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GLBasic User Manual

Main sections

ALPHAMODE

ALPHAMODE alpha#



Changes the alpha mode for all the graphics output that follows. The alpha# value ranges from -1.0 to 1.0.

ALPHA VALUES:
alpha# > 0 - Additive alpha blending. (Fire, explosions)
alpha# = 0 - No alpha blending.
alpha# < 0 - Interpolated alpha blending (shadows, other cool FX)

Sample:
// ALPHAMODE
LOADBMP "Back.bmp"
PRINT "No alpha", 100, 100
ALPHAMODE .5
PRINT "Alpha +0.5", 100, 140
ALPHAMODE 1
PRINT "Alpha +1", 100, 160
ALPHAMODE -1
PRINT "Alpha -1", 100, 180
SHOWSCREEN
MOUSEWAIT

See also...