Alpha channel: Difference between revisions
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[[category:glossary]][[category:Material system]] | [[category:glossary]][[category:Material system]] | ||
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 | 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. | ||
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