Is there anyway to set the alpha transparency of a 3dSprite?

[Kale]

Is there anyway to set the alpha transparency of a 3dSprite? So i can display 3DSprites at 50% opacity for example?

[Ionic Wind Support Team]

There are a few ways. 

#1 Use the alpha channel of the image, for example PNG supports per pixel alpha transparancy.

#2 use the SetModulateColor method.  The RGBA function lets you specify the alpha value:

sprite->SetModulateColor(RGBA(255,255,255,128));

Would give you 50% transparency for the entire image.  As demonstrated in the '3Dsprites.src' example program included with Aurora.

#3 use color keying when you load the texture.  As you found out already.

[Kale]

Great thanks, i'll try 'SetModulateColor'.

[Ionic Wind Support Team]

You can also use SetModulateColor to 'tint' the sprite by the way. 

sprite->SetModulateColor(RGBA(255,100,100,128));

Reduces the green and blue channels giving the sprite more of a red hue while showing it at 50% transparency. 

[Kale]

Cool!