my longest ever bryce render is about upto 0ne hour which i think is really long. Just wondering you guys longest render time? :)

For one frame or an animation? Using the Premium Render feature in Bryce5 and the Depth of Field and Soft Shadows effects, some extra light sources, reflections, transparencies, etc.... On my G4 450 with 896MB RAM I've had massive renders like this go for 12 hours or more, but I usually make them several thousand pixels wide if I'm going to all that trouble, which also adds to the time. Some take so long I stop them in the middle and do a save. Depending on the size and complexity a full broadcast size animation (720x486) around 10 seconds can take anywhere from a few minutes to several days depending upon any of the factors mentioned above.

25 hours and it was only 450x600 pixels, WAY too many polys, objects, volumes and stupidly gigantic photo textures.

Yeah, your machine, the amount of ram, the number of polys and volumetrics etc. I had many renders take a few days on my old P266 system with bryce 3. Patience is a virtu when your to creative for your hardware. :-)

AMD Athlon 1.2Ghz w/1.2GBRam using depth of field combined with volumetric materials and complex textures rendered at Premium at 850x400 pixels = 3 days 14 hours.

6 days on a Pentium 233 with 128 MB of RAM, several terrains at 1024 resolution, custom lighting, and photo textures at 2000x2000. I just finished one that took 9 hours with ultra fine antialiasing on a Pentium 1.7 GHz and 256 MB of RAM. That was pretty intense. ;)

10 days on a Pentium 700 w/128 MB of ram. Pumped up the specularity and reflection for a rain scene. Killed the render time which had been 10 minutes.

Took me one full week doing a render ready to print, meaning 300 dpi with the premium settings. When it's not to print, 43 hours was the longest render with the premium settings. Using a Dual Pentium 3 866 with 512 MB ram Pleiades

17x17 poster render at 300 dpi on a 233 MHz iMac. I upgraded soon after.

27 hours for "Temple of the Moon, Sanctuary" which is in my gallery. Old P-II, 400 w/ 256Mb ram. Not all that complicated a scene, but oh those reflective surfaces!

about a week for this one....

3 days lol...man, I don't have that much patience. I just stopped a render (Premium) that was running toward 16 hrs and only at 83%, with a Pentium 1000 processor and 511 of ram. Superfine usually works ok for most of my scenes.

I rarely let them go over a day, but the longest one I've had that I quickly halted would be a 25 second animation rendering at about a 12 hours per frame at 400x300, that long enough for ya?

Kidding, kidding. Too irresistable.
72 hours was my longest.

Attached Link: http://www.renderosity.com/viewed.ez?galleryid=120024&Start=1&Artist=TheWingedOne&ByArtist=Yes

80 hours and still counting on a G4 MP 500 with 1.2GB RAM clicking onto the above link will lead you to the WIP image rendered in Poser. Originally I wannted to do this in Vue, but because of massive importing problems I did it using Bryce. Unfortunately it's slow as hell! The final version has a resolution of 2200x1000 pixels for printing purposes. Lots of plants/grass and lightrays, altogether the file has more than 2.3 million polygons (filesize is over 200MB). I will have a little celebration, when the rendering is done! Couple of glasses of champagne or something like that. ;o)

Damn, some of the times you people are posting are insane. Most I've ever done so far is 4 hours on my Pentium 2 450 with 384MB ram. Do the other 3d applications take this long or are they faster?

Well, my case was an extreme example wherein I was asking a slow computer to to a big image with some complex shapes and reflections ...and when I realized it was going to take more than a few days, I decided to stick it out for curiosity's sake. I wouldn't be too quick to try that again.

Longest - 80+ hours for a large image that ended up as a 70x32 inch poster. I used a Mac - 400mhz. The scene file was over 100mb, had over 3600 objects and aprox 13 million polygons. Lots of weighty textures, large lattices and several light sources. I do a lot of large stuff for print and have to do foreground/background layers on many of them to get around memory size problems ( I only have 256mb on my machine). I do lots of compositing in photoshop. Q. Speaking of speed. I've heard that Vue deEsprit on Mac OS X uses smp and makes full use of the (Mac's) dual processors. Has any Mac users ou t here used it and given it a timing vs., say, OS 9? I hope Corel tweeks the next iteration of Bryce for Mac to do the same. We need to chop down these horrible rendering times!

a simple 72 dpi image at 640x480...yet to be done for i've not the patience to do it....will take almost 5 days (4 days 19 hrs.) 667 MHz celeron procsessor with 128 MB DRAM and did i mention ONLY 72 DPI!!!?...why?.....an all marble and gold tomb with 5 chandeliers 8 candles on each and all flame are radial lights...christ i need another computer for just rendering...lol