Difference between revisions of "Light Sources"

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===Light===
 
===Light===
−
This is how much light is provided within it's radius. Typically this is +100% though some light sources only glow softly. If an M is listed, this means this light also penetrates magical darkness.
+
This is how much light is provided within it's radius. Typically this is +100% though some light sources only glow softly. If an M is listed, this means this light also penetrates magical darkness - almost always, this is a Magical Light.
  
 
Only the most powerful Light Source is used - if 5 people carry torches, this does not mean that Light at x5 distance is now +100%.
 
Only the most powerful Light Source is used - if 5 people carry torches, this does not mean that Light at x5 distance is now +100%.
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If a Light Source specifically states it works differently, use the rules it provides - for example, as above, a smaller campfire needs less fuel but burning paper is quickly incinerated.
 
If a Light Source specifically states it works differently, use the rules it provides - for example, as above, a smaller campfire needs less fuel but burning paper is quickly incinerated.
 +
 +
As defined in [[Fire]], a Unit of Fuel is 6 pounds of Hard Wood, 1 pound of Coal or 1 pint of Oil.
  
 
===Examples===
 
===Examples===
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| 4 Units of Fuel per Hour
 
| 4 Units of Fuel per Hour
 
|-
 
|-
−
| Burning Inn
+
| Burning Town House
 
| Wood
 
| Wood
 
| Huge
 
| Huge
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| 8 Units of Fuel per Hour
 
| 8 Units of Fuel per Hour
 
|-
 
|-
 +
| Burning Inn
 +
| Wood
 +
| Gigantic
 +
| +100%
 +
| 150 feet
 +
| 16 Units of Fuel per Hour
 +
|-
 
| Burning Fort
 
| Burning Fort
 +
| Wood
 
| Colossal
 
| Colossal
−
| Huge
 
 
| +100%
 
| +100%
−
| 150 feet
+
| 180 feet
−
| 16 Units of Fuel per Hour
+
| 32 Units of Fuel per Hour
−
|-
+
|-  
 
| Candle
 
| Candle
 
| Oil (single)
 
| Oil (single)
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| 15 feet
 
| 15 feet
 
| 1 Unit of Fuel per 3 Hours
 
| 1 Unit of Fuel per 3 Hours
−
 
+
|-
 
| Lantern
 
| Lantern
 
| Oil
 
| Oil
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| 1 Unit of Fuel per 2 Hours
 
| 1 Unit of Fuel per 2 Hours
 
|-
 
|-
−
|  
+
| Street Lighting
−
 
+
| Oil
−
 
+
| Medium
 +
| +100%
 +
| 60 feet
 +
| 1 Unit of Fuel per Hour
 +
|-
 +
| Burning Oil Pool
 +
| Oil
 +
| Large
 +
| +100%
 +
| 90 feet
 +
| 2 Units of Fuel per Hour
 +
|-
 +
| Watch Tower
 +
| Oil
 +
| Huge
 +
| +100%
 +
| 120 feet
 +
| 4 units of Fuel per Hour
 +
|-
 +
| Light House (non-directional)
 +
| Oil
 +
| Gigantic
 +
| +100%
 +
| 150 feet
 +
| 8 units of Fuel per Hour
 +
|-
 +
| Burning Light House
 +
| Oil
 +
| Colossal
 +
| +100%
 +
| 180 feet
 +
| 16 units of Fuel per Hour
 +
|-
 +
| Faerie Fire
 +
| Magic
 +
| Varies
 +
| +100% M
 +
| Only Illuminates Target
 +
| As per Spell
 +
|-
 +
| Magical Weapon
 +
| Magical
 +
| Varies
 +
| +40% M
 +
| 5 feet at Medium
 +
| At Will, Reaction to Change
 +
|-
 +
| Dancing Light (Small)
 +
| Magical
 +
| Small
 +
| +100% M
 +
| 30 feet
 +
| As per Spell
 +
|-
 +
| Dancing Light (Medium)
 +
| Magical
 +
| Medium
 +
| +100% M
 +
| 40 feet
 +
| As per Spell
 +
|-
 +
| Light Spell
 +
| Magical
 +
| Small
 +
| +100% M
 +
| 20 feet
 +
| As per Spell
 +
|-
 +
| Continual Light Spell
 +
| Magical
 +
| Medium
 +
| +100% M
 +
| 60 feet
 +
| As per Spell
 
|-
 
|-
 
| Burning Character
 
| Burning Character
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|}
 
|}
  
 +
==Directional Lighting==
 +
If a Light Source is channeled correctly, it provides light in a cone instead of in a full radius. The radius of the light is replaced with a Range of light. The narrower the cone, the more concentrated the light and so the further it goes.
  
