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PostEffect

lunar_render

Trait PostEffect 

Source 
pub trait PostEffect:
    Send
    + Sync
    + 'static {
    // Required method
    fn apply(&self, queue: &mut RenderQueue, window_w: f32, window_h: f32);
}
Expand description

trait for a custom post-processing effect applied each frame after the main render.

implement this and push instances onto PostProcessStack to draw screen-space overlays. uses layers::POST_PROCESS coordinates: top-left is (0, 0), bottom-right is (window_w, window_h).

§example

ⓘ
use lunar::prelude::*;

struct Vignette;
impl PostEffect for Vignette {
    fn apply(&self, queue: &mut RenderQueue, w: f32, h: f32) {
        let border = 40.0;
        let color = Color::rgba(0.0, 0.0, 0.0, 0.35);
        queue.draw_screen_rect(Vec2::ZERO, Vec2::new(w, border), color);
        queue.draw_screen_rect(Vec2::new(0.0, h - border), Vec2::new(w, border), color);
    }
}

Required Methods§

Source

fn apply(&self, queue: &mut RenderQueue, window_w: f32, window_h: f32)

draw the effect’s commands into the queue. window_w and window_h are the current surface dimensions in pixels.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§