Make ray3::decay_ distinguishable between different color channels.

1 files changed, 6 insertions, 3 deletions

diff --git a/material.h b/material.h
index a1d03db..b839cc9 100644
--- a/material.h
+++ b/material.h
@@ -22,24 +22,27 @@ public:
 };
 
 class material_diffuse_lambertian : public material {
-    double albedo;
+    vec3d albedo;
 public:
+    explicit material_diffuse_lambertian(vec3d albedo);
     explicit material_diffuse_lambertian(double albedo);
 
     bool scatter(ray3d &r, const object &hit_obj, double hit_t, random_uv_gen_3d &ruvg) const override;
 };
 
 class material_diffuse_simple : public material {
-    double albedo;
+    vec3d albedo;
 public:
+    explicit material_diffuse_simple(vec3d albedo);
     explicit material_diffuse_simple(double albedo);
 
     bool scatter(ray3d &r, const object &hit_obj, double hit_t, random_uv_gen_3d &ruvg) const override;
 };
 
 class material_diffuse_hemispherical : public material {
-    double albedo;
+    vec3d albedo;
 public:
+    explicit material_diffuse_hemispherical(vec3d albedo);
     explicit material_diffuse_hemispherical(double albedo);
 
     bool scatter(ray3d &r, const object &hit_obj, double hit_t, random_uv_gen_3d &ruvg) const override;