Struct nannou::vk::ViewportBuilder

pub struct ViewportBuilder {
    pub origin: Option<[f32; 2]>,
    pub depth_range: Option<Range<f32>>,
}

A builder struct that makes the process of building a Viewport more modular.

Fields

origin: Option<[f32; 2]>

depth_range: Option<Range<f32>>

Methods

impl ViewportBuilder

pub const DEFAULT_ORIGIN: [f32; 2]

pub const DEFAULT_DEPTH_RANGE: Range<f32>

pub fn new() -> Self

Begin building a new Viewport.

pub fn origin(self, origin: [f32; 2]) -> Self

Coordinates in pixels of the top-left hand corner of the viewport.

By default this is ViewportDefault::DEFAULT_ORIGIN.

pub fn depth_range(self, range: Range<f32>) -> Self

Minimum and maximum values of the depth.

The values 0.0 to 1.0 of each vertex's Z coordinate will be mapped to this depth_range before being compared to the existing depth value.

This is equivalents to glDepthRange in OpenGL, except that OpenGL uses the Z coordinate range from -1.0 to 1.0 instead.

By default this is ViewportDefault::DEFAULT_DEPTH_RANGE.

pub fn build(self, dimensions: [f32; 2]) -> Viewport

Construct the viewport with its dimensions in pixels.

Trait Implementations

impl Default for ViewportBuilder

fn default() -> ViewportBuilder

Returns the "default value" for a type.

impl Clone for ViewportBuilder

fn clone(&self) -> ViewportBuilder

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<ViewportBuilder> for ViewportBuilder

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Debug for ViewportBuilder

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

Formats the value using the given formatter.