1 files changed, 22 insertions, 0 deletions
diff --git a/src/camera/filter/mod.rs b/src/camera/filter/mod.rs
new file mode 100644
index 0000000..93c6fc5
--- /dev/null
+++ b/src/camera/filter/mod.rs
@@ -0,0 +1,22 @@
+use crate::vector::Vector2f;
+use crate::Float;
+
+pub trait Filter {
+    fn eval(&self, point: &Vector2f) -> Float;
+    fn radius(&self) -> Vector2f;
+}
+
+pub struct BoxFilter {
+    radius: Vector2f,
+}
+
+// The same a no filter, and can give aliasing in final image
+impl Filter for BoxFilter {
+    fn eval(&self, _: &Vector2f) -> Float {
+        1.0
+    }
+
+    fn radius(&self) -> Vector2f {
+        self.radius
+    }
+}