ios - Mix colour in Sprite Kit -

i new sprite kit , want use implement simple game. i'd know if possible in sprite kit:

assume draw 2 circles, 1 in red , other 1 in green. there overlap area between 2 circles , want colour of area can automatically set red + green = yellow, kind of picture below.

is possible using sprite kit? if possible, how set up?

any reply appreciated!

you can play blending mode in conjunction skeffectnode:

class gamescene:skscene{      override func didmovetoview(view: skview) {           let effect = skeffectnode()          //creating shapenodes         let shape1 = skshapenode(circleofradius: 50)         shape1.fillcolor = skcolor.redcolor()         shape1.strokecolor = skcolor.clearcolor()         shape1.zposition = 1         shape1.blendmode = skblendmode.add          let shape2 = skshapenode(circleofradius: 50)         shape2.fillcolor = skcolor.greencolor()         shape2.strokecolor = skcolor.clearcolor()         shape2.zposition = 2         shape2.blendmode = skblendmode.add          let shape3 = skshapenode(circleofradius: 50)         shape3.fillcolor = skcolor.bluecolor()         shape3.strokecolor = skcolor.clearcolor()         shape3.zposition = 3         shape3.blendmode = skblendmode.add           //positioning         shape1.position = cgpoint(x: cgrectgetmidx(frame), y: cgrectgetmidy(frame))          shape2.position = cgpoint(x: shape1.position.x - 25, y: shape1.position.y - 50)          shape3.position = cgpoint(x: shape1.position.x + 25, y: shape1.position.y - 50)          effect.addchild(shape1)         effect.addchild(shape2)         effect.addchild(shape3)          self.addchild(effect)      } } 

the result: