diff --git a/test-renderers/expected/renderers/tone_mapping-Clamp-0.5-wgpu.png b/test-renderers/expected/renderers/tone_mapping-Clamp-0.5-wgpu.png
deleted file mode 100644
index 805f4881b..000000000
Binary files a/test-renderers/expected/renderers/tone_mapping-Clamp-0.5-wgpu.png and /dev/null differ
diff --git a/test-renderers/expected/renderers/tone_mapping-Reinhard-0.5-wgpu.png b/test-renderers/expected/renderers/tone_mapping-Reinhard-0.5-wgpu.png
index 74a3ff329..04bb9e468 100644
Binary files a/test-renderers/expected/renderers/tone_mapping-Reinhard-0.5-wgpu.png and b/test-renderers/expected/renderers/tone_mapping-Reinhard-0.5-wgpu.png differ
diff --git a/test-renderers/expected/renderers/tone_mapping-Reinhard-2.0-wgpu.png b/test-renderers/expected/renderers/tone_mapping-Reinhard-2.0-wgpu.png
index 0105abded..966d2ea7b 100644
Binary files a/test-renderers/expected/renderers/tone_mapping-Reinhard-2.0-wgpu.png and b/test-renderers/expected/renderers/tone_mapping-Reinhard-2.0-wgpu.png differ
diff --git a/test-renderers/src/test_cases.rs b/test-renderers/src/test_cases.rs
index 641f44b5d..bd94bc1b7 100644
--- a/test-renderers/src/test_cases.rs
+++ b/test-renderers/src/test_cases.rs
@@ -937,17 +937,11 @@ async fn tone_mapping(mut context: RenderTestContext, (tmo, exposure): (ToneMapp
         context.universe(),
     );
 
-    // TODO: Ideally there would be at most 1 difference but there are large-enough-to-be-visible
-    // ones for some reason. These appeared, not when working on the tone mapping algorithm, but
-    // when changing PackedLight’s rounding behavior.
-    // Also, there is a notable ray/wgpu difference concentrated in the middle range of Reinhard.
+    // TODO: There is a notable ray/wgpu difference concentrated in the middle range of Reinhard.
     // So, there are probably bugs lurking here.
+    // (The thresholds here are *not* for those difference but other pixel differences.)
     context
-        .render_comparison_test(
-            Threshold::new([(20, 200), (10, 500), (3, 2000), (2, 20000)]),
-            scene,
-            Overlays::NONE,
-        )
+        .render_comparison_test(Threshold::new([(10, 100), (3, 500)]), scene, Overlays::NONE)
         .await;
 }