Linedef type 491

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Linedef type 491, PolyObject – Set Translucency, is a type of linedef executor which, when triggered, adjusts the translucency of a specified PolyObject.


This linedef should be given a tag corresponding to the ID of the wanted PolyObject. The translucency is controlled by the floor height of the control sector. There are only 11 possible levels of translucency that can be given, as shown by the table below:

Floor height Translucency level
0–99, or below 0 0% translucent (completely opaque)
100–199 10% translucent
200–299 20% translucent
300–399 30% translucent
400–499 40% translucent
500–599 50% translucent
600–699 60% translucent
700–799 70% translucent
800–899 80% translucent
900–999 90% translucent
1000 and above 100% translucent (completely invisible)


Example WAD: ex_ld491_polyobject_settranslucency.wad

  Linedef typesLinedef executors [view]

ContinuousEach TimeOnce • Ring Count (ContinuousOnce) • Character Ability (ContinuousEach TimeOnce) • Race Only – Once • CTF Red Team (ContinuousEach Time) • CTF Blue Team (ContinuousEach Time) • No More Enemies – Once • Number of Pushables (ContinuousOnce) • Condition Set Trigger (ContinuousOnce) • Unlockable (ContinuousOnce) • Trigger After X Calls (ContinuousEach Time) • Level Load

Set Tagged Sector's Floor Height/TextureSet Tagged Sector's Ceiling Height/TextureSet Tagged Sector's Light LevelChange Tagged Sectors' TagChange Front Sector's TagStart Adjustable Flickering LightStart Adjustable Pulsating LightStart Adjustable Blinking Light (unsynchronized)Start Adjustable Blinking Light (synchronized)Fade Light LevelStop Lighting EffectChange Plane Scroller Direction
Plane movement:
Move Tagged Sector's FloorMove Tagged Sector's CeilingMove Floor According to Front Texture OffsetsMove Ceiling According to Front Texture OffsetsStop Plane MovementStart Platform MovementCrush Ceiling OnceCrush Floor OnceCrush Ceiling and Floor Once
TeleporterChange Object StateStop ObjectAward ScoreEnable/Disable 2D ModeEnable/Disable Gravity FlipAward Power-UpDisable Player ControlChange Object SizeChange Object Type State
Change MusicPlay Sound EffectRun ScriptSwitch to Cut-Away ViewChange SkyChange WeatherShatter FOFChange Tagged Linedef's TexturesStart Metal Sonic RaceCondition Set TriggerCall Lua FunctionEarthquakeMake FOF Disappear/ReappearExecute Linedef Executor (from Tag)Execute Linedef Executor (Random Range)
Door SlideDoor SwingMoveMove, OverrideRotate RightRotate Right, OverrideRotate LeftRotate Left, OverrideMove by WaypointsTurn Invisible, IntangibleTurn Visible, TangibleSet Translucency