Redefine Scene struct

src/main.rs

@@ -11,20 +11,20 @@ mod camera; use camera::*;
 mod types; use types::*;
 mod object; use object::*;
 
-fn trace(ray: Ray, scene: &Scene) -> Option<(&Object, f32)> {
-    scene.iter()
+fn trace(ray: Ray, objects: &Vec<Object>) -> Option<(&Object, f32)> {
+    objects.iter()
            .filter_map(|obj| obj.intersect(ray)
                                 .map(|x| (obj, x)))
            .min_by(|a, b| a.1.partial_cmp(&b.1).unwrap_or(Ordering::Equal))
 }
 
 fn cast_ray(ray: Ray, scene: &Scene) -> Color {
-    if let Some((obj, dist)) = trace(ray, scene) {
+    if let Some((obj, dist)) = trace(ray, &scene.objects) {
         let point = ray.project(dist);
 
         obj.getcolor(point)
     }
-    else { Color::black() }
+    else { scene.background }
 }
 
 fn render(camera: &Camera, scene: &Scene, filename: &str) -> std::io::Result<()> {
@@ -54,9 +54,12 @@ fn main() -> std::io::Result<()> {
 
     let camera = Camera::new(Point3::new(0.0,0.0,0.0), Vector3::new(0.0,0.0,1.0), 1.0, 16.0 / 9.0, 2.0, 480);
 
-    let scene = vec![
-        Object::new_boundless(TriangleMesh::singleton(Point3::new(-1.0, -1.0, 2.0), Point3::new(0.0, 1.0, 2.0), Point3::new(1.0, -1.0, 2.0), |t, u, v| Color::new(t, u, v)))
-    ];
+    let scene = Scene {
+        objects: vec![
+            Object::new(TriangleMesh::singleton(Point3::new(-1.0, -1.0, 2.0), Point3::new(0.0, 1.0, 2.0), Point3::new(1.0, -1.0, 2.0), |t, u, v| Color::new(t, u, v)))
+        ],
+        background: Color::black()
+    };
 
     render(&camera, &scene, "out.ppm")
 }

src/object.rs

@@ -70,7 +70,11 @@ impl Object {
     pub fn getcolor(&self, point: Point3<f32>) -> Color { self.surface.getcolor(point) }
 }
 
-pub type Scene = Vec<Object>;
+pub struct Scene {
+    pub objects: Vec<Object>,
+
+    pub background: Color
+}
 
 #[cfg(test)]
 mod tests {

src/object/triangle.rs

@@ -205,7 +205,6 @@ impl Surface for TriangleMesh {
         }
 
         fn smallest_sphere(points: Vec<&Point3<f32>>, boundary: Vec<&Point3<f32>>) -> (Point3<f32>, f32) {
-            println!("{:?}\n{:?}\n", points, boundary);
             if points.len() == 0 || boundary.len() == 4 {
                 match boundary.len() {
                     0 => (Point3::new(0.0, 0.0, 0.0), 0.0),