Sets the base alpha blend for the draw functions.


GML Code Example


Argument Description
alpha The alpha to set (between 0 and 1)

Returns: N/A


With this function you can set the base draw alpha for the game. This value can be set from 0 to 1 with 0 being fully transparent and 1 being fully opaque (the default value), and will affect all further drawing, including backgrounds, sprites, fonts, primitives and 3D. If any of those assets are drawn with their own alpha value changed, this will be added to the base alpha value set by this function, so a base alpha of 0.5 and a sprite being drawn with an alpha of 0.5 will actually draw the sprite with an alpha of 0.25.


GML Code Example

 draw_text(x+5, y+5, "LEVEL 1");
 draw_text(x, y, "LEVEL 1");

The above code will draw some text at the specified position with a shadow effect created by modified draw alpha and colour.

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