Struct MaterialPainter 

pub struct MaterialPainter {
    pub layers: Vec<PaintLayer>,
    pub active_layer: usize,
    pub brush: Brush,
    pub presets: Vec<MaterialPreset>,
    pub show_layers: bool,
    pub show_params: bool,
    pub recent_colors: Vec<Vec4>,
    /* private fields */
}

Top-level material painter state.

Fields

layers: Vec<PaintLayer>

active_layer: usize

brush: Brush

presets: Vec<MaterialPreset>

Preset library — available materials for quick selection.

show_layers: bool

Whether to show the layer panel in the UI.

show_params: bool

Whether to show the material param panel in the UI.

recent_colors: Vec<Vec4>

Custom colour palette (recent colours).

Implementations

impl MaterialPainter

pub fn new() -> Self

pub fn add_layer(&mut self, name: impl Into<String>) -> usize

pub fn remove_layer(&mut self, idx: usize)

pub fn move_layer_up(&mut self, idx: usize)

pub fn move_layer_down(&mut self, idx: usize)

pub fn active_layer(&self) -> &PaintLayer

pub fn active_layer_mut(&mut self) -> &mut PaintLayer

pub fn begin_stroke(&mut self, surface_p: Vec3)

Begin a paint stroke at surface_p (world space on the SDF surface).

pub fn continue_stroke(&mut self, surface_p: Vec3)

Continue a stroke as the cursor moves.

pub fn end_stroke(&mut self)

End the current stroke.

pub fn erase_at(&mut self, p: Vec3, radius: f32)

Erase all patches on the active layer within radius of p.

pub fn classify(&self, p: Vec3) -> Option<(MaterialTag, &MaterialParams)>

Return the best material tag and params for a world-space point. Layers are composited in order (last visible layer covering the point wins).

pub fn classify_or_default(&self, p: Vec3) -> (MaterialTag, MaterialParams)

Return the default material if no patch covers p.

pub fn undo(&mut self)

pub fn redo(&mut self)

pub fn save_preset(&mut self, name: impl Into<String>)

pub fn apply_preset(&mut self, idx: usize)

pub fn total_patches(&self) -> usize

pub fn status_line(&self) -> String

Trait Implementations

impl Debug for MaterialPainter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MaterialPainter

fn default() -> Self

Returns the “default value” for a type.