Welcome...and ya know...you can use almost all of what you know about Bryce/Poser and combine it with whatever you learn/know about fractals...meaning, you can create fractals and either use them as texture bitmaps and/or even (in some cases) import and use the fractal in Bryce/Poser.

I attached an image I've been playing with over the past few days (trying to get the lighting "right") where I created a single fractal in XD and imported it into Bryce to make "rocks". As the Bryce DTE is really a fractal generator (almost all your procedural textures and terrains, etc are "fractal based") I used the DTE to create a "fractal sky".
You also can use "volumetrics" straight out of the DTE...as these are fractals as well.

I know Audre (and others) have combined and/or used their fractals as texture maps with their Poser work.

Jonathan Allen has a tutorial entitled "disrupted fractals" in which he uses the DTE and the ability to "composite images" in the Mat Lab.

The URL is:

http://www.j.b.allen.btinternet.co.uk/fracttut/disfractut.html

The point is, is that "doing fractals" can be an accumulative knowledge thing--using your knowledge of other application to enhance your fractal experience and "joy factor".

Regards

Bryan