diff --git a/tools/overhaul-selfgate/route-s5-469-lighting-transition.txt b/tools/overhaul-selfgate/route-s5-469-lighting-transition.txt
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+# S5 issue #469: one fixed-pose authored-light/shadow-gate transition.
+wait world-ready 90000
+wait world-visible 30000
+
+command /teleloc 0x09040008 11.4 188.6 87.705
+wait materialized 1 90000
+wait world-visible 30000
+
+# Establish authored noon, framebuffer, and camera before acceptance.
+input press AcdreamCycleTimeOfDay
+input press AcdreamCycleTimeOfDay
+input press AcdreamCycleTimeOfDay
+resize 1024 768
+wait framebuffer 1024 768 30000
+renderpack select high
+wait render-pack high 90000
+input down MovementTurnRight
+sleep 3000
+input up MovementTurnRight
+sleep 3000
+
+# Keep pose, camera, and framebuffer fixed across the gate transition.
+renderpack disable
+wait render-pack retail 90000
+sleep 3000
+screenshot s5-469-noon-retail-before 15000
+
+renderpack reenable
+wait render-pack high 90000
+sleep 3000
+screenshot s5-469-noon-high 15000
+
+renderpack disable
+wait render-pack retail 90000
+sleep 3000
+screenshot s5-469-noon-retail-after 15000
+
+renderpack reenable
+wait render-pack high 90000
+sleep 3000
+screenshot s5-469-noon-high-repeat 15000
+
+# Preserve the same pose/camera/framebuffer while the authored light advances.
+input press AcdreamCycleTimeOfDay
+sleep 3000
+screenshot s5-469-dusk-high 15000
+
+checkpoint s5_469_lighting_transition
+close-client