Custom SceneNode with collision

[barebones]

Hi, a little n00b question,
how do I add collision detection support to a custom SceneNode? Which interface(s) does the node need to implement? (The node contains a good number of triangles already organized in a tree.)

Thanks.

[JP]

I guess you just need to create a triangle selector for the node, not sure how you'd go about it but you could look at how the SceneManager class creates triangle selectors from nodes. Or maybe you can just use that function on your custom node... Have you tried that?

[aheymann]

Hallo

I have implemented it in the following way :

(This is a code snippet and might not be optimised)

Code: Select all

// A global selector (World)
IMetaTriangleSelector      *World;
// Declare a SMesh
SMesh         Mesh;
// Declare a local triangle selector
ITriangleSelector *selector;

// _3DPlanes is a SMeshBuffer containing the triangles
Mesh.addMeshBuffer(&_3DPlanes);  
selector = SceneManager->createOctTreeTriangleSelector(&Mesh, this);
setTriangleSelector(selector);
World->addTriangleSelector(selector); // add all the various mesh selectors to this meta selector

Hope it gives you some ideas. The code above will add the triangles in a custom node to a 'local' selector (which can be dropped later) and then in turn adds it to a meta selector (the 'world'). This allows for custom collision detection and searching.

Anton