Controlling the Appearance of Texture Mapping
What Is Alpha Blending?
- Alpha Blending is a linear blending from one
value to another as alpha
goes from 0.0 to 1.0:
Value = (1.0-alpha)*Value0 + alpha*Value1
- In texturing, it will be used for blending color components
- In RGBA texturing, the texture's alpha value is sometimes
used to specify blending
- In texturing, sometimes the texture's RGB color will be
used as 3 alpha values to give spectral color filtering
