From 94b14ec5a24f587c97b11d6c56b9116a58a7385a Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Sun, 7 Mar 2021 18:25:35 +0100
Subject: Add light materials

---
 src/material/diffuse_light.rs | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 src/material/diffuse_light.rs

(limited to 'src/material/diffuse_light.rs')

diff --git a/src/material/diffuse_light.rs b/src/material/diffuse_light.rs
new file mode 100644
index 0000000..fe462a8
--- /dev/null
+++ b/src/material/diffuse_light.rs
@@ -0,0 +1,27 @@
+use super::Material;
+use crate::core::{Ray, Spectrum};
+use crate::Float;
+
+pub struct DiffuseLight {
+    color: Spectrum,
+}
+
+impl DiffuseLight {
+    pub fn new(c: Spectrum) -> Self {
+        Self {
+            color: c,
+        }
+    }
+
+    pub fn new_white(s: Float) -> Self {
+        Self {
+            color: Spectrum::new_rgb(s, s, s),
+        }
+    }
+}
+
+impl Material for DiffuseLight {
+    fn emitted(&self, _: &Ray) -> Option<Spectrum> {
+        Some(self.color)
+    }
+}
-- 
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