SCNBox different colour or texture on each face

Question

I\'m new to iOS development and I\'ve got myself stumped. I am trying to render a cube using SceneKit that has a different colour for each face.

This is what I\'ve g

Answer 1

Here's a Swift 4 answer.

    let colors = [UIColor.green, // front
                  UIColor.red, // right
                  UIColor.blue, // back
                  UIColor.yellow, // left
                  UIColor.purple, // top
                  UIColor.gray] // bottom

    let sideMaterials = colors.map { color -> SCNMaterial in
        let material = SCNMaterial()
        material.diffuse.contents = color
        material.locksAmbientWithDiffuse = true
        return material
    }

    materials = sideMaterials

To change the front material just grab the material and change it's content

let frontMaterial = materials[0]
frontMaterial.diffuse.contents = UIColor.white