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-rw-r--r--graphics/src/triangle.rs33
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)
+ }
}