diff --git a/chunky/src/java/se/llbit/chunky/renderer/RenderWorkerPool.java b/chunky/src/java/se/llbit/chunky/renderer/RenderWorkerPool.java
index 51b129d5d..1749b2759 100644
--- a/chunky/src/java/se/llbit/chunky/renderer/RenderWorkerPool.java
+++ b/chunky/src/java/se/llbit/chunky/renderer/RenderWorkerPool.java
@@ -44,6 +44,7 @@ public static class RenderWorker extends Thread {
 
     public final Random random;
     public final int id;
+    public final WorkerState state = new WorkerState();
 
     private long lastSleep;
     private long sleepTime = 0;
@@ -56,6 +57,7 @@ public RenderWorker(RenderWorkerPool pool, int id, long seed) {
       this.pool = pool;
       this.id = id;
       this.random = new Random(seed);
+      state.random = this.random;
 
       lastSleep = System.currentTimeMillis();
     }
diff --git a/chunky/src/java/se/llbit/chunky/renderer/TileBasedRenderer.java b/chunky/src/java/se/llbit/chunky/renderer/TileBasedRenderer.java
index f87039e1a..a8b21a457 100644
--- a/chunky/src/java/se/llbit/chunky/renderer/TileBasedRenderer.java
+++ b/chunky/src/java/se/llbit/chunky/renderer/TileBasedRenderer.java
@@ -69,11 +69,8 @@ protected void submitTiles(DefaultRenderManager manager, BiConsumer<WorkerState,
 
     cachedTiles.forEach(tile ->
         manager.pool.submit(worker -> {
-          WorkerState state = new WorkerState();
-          state.ray = new Ray();
-          state.ray.setNormal(0, 0, -1);
-          state.random = worker.random;
-
+          WorkerState state = worker.state;
+          state.reset();
           IntIntMutablePair pair = new IntIntMutablePair(0, 0);
 
           for (int i = tile.x0; i < tile.x1; i++) {
diff --git a/chunky/src/java/se/llbit/chunky/renderer/WorkerState.java b/chunky/src/java/se/llbit/chunky/renderer/WorkerState.java
index 380ffa28a..42d1e2e0a 100644
--- a/chunky/src/java/se/llbit/chunky/renderer/WorkerState.java
+++ b/chunky/src/java/se/llbit/chunky/renderer/WorkerState.java
@@ -16,6 +16,7 @@
  */
 package se.llbit.chunky.renderer;
 
+import se.llbit.chunky.block.minecraft.Air;
 import se.llbit.math.Ray;
 import se.llbit.math.Vector4;
 
@@ -25,7 +26,19 @@
  * State for a render worker.
  */
 public class WorkerState {
-  public Ray ray;
+  public Ray ray = new Ray();
   public Vector4 attenuation = new Vector4();
   public Random random;
+
+  public void reset() {
+    ray.distance = 0;
+    ray.setPrevMaterial(Air.INSTANCE, 0);
+    ray.setCurrentMaterial(Air.INSTANCE, 0);
+    ray.depth = 0;
+    ray.t = 0;
+    ray.tNext = 0;
+    ray.specular = false;
+
+    attenuation.set(0, 0, 0, 0);
+  }
 }