deejay - I agree with what everyone else has said. Lux will simply take longer than Poser for renders, but typically the results are worth the wait. I took a quick look at your gallery here, and the lighting set up in many (most??) of your renders would take quite a while to clear up in Lux, especially if you just let Reality convert your Poser Lights to Lux lights.

When working with Reality/Lux you need to set up your lighting like a photo studio. Using the mesh lights that come with reality is a great way to start. You can use Poser lights, and let Reality convert them to Lux lights, but while learning Reality/Lux it's best to keep your lighting setups simple.

One simple rule of thumb with the mesh lights is if you want softer shadows either increase the size of the mesh light, or add a low intensity fill light. If you want harder, more defined shadows, reduce the size of your mesh light. Note: mesh lights are meshes in your Poser scene that have been turned into light emitters - you can make your own lights by turning any object in the scene into a light emitter in the Reality3 materials editor.

How long it takes for Lux to "bake" a scene to perfection depends on a lot of factors including; number and types of lights, lighting setup, materials used (reflective, caustics, and SSS mats, translucent mats will all increase render times), number and complexity of objects in the scene, and scene set up. This is all covered in the excellent Reality manual .... it really is worth the time it takes to read it.

Keep in mind that Lux is a completely different renderer than Firefly. Reality does an excellent job of converting Poser/Firefly materials and lights to Lux, but like any extremely complex conversion, there is only so much that can be automated. To get the best results the user needs to learn how to optimize everything in Poser for Reality3 and then in Reality3 for Lux. Reality does a fantastic job in conversion, and often needs little or no manual editing, but it is virtually impossible to converte all the extremely complex shaders found in a lot of content to Lux materials, so user intervention in the material editor will be needed at some point, especially if you want to get jaw-dropping results on every render.

For reference with regard to how long renders take with Reality3/Lux (keep in mind I'm a novice, not an expert), I have 3 images in my gallery that I did with Reality3/Lux (Laptop with a quadcore i7 running at 2.3ghz). My very first render I did Reality3/Lux (titled A Simple Test - http://www.renderosity.com/mod/gallery/index.php?image_id=2429494) took about 4 hours as I recall. It's a great example of what Reality3/Lux is capable of "right out of the box" - I didn't change a thing in Reality - just hit render frame and sent it straight to Lux. The 2nd image (titled Jungle Queen - http://www.renderosity.com/mod/gallery/index.php?image_id=2434136) I used the sun light included with Reality 3, linear tone mapping,  ISO 100, shutter speed 1/500, fstop 5.6. SSS was enabled for the skin shaders with a slight modification to the default SSS colors, and the gold metal bits were set to gold in Reality - polish reduced to 4500, with no other shader modifications. Rendered on a quadcore i7 laptop for approx. 18 hours, 650 s/p (didn't have to go that long, just left it running while at work on 14 hour workday, probably would have been fully cooked at about 6-8 hours). The third image (titled Castel Mage - http://www.renderosity.com/mod/gallery/index.php?image_id=2440008) I did a bit more materials editing than the previous two, and it had a more complex light setup and a lot of geometry using one of StoneMason’s scenes (keep in mind that reality will calculate ray traces on everything in your scene - not just what is visible on your camera), and it took about 70 hours (long render time partially because of my light setup and because I didn't remove parts of the scene that were off camera).

Hope all this helps a bit – based on what I’ve seen in various discussions and galleries, you can get fairly fast renders out of Lux (2-4 hours) with careful attention to scene setup, shaders, and lighting.

Good Luck!!

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