Alpha channel: Difference between revisions
		
		
		
		
		
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| The '''alpha channel''' is the fourth channel of an image, where the first three channels are red, green, and blue. Generally, a [[TGA]] file can be saved with just the [[RGB]] channels (24bit), or with all four channels (32bit). In Source, it is used to define either [[opacity]] or self-illumination. | The '''alpha channel''' is the fourth channel of an image, where the first three channels are red, green, and blue. Generally, a [[TGA]] file can be saved with just the [[RGB]] channels (24bit), or with all four channels (32bit). In Source, it is used to define either [[opacity]] or self-illumination. | ||