1 files changed, 35 insertions, 0 deletions
diff --git a/src/core/spectrum.rs b/src/core/spectrum.rs
new file mode 100644
index 0000000..604c8c0
--- /dev/null
+++ b/src/core/spectrum.rs
@@ -0,0 +1,35 @@
+use crate::Float;
+use std::ops;
+
+// TODO implement SampledSpectrum instead for nicer images
+
+#[derive(Clone, Default)]
+pub struct Spectrum {
+    c: [Float; 3],
+}
+
+impl Spectrum {
+    fn new_rgb(r: Float, g: Float, b: Float) -> Spectrum {
+        Spectrum { c: [r, g, b] }
+    }
+}
+
+impl std::ops::Mul<Float> for &Spectrum {
+    type Output = Spectrum;
+
+    fn mul(self, op: Float) -> Self::Output {
+        Self::Output::new_rgb(
+            self.c[0] * op,
+            self.c[1] * op,
+            self.c[2] * op,
+            )
+    }
+}
+
+impl std::ops::AddAssign<&Self> for Spectrum {
+    fn add_assign(&mut self, op: &Self) {
+        self.c[0] += op.c[0];
+        self.c[1] += op.c[1];
+        self.c[2] += op.c[2];
+    }
+}