what does it add, over 4 or 5?

Better control over shading and smoothing inside Poser, via smoothing groups and crease angles.

Minor improvements to the cloth room (speed, mostly).

New shader nodes and material options, including the ability to save and use the P6 equivalent of MAT poses.

Expanded Python scripting support.

Shadow-catcher option, for rendering characters against 2D backgrounds.

Point lights. Negative (dark) lights. Image-based lighting. Ambient occlusion.

OpenGL hardware acceleration and other enhancements to the real-time preview (including transparency).

Area-render function.

Message edited on: 01/05/2006 21:07