Particle system is seen as black from certain angles

Question

I created a particle system that should act as a spaceship's vehicle fire.

I've added it in a node loaded from a COLLADA file (made with Blender):

let engine = _spaceship.childNode(withName: "Engine", recursively: false)!

let engine_pSystem = SCNParticleSystem(named: "Engine", inDirectory: "art.scnassets")!
engine.addParticleSystem(engine_pSystem)

But the particle system looks black (literally like smoke) from certain angles, while from certain angles it looks normal (like in the scnp file of the image above). This video shows the problem: https://youtu.be/JvNe140C068

In the properties inspector (of the particle system shown in your screenshot) can you scroll down and screenshot the rest of the details? I have a suspicion your placard direction is not quite right. — Confused, Oct 02 '16 at 11:08

score 2 · Accepted Answer · answered Oct 02 '16 at 13:33

2

Try these settings, or similar to them...

answered Oct 02 '16 at 13:33

Confused

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What about this specifically fixed the problem? – kevlar Apr 25 '17 at 07:03
No, but I don't have a setup to try this. I'd like to understand the underlying concept as opposed to trying random things and not understanding why they work. – kevlar Apr 26 '17 at 21:07
You don't need a setup to try this. You can start with the SceneKit template, and nothing else. That's what this is. The question doesn't provide enough information (nothing about lighting, scene setup, cameras, backgrounds, objects, etc), hence the "try this..." @kevlar – Confused Apr 29 '17 at 09:41

Particle system is seen as black from certain angles

1 Answers1