diff options
Diffstat (limited to 'graphics/src/triangle.rs')
-rw-r--r-- | graphics/src/triangle.rs | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/graphics/src/triangle.rs b/graphics/src/triangle.rs index 05028f51..04ff6d21 100644 --- a/graphics/src/triangle.rs +++ b/graphics/src/triangle.rs @@ -1,4 +1,6 @@ //! Draw geometry using meshes of triangles. +use crate::{Color, Gradient}; + use bytemuck::{Pod, Zeroable}; /// A set of [`Vertex2D`] and indices representing a list of triangles. @@ -6,20 +8,37 @@ use bytemuck::{Pod, Zeroable}; pub struct Mesh2D { /// The vertices of the mesh pub vertices: Vec<Vertex2D>, - /// The list of vertex indices that defines the triangles of the mesh. /// - /// Therefore, this list should always have a length that is a multiple of - /// 3. + /// Therefore, this list should always have a length that is a multiple of 3. pub indices: Vec<u32>, } -/// A two-dimensional vertex with some color in __linear__ RGBA. +/// A two-dimensional vertex. #[derive(Copy, Clone, Debug, Zeroable, Pod)] #[repr(C)] pub struct Vertex2D { - /// The vertex position + /// The vertex position in 2D space. pub position: [f32; 2], - /// The vertex color in __linear__ RGBA. - pub color: [f32; 4], +} + +#[derive(Debug, Clone, PartialEq)] +/// Supported shaders for triangle primitives. +pub enum Style { + /// Fill a primitive with a solid color. + Solid(Color), + /// Fill a primitive with an interpolated color. + Gradient(Gradient), +} + +impl From<Color> for Style { + fn from(color: Color) -> Self { + Self::Solid(color) + } +} + +impl From<Gradient> for Style { + fn from(gradient: Gradient) -> Self { + Self::Gradient(gradient) + } } |