bevy_mod_outline 0.13.0

A mesh outlining plugin for Bevy.
Documentation 
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#import bevy_mod_outline::common::VertexOutput

struct FragmentOutput {
    @location(0) colour: vec4<f32>,
#ifdef FLAT_DEPTH
    @builtin(frag_depth) frag_depth: f32,
#endif
};

#ifdef ALPHA_MASK_TEXTURE
@group(3) @binding(0) var alpha_mask_texture: texture_2d<f32>;
@group(3) @binding(1) var alpha_mask_sampler: sampler;
#endif

@fragment
fn fragment(vertex: VertexOutput) -> FragmentOutput {
    var out: FragmentOutput;

#ifdef ALPHA_MASK_TEXTURE
    let alpha_mask = textureSample(alpha_mask_texture, alpha_mask_sampler, vertex.uv)[#{ALPHA_MASK_CHANNEL}];
    if (alpha_mask < vertex.alpha_mask_threshold) {
        discard;
    }
#endif

#ifdef FLAT_DEPTH
    out.frag_depth = vertex.flat_depth;
#endif
#ifdef VOLUME
    out.colour = vertex.volume_colour;
#endif
#ifdef FLOOD_INIT
#ifdef MSAA
    out.colour = vec4<f32>(1.0, 0.0, 0.0, 0.0);
#else
    out.colour = vec4<f32>(0.0, 0.0, 0.0, 0.0);
#endif
#endif
    return out;
}