To plan for the scene I’ll need to come up with a list of objects that will be needed and then put them into a class diagram.

• Scene
• Terrain (including volcano)
• Lava mesh
• Smoke particle
• Lava bubble
• Soot particle
• Sky clouds
• Tree
• Light
• Camera
• Action (not really)

That’s basically it. Now let’s figure out how these relate to each other:

So basically the whole scene will be held in “Scene” and then the scene will be made up of a bunch of scene nodes parented to the root scene node. The UML shows how they all derive from each other

I think from here I can start coding. Which I’ll talk about in the next post.