From 8a788816b511cedd8d62b3dbd0f4fef74223d3d0 Mon Sep 17 00:00:00 2001
From: Joakim Kilby <jockekilby@gmail.com>
Date: Wed, 4 Oct 2023 14:44:50 +0200
Subject: [PATCH] allow cutoff to be disabled by setting it to 0

---
 .../src/tileprovider/planetarytrailtileprovider.cpp   | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/modules/globebrowsing/src/tileprovider/planetarytrailtileprovider.cpp b/modules/globebrowsing/src/tileprovider/planetarytrailtileprovider.cpp
index 6ccb18855d..f31422e26a 100644
--- a/modules/globebrowsing/src/tileprovider/planetarytrailtileprovider.cpp
+++ b/modules/globebrowsing/src/tileprovider/planetarytrailtileprovider.cpp
@@ -548,10 +548,13 @@ void PlanetaryTrailTileProvider::update() {
                 if (_start + feature._time > now) {
                     break;
                 }
-                double opacity = 1.0 - glm::smoothstep(
-                    static_cast<double>(_start + feature._time),
-                    static_cast<double>(_start + feature._time + _cutoff),
-                    now);
+                double opacity = 1.0;
+                if (_cutoff > 0) {
+                    opacity -= glm::smoothstep(
+                        static_cast<double>(_start + feature._time),
+                        static_cast<double>(_start + feature._time + _cutoff),
+                        now);
+                }
                 points.push_back({ feature._lat, feature._lon, opacity });
                 last = feature;
                 index++;