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 replied to Roy Hirshkowitz's discussion AccuRender Studio
"Thanks a lot. It's now working. I appreciate Roy for the heads up."
Wednesday
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"Does this happen on every model you attempt.  For example, if you just draw a sphere and try to render it does that work?  If it's only happening on specific models I'll need to test them here to see if I can reproduce the…"
Sep 19
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"Set PROXYNOTICE to 0 (I think) to prevent AutoCAD from showing these warning if you don't want to see them."
Sep 19
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"To write an ArScene file from the AutoCAD plugin load the scene and use the File->Save Scene As... option from the menu on the AccuRender Studio palette.  The ArScene command no longer exists.  The file should include all of the…"
Sep 19
akinlolu olugboji replied to Roy Hirshkowitz's discussion AccuRender Studio
"These I believe show up at the opening of the drawing but do not prevent the applications (plugins)  from running. From what I see too, Accurender 3 must have being installed at a point in time and removed, but there are still references to it."
Sep 17
OYEBANJI EMMANUEL replied to Roy Hirshkowitz's discussion AccuRender Studio
"These are the errors i am getting. Can you help me out ?"
Sep 17
akinlolu olugboji replied to Roy Hirshkowitz's discussion AccuRender Studio
"I do know that it takes a while for ARS (AccuRenderStudio) to start after after clicking on the icon if you are running the standalone. BUt it does not freeze on my end. Maybe it is taking time to load the material on your end. You share a simple…"
Sep 16
OYEBANJI EMMANUEL replied to Roy Hirshkowitz's discussion AccuRender Studio
"Good day Akin, I also just installed accurender studio for autocad 2020 but after loading materials for my scene, the render setup window remained frozen. How can i correct this error."
Sep 16

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