I'm sure copyentity doesn't keep the one surface... Dx has a thing where it processes a certain amount of triangles. If you go over this, there is a verrry small delay, whilst the rest of the triangles aobve this limit get processed or sent.
Now, i've never really held much faith with the copyentity thing. Why not try and combine all your cubes into the one surface? If you never need to move you cubes, it should make it very simple. Create a function, like the one you use to create your initial cube. Let it pass across a texture number, and your function will set the UV co-ords so the cube displays the correct texture.
Now, you will need to combine all the textures, onto one texture. Depending on the different textures, the different blocks will use, it could work. It would mean, your entire cube structure, will be the one surface, without doubt.
Now, i've never really held much faith with the copyentity thing. Why not try and combine all your cubes into the one surface? If you never need to move you cubes, it should make it very simple. Create a function, like the one you use to create your initial cube. Let it pass across a texture number, and your function will set the UV co-ords so the cube displays the correct texture.
Now, you will need to combine all the textures, onto one texture. Depending on the different textures, the different blocks will use, it could work. It would mean, your entire cube structure, will be the one surface, without doubt.