PROTO MyFirstExternProto [
	field			MFString	url					[]
	eventIn			MFString	set_url
	eventOut		MFString	url_changed
	field			SFColor		color				1 2 3
	exposedField	SFRotation	scaleOrientation	0 0 1 0
//	field			SFNode		nodeField			Material2D {emissiveColor 4 3 3}
]
{
	Appearance {
		material Material2D {
			emissiveColor IS color
		}
		textureTransform TextureTransform {
			rotation IS scaleOrientation
		}
	}
}
