From 2343f05b1886562c073cdc318d2f411fe1cc61c8 Mon Sep 17 00:00:00 2001 From: seton Date: Mon, 22 Jun 2026 18:53:18 -0400 Subject: [PATCH] README: note 3-12 FPS improvement from icon culling --- README.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index f2f2dd6..fe404f0 100644 --- a/README.md +++ b/README.md @@ -68,7 +68,9 @@ Rotate the map manually with the rotation control, or lock it to your player cam ### Icon Controls -When zoomed out past a configurable threshold (default 40%), car icons are hidden and only locomotive icons remain. Locomotives scale up automatically so they stay easy to spot. A separate option hides MU trailing units, keeping just the lead locomotive per consist. A blinking red EOTD dot marks the rear of each consist, giving you a quick sense of train length without cluttering the map with car icons. +Each car icon on the map is a live Canvas element. On a large session with many cars visible, the rendering cost adds up - testing showed a **3-12 FPS improvement** when zoomed out over a busy portion of the map with culling enabled. + +When zoomed out past a configurable threshold (default 40%), car icons fade out and only locomotive icons remain. Locomotives scale up automatically so they stay easy to spot. A separate option hides MU trailing units, keeping just the lead locomotive per consist. A blinking red EOTD dot marks the rear of each consist so you can still gauge train length at a glance. All of these options are available from the gear menu Icons submenu on the map toolbar, or from the S³ UMM settings page.