Texture Operations

Defines
#define	GW_TEX_LEAVE   0
	Use the source pixel value.
#define	GW_TEX_REPLACE   1
	Use the texture pixel value.
#define	GW_TEX_MODULATE   2
	Multiply the source with the texture.
#define	GW_TEX_ADD   3
	Add the source and texture.
#define	GW_TEX_ADD_SIGNED   4
	Add the source and texture with an 0.5 subtraction.
#define	GW_TEX_SUBTRACT   5
	Subtract the source from the texture.
#define	GW_TEX_ADD_SMOOTH   6
	Add the source and the texture then subtract their product.
#define	GW_TEX_ALPHA_BLEND   7
	Alpha blend the texture with the source.
#define	GW_TEX_PREMULT_ALPHA_BLEND   8
	Alpha blend the the source with a premultiplied alpha texture.
#define	GW_TEX_ALPHA_BLEND2   9
	Alpha blend the the source with a premultiplied alpha texture with GL_MODULATE as the tex env instead of GL_DECAL.

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Define Documentation

#define GW_TEX_LEAVE   0

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Use the source pixel value.

#define GW_TEX_REPLACE   1

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Use the texture pixel value.

#define GW_TEX_MODULATE   2

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Multiply the source with the texture.

#define GW_TEX_ADD   3

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Add the source and texture.

#define GW_TEX_ADD_SIGNED   4

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Add the source and texture with an 0.5 subtraction.

#define GW_TEX_SUBTRACT   5

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Subtract the source from the texture.

#define GW_TEX_ADD_SMOOTH   6

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Add the source and the texture then subtract their product.

#define GW_TEX_ALPHA_BLEND   7

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Alpha blend the texture with the source.

#define GW_TEX_PREMULT_ALPHA_BLEND   8

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Alpha blend the the source with a premultiplied alpha texture.

#define GW_TEX_ALPHA_BLEND2   9

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Alpha blend the the source with a premultiplied alpha texture with GL_MODULATE as the tex env instead of GL_DECAL.