d3d z-buffer

Use depth format D3DFMT_D16_LOCKABLE or D3DFMT_D32F_LOCKABLE.

[edited by - namethatnobodyelsetook on August 5, 2003 1:48:19 PM]

If you try to access the z-buffer, you''re not guarenteed:

1.) access. Some cards won''t allow you to get to it
2.) the correct data. Sometimes you''ll get random data.

And sometimes it may work, but don''t depend on it. So your best bet would be to find another solution to your problem without locking the z-buffer.