Struct three_d::renderer::object::Imposters

pub struct Imposters { /* private fields */ }

A level-of-detail technique to replace rendering of high-poly meshes. Should only be used where details cannot be seen, for example when the objects are far away. A set of objects are rendered from different angles into a set of textures and the textures are then rendered continuously instead of the expensive objects.

Implementations

impl Imposters

pub fn new(
    context: &Context,
    positions: &[Vec3],
    objects: &[&dyn Object],
    lights: &[&dyn Light],
    max_texture_size: u32
) -> ThreeDResult<Self>

Constructs a new Imposters and render the imposter texture from the given objects with the given lights. The imposters are placed at the given positions.

pub fn set_positions(&mut self, positions: &[Vec3]) -> ThreeDResult<()>

Set the positions of the imposters.

pub fn update_texture(
    &mut self,
    objects: &[&dyn Object],
    lights: &[&dyn Light],
    max_texture_size: u32
) -> ThreeDResult<()>

Render the imposter texture from the given objects with the given lights. Use this if you want to update the look of the imposters.

Trait Implementations

impl Geometry for Imposters

fn render_with_material(
    &self,
    material: &dyn Material,
    camera: &Camera,
    lights: &[&dyn Light]
) -> ThreeDResult<()>

Render the geometry with the given material. Must be called in the callback given as input to a RenderTarget, ColorTarget or DepthTarget write method. Use an empty array for the lights argument, if the objects does not require lights to be rendered.

fn aabb(&self) -> AxisAlignedBoundingBox

Returns the AxisAlignedBoundingBox for this geometry in the global coordinate system.

impl Object for Imposters

fn render(&self, camera: &Camera, lights: &[&dyn Light]) -> ThreeDResult<()>

Render the object. Use an empty array for the lights argument, if the objects does not require lights to be rendered. Must be called in the callback given as input to a RenderTarget, ColorTarget or DepthTarget write method.

fn is_transparent(&self) -> bool

Returns whether or not this object should be considered transparent.