AccuRender nXt

advanced rendering for AutoCAD

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Latest version of AccuRender Studio is here.  Among other changes:

  1. ArStudio command automatically loads the model and begins interactive rendering in addition to bringing up the Control Panel palette.
  2. Decal interface has been redone to include multiple decals and cylindrical projections.
  3. Legacy data is being handled a little better.

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Here's a direct comparison between nXt Path Tracer and AR Studio.

Both ran for just under 2 hours.

ARDECAL doesn't seem to work.

I'll get a new one out today-- I think I know how to fix this.  Which image is which?

Top one is nXt.

Here is the link to the new one-- untested but hopefully ArDecal works.  When you get a chance try running the top image for a short time, say 10 minutes, and see what you get.

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.

It's interesting-- overall the quality of this interior is very high for the 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 resolve.   You can see them clearly on the back wall, including the bright patch behind the chair and some more subtle ones.  They're much better resolved in the 2 hr. version. This is direct sunlight that's bouncing off of the metallic surfaces.  The spots are pretty bright so they're affecting the tone operator as well which has the net effect of "livening" up the metallic surfaces themselves.  These kind of effects are accurate, but may be annoying depending on your goals.

All of this, BTW, is missing in the nXt version.

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 drawer handles. This is missing from the Studio version (bottom image).

Placing a mirror on the back wall (reflections = 1.0, noise = 0.0), you can see the difference more clearly (top image is nXt).

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 material editor to change this.

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.

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 surfaces, or turning down the sun a little or adding a window covering.

On another note-- the glass should be a Refractive material with the Thin box checked.  (It probably is already, just mentioning it because the Standard material is not appropriate for glass-- Standard materials with transparency will work for things like curtains.)

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OYEBANJI EMMANUEL posted a photo

Render 1 copy (1)

This is a remake of one of Peter Milner's scenes. I dont have the file. I photo-matched it in sketchup and rendered in nxt render for autocad.I just retouched it and increased the resolution.
Dec 20, 2023
OYEBANJI EMMANUEL posted a photo

Render 1

This is a remake of one of Peter Milner's renders.I dont have the file. I photo-matched the scene in sketchup and rendered with nxt render in autocad.I replicated it.
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OYEBANJI EMMANUEL posted a photo

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An office render i did recently.Critics and comments are welcome.Its one of the frames of a walkthrough animation i did recently.I used sketchup to model, exported to autocad and rendered with nxt render.
Nov 22, 2023
OYEBANJI EMMANUEL posted a discussion

nxt render Course/tutorial

Good day Sir,I want to know the number of people that would be interested in a nxt render course because i plan to create one.Please send me a prompt reply if you are interested.Just sayHi am in.Checkout a walkthrough i just created recently with nxt render for autocad after modelling in sketchup and then post-producing in photoshop.…See More
Nov 5, 2023
OYEBANJI EMMANUEL replied to N` Goraw's discussion ACCURENDER NXT FOR WALKTHROUGHS
"Good day Sir, Hope this message meets you well. I just completed a short walkthrough of an office. Its down here https://drive.google.com/file/d/1L4p5Iyiq5MiSK137UT1eH3POuiI5ZLDA/view?usp=drive_link"
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Maciej posted photos
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Marko Stout replied to Peter Milner's discussion Comotion
"Is comotion still om progres? I need to make some moving parts in NXT!!"
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Maciej commented on Maciej's photo
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v2

"Ok, give me couple of days, I'll try to work out the video tutoriał with mapping procedure. For free.. :) Regards, Maciej"
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