diff --git a/js/physics.js b/js/physics.js
index fccf83e..85765b0 100644
--- a/js/physics.js
+++ b/js/physics.js
@@ -7,7 +7,10 @@ function updatePhysics() {
     fireUpdateCounter++;
     
     // Process each visible chunk
-    for (const { chunkX, chunkY } of visibleChunks) {
+    for (const { chunkX, chunkY, isVisible } of visibleChunks) {
+        // Skip physics calculations for chunks that are not visible
+        if (!isVisible) continue;
+        
         const chunk = getOrCreateChunk(chunkX, chunkY);
         
         // Process from bottom to top, right to left for correct gravity simulation
diff --git a/js/render.js b/js/render.js
index 8dd8053..09ed541 100644
--- a/js/render.js
+++ b/js/render.js
@@ -7,7 +7,10 @@ function render() {
     const visibleChunks = getVisibleChunks();
     
     // Render each visible chunk
-    for (const { chunkX, chunkY } of visibleChunks) {
+    for (const { chunkX, chunkY, isVisible } of visibleChunks) {
+        // Skip rendering for chunks that are not visible
+        if (!isVisible) continue;
+        
         const key = getChunkKey(chunkX, chunkY);
         
         if (!chunks.has(key)) continue;