D3DLIGHTTYPE enumeration
Defines the light type.
Syntax
typedef enum D3DLIGHTTYPE {
D3DLIGHT_POINT = 1,
D3DLIGHT_SPOT = 2,
D3DLIGHT_DIRECTIONAL = 3,
D3DLIGHT_FORCE_DWORD = 0x7fffffff
} D3DLIGHTTYPE, *LPD3DLIGHTTYPE;
Constants
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D3DLIGHT_POINT
-
Light is a point source. The light has a position in space and radiates light in all directions.
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D3DLIGHT_SPOT
-
Light is a spotlight source. This light is like a point light, except that the illumination is limited to a cone. This light type has a direction and several other parameters that determine the shape of the cone it produces. For information about these parameters, see the D3DLIGHT9 structure.
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D3DLIGHT_DIRECTIONAL
-
Light is a directional light source. This is equivalent to using a point light source at an infinite distance.
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D3DLIGHT_FORCE_DWORD
-
Forces this enumeration to compile to 32 bits in size. Without this value, some compilers would allow this enumeration to compile to a size other than 32 bits. This value is not used.
Remarks
Directional lights are slightly faster than point light sources, but point lights look a little better. Spotlights offer interesting visual effects but are computationally time-consuming.
Requirements
Requirement | Value |
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Header |
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See also