# Talk:Partial invisibility

## From DoomWiki.org

Can Revenants' tracking rockets still target a player with a blur sphere, even if the Revenant fires the rocket in the wrong direction?

- Yes. The blur artifact only confuses the
*monsters*to make them inaccurate. It has no effect on Revenant rockets. o**THE**r**ONE**_{(Contribs)}23:53, 9 March 2007 (UTC)

## Exact amount of accuracy reduction[edit]

p_enemy.c, A_FaceTarget

if (actor->target->flags & MF_SHADOW) actor->angle += (P_Random()-P_Random())<<21;

p_mobj.c, P_SpawnMissile

// fuzzy player if (dest->flags & MF_SHADOW) an += (P_Random()-P_Random())<<20;

Although I'm not very into hex calculations, my estimates are ±45° (0x20000000) for the first case (that'll be hitscan, I suppose), and ±22.5° (0x10000000) for the second (projectile attacks). Are my values correct? It might be useful to include them here or into the fuzz effect article. Also, I wonder what actual numbers will come out after the idiosyncrasies of Doom's RNG come into play.

On a side note, I haven't managed to find any exceptions for the spectre's fuzz. It appears that they are equally as hard to hit as fuzzy players (*to monsters*, not the player, of course). If so, the Spectre article needs a correction. --Unmaker 19:18, 1 September 2012 (UTC)

- Can't argue with any of that (FWIW). The RNG module tells us:
- Angle varies between -43.76° and 43.94°, or half that for projectiles
- Mean of 0° and standard deviation of 17.84° (i.e. small shifts are uncommon in fact), or half that for projectiles
- Angle is never zero (because no two consecutive return values are equal)

- I'll describe this in the article if I can wring a passable histogram out of this POS spreadsheet application. :P Ryan W (talk) 01:51, 3 August 2014 (UTC)

## Display filter[edit]

*The player's sprite (as seen by other players in multiplayer mode) will be given a filter similar to that of the spectre*

Similar? How similar? Isn't it the same? --Kyano 21:24, 10 April 2014 (UTC)

- It is exactly the same. It also isn't a "filter". --Quasar 02:11, 11 April 2014 (UTC)