VorteX: /* World lights */

2012-10-07T11:15:45Z

‎World lights

VorteX at 11:15, 7 October 2012

2012-10-07T11:15:29Z

VorteX at 11:39, 8 August 2012

2012-08-08T11:39:00Z

VorteX: Created page with "{{navigation title|Special effects}} Engine supports two ways to get lights on the map. ==World lights== Worlds lights are loaded from external .rtlights file supplied with a..."

2012-08-05T21:06:29Z

Created page with "{{navigation title|Special effects}} Engine supports two ways to get lights on the map. ==World lights== Worlds lights are loaded from external .rtlights file supplied with a..."

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{{navigation title|Special effects}}
Engine supports two ways to get lights on the map.

==World lights==
Worlds lights are loaded from external .rtlights file supplied with a map (foo.bsp will try to load foo.rtlights). If there are not .rtlights file, engine tries to load lights from a map "light" entities, which often is grude and terrible slow (as "lights" are maked for map compiler LIGHT stage raytracer, not for reatime rendering). So producing a good .rtlights folr is very first step in a process of map creation.

World lights are static, meaning they canot be moved, rotated, altered during a game.

{{tip|Blood Omnicide is using world lights to place lights for a Q3map2 LIGHT phase. So unlike Quake, which should have both "light" entities and .rtlights, Blood Omnicide .rtlights containins all map static lights}}

Each world light can have this parameters:
* origin : position
* angles : rotation
* color : RGB light color
* radius : radius of light in game units
* corona : corona intensity (0 to disable)
* coronasize : size of corona (this is multiplier to light radius)
* style : lights style number (see lightstyles above)
* shadows: whether to cast shadows from light
* cubemap : a path to [[cubemap]] filter texture
* ambient : ambient light intensity (ignores shading, makes lighting to be more 'flat')
* diffuse : shading light intensity (default is 1)
* specular : specular intensity (default is 1)
* normalmode : if this flag is set, light will be draws if cvar r_shadow_realtime_world is 0
* realtimemode : if this flag is set, light will be draws if cvar r_shadow_realtime_world is 1

Blood Omnicide tips:
{{tip|A combination of <nowiki>normalmode = 0, realtimemode = 0</nowiki> to mark lights which are only appear on lightmap}}
{{tip|Light style 1 will make a dynamic lights that will not appear on lightmap}}
{{tip|Cubemap-filtered lights dont appear on lightmap}}

Console variables:
{{cvar|r_shadow_realtime_world|Enables rendering of full world lighting (whether loaded from the map, or a .rtlights file, or a .ent file, or a .lights file produced by hlight)}}
{{cvar|r_shadow_realtime_world_lightmaps|Brightness to render lightmaps when using full world lighting}}
{{cvar|r_shadow_realtime_world_shadows|Enables rendering of shadows from world lights}}
{{cvar|r_shadow_realtime_world_compile|Enables compilation of world lights for higher performance rendering (shadow volumes only)}}
{{cvar|r_shadow_realtime_world_compileportalculling|Enables portal-based culling optimization during compilation (overrides compilesvbsp)}}
{{cvar|r_shadow_realtime_world_compileshadow|Enables compilation of shadows from world lights for higher performance rendering (shadow volumes only)}}
{{cvar|r_shadow_realtime_world_compilesvbsp|Enables [[svbsp]] optimization during compilation (slower than compileportalculling but more exact)}}
{{tip|In Blood Omnicide, this console varisables are hardcoded since its using a combination of full realtime lightning and lightmaps. Tweak this settings only for debugging purposes or if you want to break something.}}

== Dynamic lights ==
Dynamic lights are cast from entities. This could be both server-side entities such as rockets or client-side entities such as explosions.

{{cvar|r_shadow_realtime_dlight|Enables rendering of dynamic lights such as explosions and rocket light}}
{{cvar|r_shadow_realtime_dlight_portalculling|Enables portal optimization on dynamic lights}}
{{cvar|r_shadow_realtime_dlight_shadows|Enables rendering of shadows from dynamic lights}}
{{cvar|r_shadow_realtime_dlight_svbspculling|Enables svbsp optimization on dynamic lights}}

{{navigation footer|Tweaking}}

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 {{navigation title|Special effects}}
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 ==Static lightsources==

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 * realtimemode : if this flag is set, light will be draws if cvar r_shadow_realtime_world is 1
 {{tip|A combination of <nowiki>normalmode = 0, realtimemode = 0</nowiki> to mark lights which are only appear on lightmap}}
 {{tip|Light style 1 will make a dynamic lights that will not appear on lightmap}}

Darkplaces lighting/Light sources - Revision history

VorteX: /* World lights */

VorteX at 11:15, 7 October 2012

VorteX at 11:39, 8 August 2012

VorteX: Created page with "{{navigation title|Special effects}} Engine supports two ways to get lights on the map. ==World lights== Worlds lights are loaded from external .rtlights file supplied with a..."