// Converts an OBJMesh (assumed to be a tri-mesh) to a bullet-friendly structure
public static BulletOBJMesh BulletMeshFromUnity(OBJLoader.OBJMesh mesh)
{
BulletOBJMesh btmesh = new BulletOBJMesh();
btmesh.vertices = new float[mesh.vertices.Count * 3];
for (int i = 0; i < mesh.vertices.Count; i++)
{
UnityEngine.Vector3 curVert = mesh.vertices[i];
btmesh.vertices[i * 3 + 0] = curVert[0];
btmesh.vertices[i * 3 + 1] = curVert[1];
btmesh.vertices[i * 3 + 2] = curVert[2];
}
List <int> indList = new List <int>();
for (int i = 0; i < mesh.faces.Count; i++)
{
int[] faceIndices = mesh.faces[i].indexes;
for (int j = 0; j < faceIndices.Length; j++)
{
int idx = faceIndices[j];
indList.Add(faceIndices[j]);
}
}
btmesh.indices = indList.ToArray();
return(btmesh);
}
public BulletOBJMesh Scale(float x, float y, float z)
{
BulletOBJMesh scaledMesh = new BulletOBJMesh();
scaledMesh.vertices = new float[vertices.Length];
scaledMesh.indices = new int[indices.Length];
vertices.CopyTo(scaledMesh.vertices, 0);
indices.CopyTo(scaledMesh.indices, 0);
for (int i = 0; i < (int)scaledMesh.vertices.Length / 3; i++)
{
scaledMesh.vertices[i * 3 + 0] *= x;
scaledMesh.vertices[i * 3 + 1] *= y;
scaledMesh.vertices[i * 3 + 2] *= z;
}
return(scaledMesh);
}
