From f0851086c0f602ccaf18a3a4b166658dbd8a5abc Mon Sep 17 00:00:00 2001
From: vcoppe <vianney.coppe@gmail.com>
Date: Thu, 8 Oct 2026 08:47:14 +0200
Subject: [PATCH] fix reactivity

---
 .../lib/components/toolbar/tools/reduce/Reduce.svelte | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/website/src/lib/components/toolbar/tools/reduce/Reduce.svelte b/website/src/lib/components/toolbar/tools/reduce/Reduce.svelte
index f6b5144d3..ce7026491 100644
--- a/website/src/lib/components/toolbar/tools/reduce/Reduce.svelte
+++ b/website/src/lib/components/toolbar/tools/reduce/Reduce.svelte
@@ -29,11 +29,14 @@
 
     let reducedLayer = new ReducedLayer();
 
+    // read again only when the selection or the files change, not with the tolerance
+    let distances = $derived.by(() => {
+        void $statistics;
+        return engine.reductionDistances();
+    });
+
     $effect(() => {
-        // recomputed when the selection or the files change
-        const stats = $statistics;
-        const distances = engine.reductionDistances();
-        reducedLayer.update(stats, distances, $tolerance);
+        reducedLayer.update($statistics, distances, $tolerance);
     });
 
     $effect(() => {