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Map types

The VarID_map variable type in Zeolite may be initialised as several different map types. These map types are represented by a signed 32-bit integer (positive or negative) that is set in zmap_Init, zmap_Init2 or zmap_InitMosaic, and retrieved using zmap_GetMapType. For readability, tokens are defined in 'Zeolite_defines.h' that may be used instead of the integer values (e.g. MAP_BYTE). These tokens are listed below, along with the corresponding integer value, pixel type, and bytes-per pixel (BPP) value.

Token	Map ID	Pixel type	BPP	Description
MAP_BYTE	1	BYTE	1	Generic 1-byte/pixel map, commonly used for mask maps.
MAP_WORD	2	WORD	2	Generic 2-bytes/pixel map.
MAP_RGB	3	ColourPixel	3	Default map type for image data such as light maps and textures.
MAP_RGBA	4	BYTE[4]	4	RGBA colour value.
MAP_DWORD	4	DWORD	4	Generic 4-bytes/pixel map.
MAP_DesignMap	10	DesignMapPixel	12	See Design map description.
MAP_Heightfield	20	float	4	See Heightfield description.
MAP_TerrainNormals	30	vector3c	3	See Terrain normals description.
MAP_WaterMap	40	WaterMapPixel	10	See Water map description.

Future versions of Zeolite will allow user-defined map types, and these map type IDs will be negative numbers. Hence, when using map IDs it is mandatory to use a signed long integer (32-bit).

zeolite/mapid.txt · Last modified: 2017/08/31 05:09 (external edit)

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