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GlyphItem

viewport_lib::renderer

Struct GlyphItem 

Source 
#[non_exhaustive]
pub struct GlyphItem {
Show 13 fields
    pub positions: Vec<[f32; 3]>,
    pub vectors: Vec<[f32; 3]>,
    pub scale: f32,
    pub scale_by_magnitude: bool,
    pub magnitude_clamp: Option<(f32, f32)>,
    pub scalars: Vec<f32>,
    pub scalar_range: Option<(f32, f32)>,
    pub colormap_id: Option<ColormapId>,
    pub default_color: [f32; 4],
    pub use_default_color: bool,
    pub glyph_type: GlyphType,
    pub model: [[f32; 4]; 4],
    pub id: u64,

}
Expand description

A set of instanced glyphs to render (e.g. velocity arrows).

Fields (Non-exhaustive)§

This struct is marked as non-exhaustive
Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.
§positions: Vec<[f32; 3]>

World-space base positions (one per glyph instance).

§vectors: Vec<[f32; 3]>

Per-instance direction vectors. Length = magnitude (used for orientation + optional scale).

§scale: f32

Global scale factor applied to all glyph instances. Default: 1.0.

§scale_by_magnitude: bool

Whether glyph size scales with vector magnitude. Default: true.

§magnitude_clamp: Option<(f32, f32)>

Clamp magnitude range for scaling. None = no clamping.

§scalars: Vec<f32>

Optional per-instance scalar values for LUT coloring. Empty = color by magnitude.

§scalar_range: Option<(f32, f32)>

Scalar range for LUT mapping. None = auto from data.

§colormap_id: Option<ColormapId>

Colormap for scalar coloring. None = use default builtin (viridis).

§default_color: [f32; 4]

Fallback RGBA color used when use_default_color is true. Default: transparent (unused).

§use_default_color: bool

When true, glyphs are colored by default_color (with per-instance scalar as brightness) instead of the LUT. Default: false.

§glyph_type: GlyphType

Glyph shape. Default: Arrow.

§model: [[f32; 4]; 4]

World-space model matrix. Default: identity.

§id: u64

Unique ID for picking. 0 = not pickable.

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impl Default for GlyphItem

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fn default() -> Self

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