Defines the aiLight data structure.
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Defines the aiLight data structure.
◆ aiLightSourceType
Enumerates all supported types of light sources.
Enumerator |
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aiLightSource_UNDEFINED | |
aiLightSource_DIRECTIONAL | A directional light source has a well-defined direction but is infinitely far away.
That's quite a good approximation for sun light.
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aiLightSource_POINT | A point light source has a well-defined position in space but no direction - it emits light in all directions.
A normal bulb is a point light.
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aiLightSource_SPOT | A spot light source emits light in a specific angle.
It has a position and a direction it is pointing to. A good example for a spot light is a light spot in sport arenas.
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aiLightSource_AMBIENT | The generic light level of the world, including the bounces of all other light sources.
Typically, there's at most one ambient light in a scene. This light type doesn't have a valid position, direction, or other properties, just a color.
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aiLightSource_AREA | An area light is a rectangle with predefined size that uniformly emits light from one of its sides.
The position is center of the rectangle and direction is its normal vector.
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_aiLightSource_Force32Bit | This value is not used.
It is just there to force the compiler to map this enum to a 32 Bit integer.
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