More examples please! - Githubissues

I love the idea of this, and really want to convert my shader graph materials to use it, but I'm stuck on an issue that I'm not sure how to solve.

All I want is to create a multi-color material. (Ideally with the colors moving, but I'm okay adding that in the next step.) Here's what I have so far:

    func cubeMaterial() async throws -> ShaderGraphMaterial {
        let color1: SGColor = .color3f([1, 0, 0])
        let color2: SGColor = .color3f([0, 1, 0])

        let color: SGColor = SGValue.modelPosition.x > 0 ? color1 : color2
//  ^^^^ error here ^^^^
// "Referencing operator function '>' on 'BinaryInteger' requires that 'SGScalar' conform to 'BinaryInteger'"

        let surface = SGPBRSurface(baseColor: color)
        return try await ShaderGraphMaterial(surface: surface, geometryModifier: nil)
    }

Incidentally, I think something like this could go in (or get linked from) the readme to help get folks started:

import SwiftUI
import RealityKit
import RealityKitContent
import ShaderGraphCoder

struct ImmersiveView: View {

    var cubeMesh: MeshResource = .generateBox(size: 0.5, cornerRadius: 0.01)
    var cubeResource: ShapeResource = .generateBox(size: .init(x: 0.5, y: 0.5, z: 0.5))

    func cubeMaterial() async throws -> ShaderGraphMaterial {
        // pulsing blue example
        let frequency = SGValue.floatParameter(name: "Frequency", defaultValue: 2)
        let color: SGColor = .color3f([0, 0, 1]) * sin(SGValue.time * frequency * (2*Float.pi))
        let surface = SGPBRSurface(baseColor: color)
        return try await ShaderGraphMaterial(surface: surface, geometryModifier: nil)
    }

    var body: some View {
        RealityView { content in
            let entity = ModelEntity(mesh: cubeMesh)
            entity.position.y = 2
            entity.position.z = -2

            if let material = try? await cubeMaterial() {
                entity.model?.materials = [material]
            }

            content.add(entity)
        }
    }
}

#Preview(immersionStyle: .mixed) {
    ImmersiveView()
}

praeclarum / ShaderGraphCoder

More examples please! #2