 +
The Width of the Cone is equal at 1/2 the Radius of the Light Source if the Range of the Light Source is equal to double the Radius of the Light Source. For every multiple of Radius you increase the Range by, half the Radius. If you wish to only increase Range by 1/2 Radius, the Cone of Light's Width is equal to 3/4 Radius.
  
−
 
+
{| class="wikitable"
−
|'''Example'''
+
!colspan="11"|Directional Lighting
−
|'''Type'''
+
|-
−
|'''Size'''
+
|'''Range of Light'''
−
|'''Light'''
+
|'''Width of Cone'''
−
|'''Radius'''
+
|-
−
|'''Duration'''
+
| +1/2 Radius
 +
| 3/4 Radius
 +
|-
 +
| x2 Radius
 +
| 1/2 Radius
 +
|-
 +
| x3 Radius
 +
| 1/4 Radius
 +
|-
 +
| x4 Radius
 +
| 1/8 Radius
 +
|-
 +
| x5
 +
| 1/16
 
|-
 
|-
−
As defined in [[Fire]], a Unit of Fuel is 6 pounds of Hard Wood, 1 pound of Coal or 1 pint of Oil.
+
|}
−
 
 
−
 
 
−
Match = Diminuitive
 
−
Candle = Tiny
 
−
Torch = Small
 
−
Lantern = Small
 
−
Campfire = Medium
 
−
Bonfire = Large
 
−
 
 
−
 
 
−
A character can improve their visibility by carrying a light source. The amount of visibility provided by a light source depends on its power. It has an effect for a given radius and then declines by one step. Thus, a candle improves visibility by two levels up to five feet, by one level from five to ten feet and not at all beyond this.
 
−
 
 
−
Light Source Improvement Radius Duration
 
−
Match 1 level 1 foot 1 minute
 
−
Faerie Fire 1 level 5 feet Variable
 
−
Magical Weapon 2 levels 5 feet At will
 
−
Candle 2 levels 5 feet 10 minutes per inch
 
−
Burning Enemy 3 levels 10 feet Variable
 
−
Torch 4 levels 15 feet 30 minutes
 
−
Lantern 4 levels 30 feet 2 hours per pint of oil
 
−
Dancing Light (Small) 4 levels 30 feet 2 rounds per level
 
−
Dancing Light (Medium) 4 levels 40 feet 2 rounds per level
 
−
Campfire 4 levels 40 feet 1 hour per armload of fuel
 
−
Bonfire 4 levels 60 feet ½ hour per armload of fuel
 
−
Burning Building 4 levels 100 feet Variable
 
−
Light Spell 4 levels 20 feet Variable
 
−
Continual Light Spell 4 levels 60 feet Indefinite
 
  
−
Magical Darkness cannot be penetrated by natural light – only Magical Light can deal with it. Small light sources, such as from Faerie Fire or Magical Weapons, increase the effective visibility whilst full lights such as Light or Continual Light entirely counter the effects.
+
For example, a Lantern has a Light Radius of 30 feet. A Bullseye Lantern narrows that into a cone that is 15 feet wide at the end and doubles the effective range to 60 feet. If the cone of light were further narrowed, to about 2 feet, the light's effective Range would be equal to 150 feet feet.

Latest revision as of 04:40, 6 December 2016

Light sources consist of anything that provides light sources barring the sun, moon, stars and other ambient lighting effects.

Light Sources

A Light Source increases the effective Light level.

Example

This is the source of the light - a candle, a torch, a fire and so forth.

Type

This is usually what fuels the Light - wood, coal, oil or magic. Torches, campfires and bonfires usually burn wood and lamps and lanterns usually burn oil. Candles, using wax, are technically oil fires. If it is a single item fire (such a match or a candle) it will state as much.

Size

This is how big the Light Source is. This is relative to a medium character, ultimately -larger or smaller characters may presumably carry a torch or candle of a different size and a giant would have a campfire far larger than the campfire of a goblin.

Light

This is how much light is provided within it's radius. Typically this is +100% though some light sources only glow softly. If an M is listed, this means this light also penetrates magical darkness - almost always, this is a Magical Light.

Only the most powerful Light Source is used - if 5 people carry torches, this does not mean that Light at x5 distance is now +100%.

Radius

This is how far the light shines at it's base level of light. Every additional radius distant from the Light Source decreases the light provided by 20%. For example, a Torch provides 100% Light to 15 feet. For the next 15 feet, up to 30 feet, Light is 80%. After Radius x 5, no additional Light is provided.

