Unity Light Skills

BATCH-FIRST: Use *_batch skills when operating on 2+ lights.

Skills Overview

Single Object	Batch Version	Use Batch When
`light_set_properties`	`light_set_properties_batch`	Configuring 2+ lights
`light_set_enabled`	`light_set_enabled_batch`	Toggling 2+ lights

No batch needed:

•light_create - Create a light
•light_get_info - Get light information
•light_find_all - Find all lights (returns list)

Light Types

Type	Description	Use Case
`Directional`	Parallel rays, no position	Sun, moon
`Point`	Omnidirectional from a point	Torches, bulbs
`Spot`	Cone-shaped beam	Flashlights, spotlights
`Area`	Rectangle/disc (baked only)	Windows, soft lights

Skills

light_create

Create a new light.

Parameter	Type	Required	Default	Description
`name`	string	No	"New Light"	Light name
`lightType`	string	No	"Point"	Directional/Point/Spot/Area
`x`, `y`, `z`	float	No	0,3,0	Position
`r`, `g`, `b`	float	No	1,1,1	Color (0-1)
`intensity`	float	No	1	Light intensity
`range`	float	No	10	Range (Point/Spot)
`spotAngle`	float	No	30	Cone angle (Spot only)
`shadows`	string	No	"soft"	none/hard/soft

Returns: {success, name, instanceId, lightType, position, color, intensity, shadows}

light_set_properties / light_set_properties_batch

Configure light properties.

Parameter	Type	Required	Description
`name`	string	No*	Light object name
`instanceId`	int	No*	Instance ID (preferred)
`r`, `g`, `b`	float	No	Color (0-1)
`intensity`	float	No	Light intensity
`range`	float	No	Range (Point/Spot)
`shadows`	string	No	none/hard/soft

python

# Single
unity_skills.call_skill("light_set_properties", name="TorchLight", intensity=2.0, r=1, g=0.6, b=0.2)

# Batch
unity_skills.call_skill("light_set_properties_batch", items=[
    {"name": "Light1", "intensity": 2.0},
    {"name": "Light2", "intensity": 2.0},
    {"name": "Light3", "intensity": 2.0}
])

light_set_enabled / light_set_enabled_batch

Enable or disable lights.

Parameter	Type	Required	Description
`name`	string	No*	Light object name
`instanceId`	int	No*	Instance ID
`enabled`	bool	Yes	Enable state

python

# Single
unity_skills.call_skill("light_set_enabled", name="TorchLight", enabled=False)

# Batch - turn off all torches
unity_skills.call_skill("light_set_enabled_batch", items=[
    {"name": "Torch1", "enabled": False},
    {"name": "Torch2", "enabled": False},
    {"name": "Torch3", "enabled": False}
])

light_get_info

Get detailed light information.

Parameter	Type	Required	Description
`name`	string	No*	Light object name
`instanceId`	int	No*	Instance ID

Returns: {name, instanceId, path, lightType, color, intensity, range, spotAngle, shadows, enabled}

light_find_all

Find all lights in scene.

Parameter	Type	Required	Default	Description
`lightType`	string	No	null	Filter by type
`limit`	int	No	50	Max results

Returns: {count, lights: [{name, instanceId, path, lightType, intensity, enabled}]}

Example: Efficient Lighting Setup

python

import unity_skills

# BAD: 4 API calls
unity_skills.call_skill("light_set_properties", name="Light1", intensity=2.0)
unity_skills.call_skill("light_set_properties", name="Light2", intensity=2.0)
unity_skills.call_skill("light_set_properties", name="Light3", intensity=2.0)
unity_skills.call_skill("light_set_properties", name="Light4", intensity=2.0)

# GOOD: 1 API call
unity_skills.call_skill("light_set_properties_batch", items=[
    {"name": "Light1", "intensity": 2.0},
    {"name": "Light2", "intensity": 2.0},
    {"name": "Light3", "intensity": 2.0},
    {"name": "Light4", "intensity": 2.0}
])

Common Light Setups

Outdoor Scene (Sun)

python

unity_skills.call_skill("light_create",
    name="Sun", lightType="Directional",
    r=1, g=0.95, b=0.85, intensity=1.2, shadows="soft"
)

Indoor Scene (Ceiling Light)

python

unity_skills.call_skill("light_create",
    name="CeilingLight", lightType="Point",
    y=3, r=1, g=0.98, b=0.9, intensity=1.5, range=10
)

Dramatic Spotlight

python

unity_skills.call_skill("light_create",
    name="Spotlight", lightType="Spot",
    y=5, intensity=8, spotAngle=25, shadows="hard"
)

Best Practices

•Use Directional light for main scene illumination
•Point lights for localized sources (lamps, fires)
•Spot lights for focused beams (flashlights, stage)
•Limit real-time shadows for performance
•Area lights require baking (not real-time)
•Use intensity > 1 for HDR/bloom effects