Lion Apple Boot Animation?

I have an earlt 2011 13-inch Macbook Pro running OS X Lion. I have been running Lion since it first came out first on an external hard drive, then on my main HD, with both upgrade and clean installs done. I have also clean installed Lion on our 2008 24-inch iMac. I noticed today in some Lion booting videos on YouTube that at the end of the boot process, the apple logo slides up into place and the rest of the login window fades in. I have never seen this animation on either my MBP or my iMac and think that it may have something to do with a higher level graphics card being required, although the iMac's is dedicated. I have a question... Can somebody with a 15/17 inch MBP and someone with a MBA respond with whether they have this animation at boot?