<B>>, Uni)>,

Renders the given geometry from the viewpoint of this camera.

Trait Implementations

impl<Tf: Clone> Clone for Camera<Tf>

fn clone(&self) -> Camera<Tf>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Tf: Debug> Debug for Camera<Tf>

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

Formats the value using the given formatter.

impl<Tf: Default> Default for Camera<Tf>

fn default() -> Camera<Tf>

Returns the “default value” for a type.

impl<Tf: Copy> Copy for Camera<Tf>