Struct FontAtlas

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pub struct FontAtlas {
    pub width: u32,
    pub height: u32,
    pub pixels: Vec<u8>,
    pub uvs: HashMap<char, GlyphUv>,
    pub cell_w: u32,
    pub cell_h: u32,
    pub is_sdf: bool,
}

Expand description

Complete font atlas ready to upload to the GPU. Uses Signed Distance Field (SDF) encoding for resolution-independent rendering. Each pixel stores the distance to the nearest edge: 128 = on the edge

128 = inside the glyph <128 = outside the glyph

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§width: u32§height: u32§pixels: Vec<u8>

R8 pixel data – SDF encoded (128 = edge, >128 = inside, <128 = outside).

§uvs: HashMap<char, GlyphUv>§cell_w: u32§cell_h: u32§is_sdf: bool

Whether this atlas uses SDF encoding (vs raw coverage).

Implementations§

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impl FontAtlas

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pub fn build(px_size: f32) -> Self

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pub fn uv_for(&self, ch: char) -> GlyphUv

Auto Trait Implementations§

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impl UnwindSafe for FontAtlas

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
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