1 files changed, 8 insertions, 0 deletions
diff --git a/src/linalg.h b/src/linalg.h
index 41aa730..65243dc 100644
--- a/src/linalg.h
+++ b/src/linalg.h
@@ -19,6 +19,14 @@ BoundingBox operator*(const Transform3d &m, const BoundingBox &box);
 class Color4f : public Eigen::Vector4f
 {
 public:
+	Color4f() { }
+	Color4f(int r, int g, int b, int a = 255) { setRgb(r,g,b,a); }
+	Color4f(float r, float g, float b, float a = 1.0f) : Eigen::Vector4f(r, g, b, a) { }
+
+	void setRgb(int r, int g, int b, int a = 255) {
+		*this << r/255.0f, g/255.0f, b/255.0f, a/255.0f;
+	}
+
 	bool isValid() const { return this->minCoeff() >= 0.0f; }
 };