AccuRender nXt

advanced rendering for AutoCAD

I just opened an older interior model in AR5 that I last worked on in Acad2004 and AR4.  There are a bunch of AR3 "daylight" fixtures over all the exterior wall openings.  They don't appear in the AR5 Lights list, and they don't appear to doing anything when I render in AR5.  I'm guessing the nXt platform wasn't set up to handle those (for some reason I'd never be able to understand... so don't bother explaining).  What I'd like to know is whether there is something in AR5 that might be called an equivalent type of light source.

Thanks  

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Put a pane of glass in your window. Assign a clear material to it. Select the pane of glass and in Accurender Object Properties select "Daylight Portal".

If you've modelled the pane of glass as a thin surface or region, then also select "Thin" in the object properties.

I would also suggest that the clear material you use has an IOR of 1.0. It'll speed up the calculations.

Great!  I'm guessing there's someplace in the AR5 manual or in Al Hart's book that describes solutions like this... True?

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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…"
Dec 23, 2020
Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"Here's the latest render using metallic materials. The chrome now looks a lot better. I do feel though that the reflected light on the back wall is too bright."
Dec 23, 2020
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"Ah-- so that's a function of the material type.  The standard material won't give you a mirror anymore.  You need to change the material to metallic and you should get something more familiar.  Use the Type popdown on the…"
Dec 18, 2020
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."
Dec 17, 2020

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