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Co-authored-by: Maik Marschner <[email protected]>

chunky/src/java/se/llbit/chunky/renderer/scene/Scene.java

@@ -487,7 +487,7 @@ public synchronized void copyState(Scene other, boolean copyChunks) {
       frontBuffer = other.frontBuffer;
       samples = other.samples;
     }
-    alphaBuffer.reset();
+    alphaBuffer.reset(); // TODO could we copy it without resetting if the export format didn't change?
 
     fullWidth = other.fullWidth;
     fullHeight = other.fullHeight;