AccuRender nXt

advanced rendering for AutoCAD

Interior rendering of fireplace. No post process, just playing with light channels and adding some glare in nXt image editor.
It took 10 hours in this resolution (600X400 pixels!!!). After more than 650 passes there is still a lot of noise in dark areas of the room. I like the result a lot, but the time needed is discouragingly long (and practically unusable on my current hardware).

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Comment by George Ioannidis on October 19, 2011 at 9:17am

Jorge, I was talking about adding glare in nXt image editor. It is in FX tab.

Mike, my AMD Phenom 4 core with 8GB ram (1666MHz) compared to my son's 6 core machine is just ~20% slower. I think the only way to speed things up is to involve GPUs somehow into rendering process, working with CPU side by side.

Comment by mike makki on October 19, 2011 at 8:38am

i  recently got AMD 6 core 8mb memory  it will run half the time

Comment by Jorge Javier Lara Domínguez on October 19, 2011 at 6:52am

Me gusta la imagen George. coincido con tigo lo unico desalentador del nxt, es el tiempo de proceso. Hablas de adicion de reflejos en el editor de imagenes de nxt, como es eso? podrias explicarme un poco?

Comment by Sampdoria on October 19, 2011 at 1:52am

Sure guys, but remember, every render and scenario varies. Sometimes the original renderer takes ages to do one pass while the pathtracer does 20-30. The Packet Tracer image will go above the Path Tracer in the Pshop Layers. Then you use a soft erase brush to erase off parts of the packet tracer which are not required.

 

Similar observation on Exterior Rendered plants in Packet vs Path Tracer. Path Tracer generally gives the best render but the plants seem to get unsaturated and dark. Again, a few passes on Packet Tracer to get some nice green colours and do the Photoshop overlay trick! :)

Comment by George Ioannidis on October 19, 2011 at 12:28am

Clever tip Birdman. I'll definitely try it on this render to see how the two will blend together.

Comment by akinlolu olugboji on October 19, 2011 at 12:07am

@Sampodoria nice trick, which one goes on which, path tracer on top or packet tracer on top. All these tricks would no a lot, alot of good if folks could document them and in the, "help and and tutorial" section or at accustudio like Daniel did the advance texture with it first feature on Nxt.   

Comment by Sampdoria on October 18, 2011 at 10:50pm

Nice work George. What I usually do *after* running the pathtracer for some time is re-render the image with the original renderer. I then overlay the images and erase out the very grainy parts. I only do this if its a picky client.

Comment by Roy Hirshkowitz on October 18, 2011 at 9:54am

No-- increasing the indirect bounces won't make a difference to the Path Tracer.  The Path Tracer currently uses a minimum of 4 bounces.

Comment by akinlolu olugboji on October 18, 2011 at 9:03am

Increasing indirect bounces to 2 would help the dark spaces but I believe more work for NXt. try running on different machines and combining with the IE. 

Comment by Miguel Tano Adanes on October 18, 2011 at 7:35am

I like it! Maybe too much glare, and I would de-power the lights on the wall

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Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"Yes, the glass material translated as Refractive automatically."
Dec 23, 2020
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"Yeah-- like I mentioned the caustics are accurate but could be annoying.  Things that might alter it include changing the sun angle so it's not striking the chair's metal surfaces so directly, changing the roughness of the chair…"
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Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
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Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
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Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"Pacing a mirror on the back wall (reflections = 1.0, noise = 0.0), you can see the difference more clearly (top image is nXt)."
Dec 18, 2020
Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"You can see from these two images that there is definitely something wrong with reflective surfaces. It appears the light is being reflected, but not objects or textures. In the nXt version (top image), the carpet texture is being reflected in the…"
Dec 18, 2020
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"It's interesting-- overall the quality of this interior is very high for that short amount of processing, and may be acceptable for certain scenes.  In this one, however, there are some reflective caustics that are taking longer to…"
Dec 17, 2020
Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"ARDECAL now works. Here's the image after 10 minutes of rendering. I do have a slight concern that reflective surfaces seem rather dull. This is particularly evident on the end frame of the desk and the base of the chair."
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