Sprite Kit Particle Emitter Shape

Question

How can a particle emitter be set to produce shapes (solid shapes/Core Graphics?), instead of texture images (png)?

In the documentation Manipulating the Particle Emitter, it looks like only a texture image can be set.

Answer 1

Only a SKTexture can be used, but that doesn't stop you from using SKShapeNode to create shapes and then create a SKTexture of that shape via the SKView method textureFromNode:.