init

1 files changed, 33 insertions, 0 deletions

diff --git a/src/material/isotropic.rs b/src/material/isotropic.rs
new file mode 100644
index 0000000..f59fa7d
--- /dev/null
+++ b/src/material/isotropic.rs
@@ -0,0 +1,33 @@
+use std::sync::Arc;
+
+use super::Material;
+use crate::{hittable::HitRecord, texture::Texture, vec3::Vec3};
+use crate::vec3::Color;
+use crate::texture::SolidColor;
+use crate::ray::Ray;
+
+pub struct Isotropic {
+    albedo: Arc<dyn Texture>,
+}
+
+impl Isotropic {
+    pub fn from_color(color: Color) -> Self {
+        Self {
+            albedo: Arc::new(SolidColor::from_color(color)),
+        }
+    }
+
+    pub fn from_texture(texture: Arc<dyn Texture>) -> Self {
+        Self {
+            albedo: texture,
+        }
+    }
+}
+
+impl Material for Isotropic {
+    fn scatter(&self, ray_in: &Ray, hit_record: &HitRecord, attenuation: &mut Color, scattered: &mut Ray) -> bool {
+        *scattered = Ray { origin: hit_record.p.clone(), direction: Vec3::random_in_unit_sphere(), time: ray_in.time };
+        *attenuation = self.albedo.value(hit_record.u, hit_record.v, &hit_record.p);
+        true
+    }
+}