Template:KV Light

Light:

Brightness (_light) <color255 + int>: The RGB color and brightness of the light. Colors must be between 0 and 255; brightness can be anything.; Note:Negative brightness will suck out the amount of lighting that the equivalent positive brightness will cast. Use sparingly; set falloff to linear instead of quadratic to make it more like an ordinary shadow and less like a black hole.

BrightnessHDR (_lightHDR) <color255 + int>: Brightness override used in HDR mode. Default is -1 -1 -1 1, which means no change.; Warning:The fourth digit must be positive. Otherwise all light will be sucked out of your map!

BrightnessScaleHDR (_lightHDRscale) <float>: A simple intensity multiplier used when compiling HDR lighting.

Warning:Using this parameter near displacements reduces performance!

Light Appearances
Literal Value	Description	Sequence
0	Normal	`m`
10	Fluorescent flicker	`mmamammmmammamamaaamammma`
2	Slow, strong pulse	`abcdefghijklmnopqrstuvwxyzyxwvutsrqponmlkjihgfedcba`
11	Slow pulse, noblack	`abcdefghijklmnopqrrqponmlkjihgfedcba`
5	Gentle pulse	`jklmnopqrstuvwxyzyxwvutsrqponmlkj`
1	Flicker A	`mmnmmommommnonmmonqnmmo`
6	Flicker B	`nmonqnmomnmomomno`
3	Candle A	`mmmmmaaaaammmmmaaaaaabcdefgabcdefg`
7	Candle B	`mmmaaaabcdefgmmmmaaaammmaamm`
8	Candle C	`mmmaaammmaaammmabcdefaaaammmmabcdefmmmaaaa`
4	Fast strobe	`mamamamamama`
9	Slow strobe	`aaaaaaaazzzzzzzz`
12 !FGD	Underwater light mutation	`mmnnmmnnnmmnn`

Custom Appearance (pattern) <string>: A string of characters, like a sequence of piano keys, that define a pattern of brightness. a is dark and z is full intensity. Applies only to lights with a targetname.

Quadratic (_quadratic_attn) <float>: These three values determine how the intensity of the emitted light falls off over distance. See Constant-Linear-Quadratic Falloff.

0 percent falloff distance (_zero_percent_distance) <string>: Distances at which brightness should have fallen to 50% and (1/256)% respectively. Overrides Linear/Constant/Quadratic parameters if non-zero.; Bug:Using this setting will sometimes not work, which may or may not be related to using the light inside of an instance. Collapsing the instance and messing with the light's falloff values seems to help.

Hard falloff (_hardfalloff) <boolean>: Causes lights to fall to exactly zero beyond the 0% distance. May cause unrealistic lighting if not used carefully.

Cast entity shadows (_castentityshadow) <boolean> (in all games since ) (also in ): Allows the light to modify the direction of nearby render-to-texture shadows so that they always point away from its origin. See also shadow_control.; Note:This keyvalue may not be available in some FGDs.

Shadow cast offset (_shadoworiginoffset) <vector> (in all games since ): A world-space offset that gets applied to the light origin when casting entity shadows. Useful for dealing with funny-looking shadows from very low lights: Just offset up the z axis. Default 0 0 0.; Note:This keyvalue may not be available in some FGDs.

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