diff --git a/ClassicalSharp/Entities/Particles/Particle.cs b/ClassicalSharp/Entities/Particles/Particle.cs
index 5fd736ab2..991712162 100644
--- a/ClassicalSharp/Entities/Particles/Particle.cs
+++ b/ClassicalSharp/Entities/Particles/Particle.cs
@@ -7,9 +7,8 @@ namespace ClassicalSharp.Particles {
 		
 		public Vector3 Position;
 		public Vector3 Velocity;
-		public Vector2 Size = new Vector2( 1 / 16f, 1 / 16f );
 		public TextureRectangle Rectangle;
-		public double Lifetime;
+		public float Lifetime;
 		protected Game game;
 		protected Vector3 lastPos, nextPos;
 
@@ -21,16 +20,17 @@ namespace ClassicalSharp.Particles {
 			game = window;
 			Position = lastPos = nextPos = pos;
 			Velocity = velocity;
-			Lifetime = lifetime;
+			Lifetime = (float)lifetime;
 			Rectangle = rec;
 		}
 		
 		public virtual bool Tick( double delta ) {
-			Lifetime -= delta;
+			Lifetime -= (float)delta;
 			return Lifetime < 0;
 		}
 		
 		// http://www.opengl-tutorial.org/intermediate-tutorials/billboards-particles/billboards/
+		protected static Vector2 Size;
 		protected void TranslatePoints( out Vector3 p111, out Vector3 p121, out Vector3 p212, out Vector3 p222 ) {			
 			Vector3 centre = Position;
 			Matrix4 camera = game.View;
diff --git a/ClassicalSharp/Entities/Particles/TerrainParticle.cs b/ClassicalSharp/Entities/Particles/TerrainParticle.cs
index 01311ea49..4354168b9 100644
--- a/ClassicalSharp/Entities/Particles/TerrainParticle.cs
+++ b/ClassicalSharp/Entities/Particles/TerrainParticle.cs
@@ -6,6 +6,7 @@ namespace ClassicalSharp.Particles {
 	public sealed class TerrainParticle : Particle {
 		
 		const float gravity = 2.4f;
+		static Vector2 terrainSize = new Vector2( 1/16f, 1/16f );
 		
 		public TerrainParticle( Game game, Vector3 pos, Vector3 velocity, double lifetime, TextureRectangle rec )
 			: base( game, pos, velocity, lifetime, rec ) {
@@ -14,6 +15,7 @@ namespace ClassicalSharp.Particles {
 		public override void Render( double delta, float t, VertexPos3fTex2fCol4b[] vertices, ref int index ) {
 			Position = Vector3.Lerp( lastPos, nextPos, t );
 			Vector3 p111, p121, p212, p222;
+			Size = terrainSize;
 			TranslatePoints( out p111, out p121, out p212, out p222 );
 			Map map = game.Map;
 			FastColour col = map.IsLit( Vector3I.Floor( Position ) ) ? map.Sunlight : map.Shadowlight;