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BModel Surface Lighting
_color
_distance
_focus
light
_lightmin
_lightswitch
style
BModel Appearance
_ambient
_minlighta
_lightorigin
Related Topics
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Quake2's surface-based lighting is generally more natural looking than point light entities. Unfortunately, only its brightness can be modified with Qrad3. ArghRad provides new ways to extensively customize surface light appearance. One method is through bmodel entities.
ArghRad allows brush-model entities (bmodels; like func_wall, func_door, etc.) to cast light from their surfaces. The propereties of all the bmodel's light-emitting surfaces can be modified by adding lighting keywords to the entity. This first group of options are affected by -nobmodlight.
Note: Remember that Quake2 lighting is static, and will remain where it's cast even if the BModel moves or disappears.
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_color r g b |
location: bmodel entity version: 1.00 | ||
| r g b: standard rgb color | default: none | ||
Sets the RGB color of the bmodel's surface lighting, overriding the
original texture colors. Colors similar to the originals tend to look
best.
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_distance units |
location: bmodel entity version: 2.50 | ||
| units: >= 1 | default: infinite | ||
Sets a cutoff distance at which the surface lights abruptly stop
shining. It can be used strategically to speed compiling, and reduce
"face with too many lightstyles" errors.
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_focus scale |
location: bmodel entity version: 1.00 | ||
| scale: 0-1 (fade slower), > 1 (fade faster) | default: 1 | ||
Scales how quickly the surface light fades as its cast-off angle
decreases from perpendicular to parallel. Values less than 1 fade
slower, spreading out more. Values greater than 1 fade faster,
spreading out less.
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light brightness |
location: bmodel entity version: 1.00 | ||
| brightness: any brightness | default: none | ||
Sets the brightness of the bmodel's surface lighting, overriding the
surfaces' own light values.
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_lightmin brightness |
location: bmodel entity version: 1.00 | ||
| brightness: 0-255 | default: 0 | ||
This setting affects the bmodel's appearance, not the light it casts. It
adds the specified brightness to the bmodel's light-emitting surfaces.
This can make dim surface lights appear to glow brighter.
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_lightswitch targetname |
location: bmodel entity version: 2.50 | ||
| targetname: targetname of triggered light | default: none | ||
Allows the bmodel's surface lights to be triggered. This requires an
additional, separate triggered light entity. Set the bmodel's
_lightswitch value to the targetname of that light. The bmodel's
lighting will then be set to the same trigger.
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style lightstyle |
location: bmodel entity version: 1.00 | ||
| style: standard lightstyle (0-31) | default: 0 | ||
Sets the bmodel's surface lighting to the specified lightstyle.
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ArghRad also adds several new settings for bmodels that modify its overall appearance & behavior. These options are NOT affected by -nobmodlight.
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_ambient brightness _ambient red green blue |
location: bmodel entity version: 1.00 | ||
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brightness: 0-255 red green blue: 0-255 each |
default: 0 default: 0 0 0 |
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Adds an ambient brightness level to all of the bmodel's surfaces. The
value can take one of two forms:
brightness - A single brightness value for plain white ambient
light. red green blue - Three separate brightness values for red, green, and blue ambient lighting (NOT a standard rgb color). |
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_minlighta brightness |
location: bmodel entity version: 1.00 | ||
| brightness: 0-255 | default: 0 | ||
Applies a mottled light effect of the specified brightness to all of the
bmodel's surfaces. Brightness is a standard "absolute" level (easier
than Qrad3 _minlight's 0-2 scale). Note: Do not confuse this with the global -minlighta behavior. |
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_lightorigin x y z |
location: bmodel entity version: 2.50 | ||
| x y z: any coordinate | default: none | ||
Temporarily moves the bmodel to the specified coordinate during the
lighting calculations. It can be used to light, and cast light from,
this bmodel somewhere other than where it's placed in the map. BModels
with origin brushes are moved using the origin brush's center, otherwise
the bmodel's minimum x,y,z coordinate is used.
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