diff --git a/Assets/Cryville/Crtr/Settings.cs b/Assets/Cryville/Crtr/Settings.cs
index 089881c..f18c9c9 100644
--- a/Assets/Cryville/Crtr/Settings.cs
+++ b/Assets/Cryville/Crtr/Settings.cs
@@ -6,7 +6,7 @@ using RangeAttribute = Cryville.Common.ComponentModel.RangeAttribute;
 namespace Cryville.Crtr {
 	public class Settings {
 		[Category("graphics")]
-		[LogarithmicScale][Step(0.5f)][Precision(1e-2)]
+		[LogarithmicScale][Range(0.01f, 20f)][Step(0.5f)][Precision(1e-2)]
 		public float BackwardClippingDistance {
 			get {
 				return PlayerPrefs.GetFloat("BackwardClippingDistance", 0.2f);
@@ -132,7 +132,7 @@ namespace Cryville.Crtr {
 		}
 
 		[Category("graphics")]
-		[LogarithmicScale][Step(0.5f)][Precision(1e-1)]
+		[LogarithmicScale][Range(0.1f, 200f)][Step(0.5f)][Precision(1e-1)]
 		public float RenderDistance {
 			get {
 				return PlayerPrefs.GetFloat("RenderDistance", 4);