public void SetContent(Mesh3d mesh)
{
m_mesh3d = mesh;
Vector3L[] vertices = mesh.GetVertices();
Vector3L min = vertices[0];
Vector3L max = vertices[0];
for (int i = 1; i < mesh.m_triangleList.Count * 3; ++i)
{
min.x = FixPointMath.Min(vertices[i].x, min.x);
min.y = FixPointMath.Min(vertices[i].y, min.y);
min.z = FixPointMath.Min(vertices[i].z, min.z);
max.x = FixPointMath.Max(vertices[i].x, max.x);
max.y = FixPointMath.Max(vertices[i].y, max.y);
max.z = FixPointMath.Max(vertices[i].z, max.z);
}
m_aabb = Mesh3d.FromMinMax(min, max);
}
public static void AccelerateMesh(Mesh3d mesh)
{
if (mesh.m_accelerator != null)
{
return;
}
Vector3L[] vertices = mesh.GetVertices();
Vector3L min = vertices[0];
Vector3L max = vertices[0];
for (int i = 1; i < mesh.m_triangleList.Count * 3; ++i)
{
min.x = FixPointMath.Min(vertices[i].x, min.x);
min.y = FixPointMath.Min(vertices[i].y, min.y);
min.z = FixPointMath.Min(vertices[i].z, min.z);
max.x = FixPointMath.Max(vertices[i].x, max.x);
max.y = FixPointMath.Max(vertices[i].y, max.y);
max.z = FixPointMath.Max(vertices[i].z, max.z);
}
mesh.m_accelerator = new BVHNode();
mesh.m_accelerator.m_bounds = FromMinMax(min, max);
mesh.m_accelerator.m_children = null;
// this.m_accelerator.m_triangles = this.m_triangleList.Count;
// this.m_accelerator->triangles = new int[mesh.numTriangles];
// for (int i = 0; i < mesh.numTriangles; ++i) {
// mesh.accelerator->triangles[i] = i;
// }
//this.m_accelerator.m_triangles = this.m_triangleList;
// for (int i = 0; i < mesh.m_triangleList.Count; ++i)
// {
// mesh.m_accelerator.m_triangles.Add(mesh.m_triangleList);
// }
mesh.m_accelerator.m_triangles.AddRange(mesh.m_triangleList);
SplitBVHNode(mesh.m_accelerator, mesh, 3);
}