There's a very good Python script at RDNA called "Advanced Render Settings" by Semideu.  It produces a ZDepth render which is far superior to the native Poser one in that it is antialiased and can also handle transparent texture maps.  The ZDepth render is in fact only one tiny aspect of this plugin, it will revolutionise the way you use Poser - get it, you won't be disapointed and if you make a lot of use of ZDepth renders it's indispensible.  I use it every day, the best $19.99 I ever spent for my CG work.

My self-build system - Vista 64 on a Kingston 240GB SSD, Asus P5Q Pro MB, Quad 6600 CPU, 8 Gb Geil Black Dragon Ram, CoolerMaster HAF932 full tower chassis, EVGA Geforce GTX 750Ti Superclocked 2 Gb, Coolermaster V8 CPU aircooler, Enermax 600W Modular PSU, 240Gb SSD, 2Tb HDD storage, 28" LCD monitor, and more red LEDs than a grown man really needs.....I built it in 2008 and can't afford a new one, yet.....!

My Software - Poser Pro 2012, Photoshop, Bryce 6 and Borderlands......"Catch a  r--i---d-----e-----!"