Light Radius
Radius Example (Torch, 15ft) Light Modifier
x1 Up to 15 feet +100%
x2 16 to 30 feet +80%
x3 31 to 45 feet +60%
x4 46 to 60 feet +40%
x5 61 to 75 feet +20%
x6+ 76 feet or More +0%

This radius is taken from the character with the Light Source. Thus, anything that can perceive that light, can gain the benefits of it within that radius. For example, a character within 15 feet of a character holding a torch acts as though Light were 100% and suffers no penalties on their attacks. Meanwhile, an archer intending to attack that character is able to perceive them in the distance and attack without penalties from low Light.

For every Size Category a Light Source increases above Medium, increase it's radius by 30 feet. For every Size Category it decreases below Medium, half its radius. For example, a Torch (small wood fire) has a radius of 15 whilst a campfire (medium wood fire) has a radius of 30 and a bonfire (large wood fire) has a radius of 60. If a Light Source specifically states it works differently, use the rules it provides.

Duration

This is how long this light source lasts, typically.

For every Size Category a Light Source increases above Medium, double the amount of fuel needed per hour. Similarly, for every Size Category a Light Source decreases below Medium, increase the time it burns for by 1 hour. This does not, however, effect larger single item fires, such as matches, candles, or paper - these consume larger objects to produce a bigger flame.

If a Light Source specifically states it works differently, use the rules it provides - for example, as above, a smaller campfire needs less fuel but burning paper is quickly incinerated.

As defined in Fire, a Unit of Fuel is 6 pounds of Hard Wood, 1 pound of Coal or 1 pint of Oil.

Examples

Light Radius
Example Type Size Light Radius Duration
Wood Match Wood (single) Diminuitive +100% 3.25 feet 1 minute per match
Burning Paper Wood (single) Tiny +100% 7.5 feet 30 seconds per sheet
Torch Wood (single) Small +100% 15 feet 30 minutes
Portable Cooking Stove Wood Small +100% 15 feet 2 hours per Unit of Fuel
Campfire Wood Medium +100% 30 feet 1 Unit of Fuel per Hour
Bonfire Wood Large +100% 60 feet 2 Units of Fuel per Hour
Burning Cottage Wood Huge +100% 90 feet 4 Units of Fuel per Hour
Burning Town House Wood Huge +100% 120 feet 8 Units of Fuel per Hour
Burning Inn Wood Gigantic +100% 150 feet 16 Units of Fuel per Hour
Burning Fort Wood Colossal +100% 180 feet 32 Units of Fuel per Hour
Candle Oil (single) Tiny +100% 5 feet 10 minutes per inch
Lamp Oil Tiny +100% 15 feet 1 Unit of Fuel per 3 Hours
Lantern Oil Small +100% 30 feet 1 Unit of Fuel per 2 Hours
Street Lighting Oil Medium +100% 60 feet 1 Unit of Fuel per Hour
Burning Oil Pool Oil Large +100% 90 feet 2 Units of Fuel per Hour
Watch Tower Oil Huge +100% 120 feet 4 units of Fuel per Hour
Light House (non-directional) Oil Gigantic +100% 150 feet 8 units of Fuel per Hour
Burning Light House Oil Colossal +100% 180 feet 16 units of Fuel per Hour
Faerie Fire Magic Varies +100% M Only Illuminates Target As per Spell
Magical Weapon Magical Varies +40% M 5 feet at Medium At Will, Reaction to Change
Dancing Light (Small) Magical Small +100% M 30 feet As per Spell
Dancing Light (Medium) Magical Medium +100% M 40 feet As per Spell
Light Spell Magical Small +100% M 20 feet As per Spell
Continual Light Spell Magical Medium +100% M 60 feet As per Spell
Burning Character Varies Varies +100% 5 feet Varies

Directional Lighting

If a Light Source is channeled correctly, it provides light in a cone instead of in a full radius. The radius of the light is replaced with a Range of light. The narrower the cone, the more concentrated the light and so the further it goes.

The Width of the Cone is equal at 1/2 the Radius of the Light Source if the Range of the Light Source is equal to double the Radius of the Light Source. For every multiple of Radius you increase the Range by, half the Radius. If you wish to only increase Range by 1/2 Radius, the Cone of Light's Width is equal to 3/4 Radius.

Directional Lighting
Range of Light Width of Cone
+1/2 Radius 3/4 Radius
x2 Radius 1/2 Radius
x3 Radius 1/4 Radius
x4 Radius 1/8 Radius
x5 1/16

For example, a Lantern has a Light Radius of 30 feet. A Bullseye Lantern narrows that into a cone that is 15 feet wide at the end and doubles the effective range to 60 feet. If the cone of light were further narrowed, to about 2 feet, the light's effective Range would be equal to 150 feet feet.

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