View source for Template:KV Light

<onlyinclude>{{KV|Appearance ([[lightstyle]])|intn=style|integer choices|Various lightstyle presets. Cannot be used on named lights.
:{{warning|Using this parameter near displacements reduces performance!}}
{{light appearances}}}}
{{KV|Custom Appearance|intn=pattern|string|A string of english letters, like a sequence of piano keys, that define a pattern of brightness. '''a''' is 0%, '''m''' is 100%, and '''z''' is 200%. Requires light to have a [[targetname]].}}
{{minititle|Internal keyvalues used only by [[VRAD]]}}
{{KV|Brightness|intn=_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 would cast. Use sparingly; set falloff to linear instead of quadratic to make it more like an ordinary shadow and less like a black hole. }}
}}
{{KV|BrightnessHDR|intn=_lightHDR|color255 + int|RGB color and brightness override used in [[HDR]] mode. Default is <code>-1 -1 -1 1</code>, which means no change.
:{{warning|The fourth digit must be positive. Otherwise all light will be sucked out of your map!}}}}
{{KV|BrightnessScaleHDR|intn=_lightHDRscale|float|A simple intensity multiplier used when compiling HDR lighting.}}
{{KV|Constant|intn=_constant_attn|float}}
{{KV|Linear|intn=_linear_attn|float}}
{{KV|Quadratic|intn=_quadratic_attn|float|These three values determine how the intensity of the emitted light falls off over distance. See [[Constant-Linear-Quadratic Falloff]].}}
{{KV|50 percent falloff distance|intn=_fifty_percent_distance)|string}}
{{KV|0 percent falloff distance|intn=_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.}}}}
{{KV|Hard falloff|intn=_hardfalloff|bool|Causes lights to fall to exactly zero beyond the 0% distance. May cause unrealistic lighting if not used carefully.}}
{{KV|Cast entity shadows|intn=_castentityshadow|bool|Allows the light to modify the direction of nearby render-to-texture shadows so that they always point away from its origin. See also {{ent|shadow_control}}.
: {{Note|This keyvalue may not be available in some [[FGD]]s.}}|since=L4D|also={{GMOD}}}}
{{KV|Shadow cast offset|intn=_shadoworiginoffset|vector|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 <code>0 0 0</code>.
: {{Note|This keyvalue may not be available in some [[FGD]]s.}}|since=L4D}}</onlyinclude>

[[Category:Keyvalue Templates|Light]]