Struct GeometryRenderer 

pub struct GeometryRenderer { /* private fields */ }

GPU-accelerated geometry renderer.

Renders 2D shapes and paths using tessellation and instanced rendering.

Implementations

impl GeometryRenderer

pub fn new(context: Arc<GraphicsContext>) -> Self

Create a new geometry renderer with default configuration.

pub fn from_window(context: Arc<GraphicsContext>, window: &RenderWindow) -> Self

Create renderer from a RenderWindow, matching its format configuration.

This is the recommended constructor as it ensures the renderer’s pipelines are compatible with the window’s render pass configuration.

pub fn with_descriptor( context: Arc<GraphicsContext>, descriptor: GeometryRendererDescriptor, ) -> Self

Create renderer with explicit configuration.

pub fn descriptor(&self) -> &GeometryRendererDescriptor

Get the current renderer configuration.

pub fn reconfigure(&mut self, descriptor: GeometryRendererDescriptor)

Reconfigure the renderer with new format settings.

This recreates all pipelines with the new configuration. Buffers and non-format-dependent resources are preserved.

Use Case

When a window is moved to a different monitor, the surface format may change. Call this method to update the renderer to match.

pub fn reconfigure_from_window(&mut self, window: &RenderWindow)

Reconfigure from a window, inheriting its format configuration.

Convenience method equivalent to:

renderer.reconfigure(GeometryRendererDescriptor::from_window(window));

pub fn set_tolerance(&mut self, tolerance: f32)

Set the tessellation tolerance.

pub fn clear(&mut self)

Clear all draw commands.

pub fn draw_shape(&mut self, shape: &Shape, style: &Style)

Draw a shape with the given style.

pub fn draw_path(&mut self, path: &Path, style: &Style)

Draw a path with the given style.

pub fn draw_rect(&mut self, position: Vec2, size: Vec2, color: Color)

Draw a filled rectangle.

pub fn draw_circle(&mut self, center: Vec2, radius: f32, color: Color)

Draw a filled circle.

pub fn draw_line(&mut self, start: Vec2, end: Vec2, width: f32, color: Color)

Draw a line.

pub fn draw_rect_stroke(&mut self, position: Vec2, size: Vec2, stroke: &Stroke)

Draw a stroked rectangle.

pub fn draw_circle_stroke(&mut self, center: Vec2, radius: f32, stroke: &Stroke)

Draw a stroked circle.

pub fn draw_shape_fill(&mut self, shape: &Shape, color: Color)

Draw a filled shape directly.

pub fn draw_shape_stroke(&mut self, shape: &Shape, stroke: &Stroke)

Draw a stroked shape directly.

pub fn draw_path_fill(&mut self, path: &Path, color: Color, fill_rule: FillRule)

Draw a path with fill only.

pub fn draw_path_stroke(&mut self, path: &Path, stroke: &Stroke)

Draw a path with stroke only.

pub fn set_scissor(&mut self, scissor: ScissorRect)

Set a scissor rectangle to clip subsequent drawing.

All geometry drawn after this call will be clipped to the specified rectangle. Call reset_scissor() to restore full viewport rendering.

pub fn reset_scissor(&mut self)

Reset scissor to full viewport (no clipping).

pub fn render(&mut self, pass: &mut RenderPass<'_>, viewport: Viewport)

Render all queued geometry.