mobile support tweaks

tests/web_probe.gd

@@ -0,0 +1,32 @@
+extends Node3D
+## Minimal skinned-mesh probe for the web/mobile invisibility repro. Boots straight to a
+## single bull (Skeleton3D-skinned) framed by a camera + light, no menus, no autoload deps.
+## Set as main_scene, exported to web, and screenshotted in a browser to test whether the
+## skinned mesh draws under a given engine build.
+
+func _ready() -> void:
+	var bull := (load("res://Assets/bull.fbx") as PackedScene).instantiate() as Node3D
+	bull.scale = Vector3(100.0, 100.0, 100.0)
+	add_child(bull)
+
+	var key := DirectionalLight3D.new()
+	key.rotation_degrees = Vector3(-50.0, -40.0, 0.0)
+	key.light_energy = 1.5
+	add_child(key)
+
+	var we := WorldEnvironment.new()
+	var env := Environment.new()
+	env.background_mode = Environment.BG_COLOR
+	env.background_color = Color(0.15, 0.35, 0.65)
+	env.ambient_light_source = Environment.AMBIENT_SOURCE_COLOR
+	env.ambient_light_color = Color(0.6, 0.6, 0.6)
+	env.ambient_light_energy = 1.0
+	we.environment = env
+	add_child(we)
+
+	var cam := Camera3D.new()
+	cam.position = Vector3(0.0, 2.0, 6.0)
+	cam.fov = 55.0
+	add_child(cam)
+	cam.look_at(Vector3(0.0, 1.2, 0.0), Vector3.UP)
+	cam.current = true