From 8044ad88e379df7a076807f27844763068edf1b1 Mon Sep 17 00:00:00 2001
From: LucaP <luca.pislaru@protonmail.com>
Date: Sat, 10 Oct 2026 20:50:47 +0300
Subject: [PATCH] fix(scene): cut the opening crane to the chase framing on any
 interaction

---
 src/scene/world/environment.ts | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/src/scene/world/environment.ts b/src/scene/world/environment.ts
index 64bd198..a7b5304 100644
--- a/src/scene/world/environment.ts
+++ b/src/scene/world/environment.ts
@@ -187,7 +187,6 @@ export async function createProceduralSceneGeneration(
   // Opening shot: a crane down from the sun to the chase position. It plays
   // once, only when the visit starts at the top, and a scroll hurries it.
   let introProgress: number | null = null;
-  let introHurried = false;
   let introFrames = 0;
   let introSlowFrames = 0;
 
@@ -521,20 +520,21 @@ export async function createProceduralSceneGeneration(
         if (introProgress === 0) renderer.compile(scene, camera);
       }
       if (introProgress < 1) {
-        // The shot belongs to a visitor who waits at the top. Once they scroll
-        // or navigate it lands within INTRO_LANDING_SECONDS of wall time: a sign
-        // latches its placement after its 300 ms anticipation, so the chase
-        // framing must be back before then.
-        if (snapshot.scrollY > 40 || snapshot.activeSectionId !== 'start') introHurried = true;
-        // A crane that stutters is worse than none: on a device that cannot
-        // hold the shot smoothly, land it straight away.
-        // The first frames carry shader compilation and a lone hitch (a late
-        // texture upload) is forgiven; three slow frames end the shot.
+        // The shot belongs to a visitor who waits at the top. Scrolling,
+        // navigating or a sign on its way cuts straight to the chase framing:
+        // signs latch their placement against that camera.
+        if (
+          snapshot.scrollY > 40
+          || snapshot.activeSectionId !== 'start'
+          || snapshot.sign !== null
+        ) introProgress = 1;
+        // A crane that stutters is worse than none. The first frames carry
+        // shader compilation and a lone hitch is forgiven; three slow frames
+        // end the shot.
         introFrames += 1;
         if (introFrames > 3 && wallSeconds > 0.1) introSlowFrames += 1;
-        if (introSlowFrames >= 3) introHurried = true;
-        const step = introHurried ? Math.min(0.5, wallSeconds) / INTRO_LANDING_SECONDS : deltaSeconds / INTRO_SECONDS;
-        introProgress = Math.min(1, introProgress + step);
+        if (introSlowFrames >= 3) introProgress = 1;
+        introProgress = Math.min(1, introProgress + deltaSeconds / INTRO_SECONDS);
       }
       const crane = easeInOutCubic(
         THREE.MathUtils.clamp((introProgress - 0.06) / 0.94, 0, 1),
@@ -619,7 +619,6 @@ export async function createProceduralSceneGeneration(
   };
 }
 
-const INTRO_LANDING_SECONDS = 0.18;
 const INTRO_SECONDS = 4.2;
 
 function easeInOutCubic(t: number): number {