diff --git a/src/main.rs b/src/main.rs
index b102f18..42c356f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -54,12 +54,14 @@ fn ypr_to_mat(ypr: Vec3) -> Mat3 {
 	m_roll * m_pitch * m_yaw
 }
 
+type Mesh = [Face];
+
 struct TraceResult {
 	distance: f32,
 	normal: Vec3,
 }
 
-fn trace_to_mesh(mesh: &[Face], base: Vec3, ray: Vec3) -> Option<TraceResult> {
+fn trace_to_mesh(mesh: &Mesh, base: Vec3, ray: Vec3) -> Option<TraceResult> {
 	let mut ret: Option<TraceResult> = None;
 	let mut dist = f32::INFINITY;
 	for f in mesh {
@@ -84,7 +86,7 @@ fn trace_to_mesh(mesh: &[Face], base: Vec3, ray: Vec3) -> Option<TraceResult> {
 	ret
 }
 
-fn render(mesh: &[Face], camera: impl Fn(Vec2) -> (Vec3, Vec3)) -> Image {
+fn render(mesh: &Mesh, camera: impl Fn(Vec2) -> (Vec3, Vec3)) -> Image {
 	let bkg = vec3(0.0, 0.0, 0.0);
 	let mut img = Image {
 		w: W,
@@ -102,7 +104,7 @@ fn render(mesh: &[Face], camera: impl Fn(Vec2) -> (Vec3, Vec3)) -> Image {
 			} else {
 				bkg
 			};
-			let color = clamp(to_ivec3(color * 255.0), ivec3(0, 0, 0), ivec3(255, 255, 255));
+			let color = clamp_s(to_ivec3(color * 255.0), 0, 255);
 			img.put_pixel(x, y, Color(color.x as u8, color.y as u8, color.z as u8));
 		}
 	}