Bloom lighting effects

Bloom lighting is used to give lighting a more realistic look, giving shiny halos of light to particularly bright objects, as is seen with most camera lenses. The effect was mentioned developer blog for RuneTek 5 as one of the additional graphical effects that will be possible in HD mode with the new engine.

Current uses
Bloom lighting was introduced as a graphics option on 28 November 2011. Here are a few examples of areas and objects where bloom lighting is currently in use:
 * Emotes - Breathe Fire, Firemaking cape, Attack cape, Magic cape
 * Items - The orbs on lava battlestaves, some Dungeoneering keys
 * Magic - Fire spells, Home Teleport and standard spellbook teleport spells (and anything that uses the same animation), Ice Spells, Earth spells
 * Monsters - Aberrant spectres, Tormented demons, Rockslugs and Pyrefiends.
 * Players and NPCs - Players who are viewing the world map and Light creatures, the flowers on the chests and hats of some Tool leprechauns
 * Portals - Castle wars, Player-owned House entrance portals and Portal Chambers, Pest Control, Kuradal's Dungeon energy barriers
 * Scenery - Fires and standing torches, Lava, Zanaris, the four lamps in Gypsy Aris's tent, the falling particles of Magic trees, Dungeoneering furnaces, "overhead" lighting in the starting room on furnished floors
 * Summoning - Calling a familiar, Summoning obelisks, the Bunyip and Unicorn stallion's healing effects, Lava Titans, fire titans, pyrelords.



Simulated bloom effects
There are instances where particles are used to simulate bloom effect around specific points of light. The halos of light found in these are NOT bloom effect. They are particles, and they register in the particle count output, which is accessible through the developer console. Here are a few examples of areas and objects where bloom lighting is simulated using participles:
 * The 10th anniversary cake.
 * Draynor Village's lights.
 * The spirits in the 2011 Easter event.
 * The pumpkins and candles in the 2010 Halloween event.
 * The trees and candles in the 2010 Christmas event.

Trivia

 * Zanaris was originally meant to be updated with bloom effect with Fairy Tale Part III on 13 May 2010, but technical difficulties had postponed the implementation of bloom lighting.
 * Currently, the bloom lighting effect disables anti-aliasing in DirectX mode.