rtiow: AABB more compact Debug representation. Loosen assertions.

rtiow/renderer/src/aabb.rs

@@ -2,7 +2,7 @@ use std::fmt;
 
 use crate::{ray::Ray, vec3::Vec3};
 
-#[derive(Default, Debug, Copy, Clone, PartialEq)]
+#[derive(Default, Copy, Clone, PartialEq)]
 pub struct AABB {
     bounds: [Vec3; 2],
 }
@@ -29,13 +29,25 @@ fn max(x: f32, y: f32) -> f32 {
     }
 }
 
+impl fmt::Debug for AABB {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(
+            f,
+            "AABB: <{} - {}> Vol: {}",
+            self.bounds[0],
+            self.bounds[1],
+            self.volume()
+        )
+    }
+}
+
 impl AABB {
     pub fn new<V: Into<Vec3>>(min: V, max: V) -> AABB {
         let min: Vec3 = min.into();
         let max: Vec3 = max.into();
-        assert!(min.x < max.x);
-        assert!(min.y < max.y);
-        assert!(min.z < max.z);
+        assert!(min.x <= max.x);
+        assert!(min.y <= max.y);
+        assert!(min.z <= max.z);
         AABB { bounds: [min, max] }
     }