hi rojo,
i'm not sure if this is supposed to work, or if it's a limitation
hit space during preview to paste the two lights:
https://www.dropbox.com/s/2qvvmfpzeddim ... capx?raw=1
the objects sprite is white, but the object has Tint effect to color the instances differently. The blending mode set to additive
on start of layout, the red and green sprite combine to make yellow, after its pasted, it loses that additive appearance.
thanks!
edit: some more info:
the additive appearance works if you have coloured sprites -without- the tint effect: https://www.dropbox.com/s/fbyi61fgv5v9z ... capx?raw=1
(but it is not practical for my game without tint)
and of course, the tint effect works by itself: https://www.dropbox.com/s/1zczb6jzpqlqx ... capx?raw=1
So my problem only exists when both Tint and Additive are combined
One work around I was going to do was that i go without tint and make a function that creates a (tintless) overlapping Red, Green and Blue additive sprites, and simply vary their opacities to get the exact RGB value appearance I want. But I thought i should check with you first! thanks