Creating Bullet ridgid Body from Octree in Real-Time

2017-05-30T09:14:51+00:00

So this may get a little complex but ill try to keep it fairly simplified. (this is C++)
Currently I have
struct cube - basic node of the octree
struct vtxarray - render information of the above cube which is updated on every change of the octree (only in spots needed)

I have a vector of vtxarrays which I used to derive the information for

Code:

        m_indexVertexArrays = new btTriangleIndexVertexArray(TriCount,Indices,indexStride,VertexCount,(btScalar*) &Vertices[0].x(),vertStride);        trimeshShape  = new btBvhTriangleMeshShape(m_indexVertexArrays,useQuantizedAabbCompression,aabbMin,aabbMax);btCollisionShape* groundShape = trimeshShape;

Is there a way to link into the mesh directly, so I can manipulate it more fluidly.

Would making every cube (non-empty) in the octree its own mesh be better for realtime manipulation, or is there a better way to build a shape in bullet where I have more control over the verticies. Or are there call backs that I can use to handle collision differently?

It works right now but its kinda slow on larger sizes (say 100k verts it takes about 1 sec to calculate).

I can post the code more fluidly if you have any question

thanx
chasester

Statistics: Posted by chasester — Tue May 30, 2017 9:14 am

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Creating Bullet ridgid Body from Octree in Real-Time