AccuRender nXt

advanced rendering for AutoCAD

We're up to Build 0082.  This new major release of the AccuRender and nXt product line now includes a plugin that works entirely within AutoCAD just like previous versions. It's got a ton of new features and is available for free for a while.  Take a look and let me know what you think.

See the Download->AccuRender Studio menu items for more details.

Views: 2462

Reply to This

Replies to This Discussion

I'm still mulling that one over.  I took it out because it's very confusing to people about when to use mapping or when to use a local transform in the material-- and how the two interact.  I can put a rotation back in pretty easily, a lot of other rendering packages include this ability.

BTW-- how many passes (Samples Per Pixel) were reported in your farm rendering?  I ended up with 5351 on my 1 hr x 32 core cloud rendering.

7302 SPP - 40 minutes on 80 cores.

I got the decals working, but if I then edit one of the materials, the decals disappear when the model reloads. If I then close ArStudio and re-launch it, they're back again.

I'll give that a try later this morning.  I may ask for more details or a model next week.

Posted build 0085 which addresses this.

Everything seems to be working fine now, except that spotlights don't glow. In other words, the light source is not visible.

It seems to be connected to the beam angle.

Two factors will affect how bright the lights appear.  The angle that you're looking relative to the beam angle, as you've already noticed.  The smaller the beam angle the less bright the light will be at glancing angles.

The other factor is the size of the light, in particular it's area.  Decreasing the radius of disk by a factor of 2, for example, will cause the surface brightness to increase by a factor of 4.

This is where glow would be useful.

I've noticed that the beam angle in AR Studio is double the value in nXt.

Is that because nXt is reading the angle from the vertical whereas Studio is reading the angle across the whole beam?

This would explain why the spotlights virtually disappear at a beam angle of 25.

The actual angles internally are the same-- nXt just expresses it as a half angle.

Glow is actually a really big cheat.  It's a light that appears when we look directly at it or see it in a mirror.  Which begs the question of what happens when we see it in a glossy surface?  In nXt I cheat by reducing the effect as the surface becomes more diffuse by some arbitrary amount.  I'm no longer willing to do this in the current engine-- anything that glows is a light source.

However, nXt spot lights had a setting called "diffuse" (I believe) which allowed a portion of the light to be transmitted diffuse (beam angle = 120).  This could accurately model a recessed fixture where there is some diffuse leakage due to reflection from the can.  I can add this back pretty easily-- it's really just a more complex distribution.

You can see from these photos that distant spots look just as bright as the close ones:

However with ArStudio the distant ones are dimmer because of the viewing angle:

I agree that what you say is technically accurate, but in the real world it doesn't actually work that way

They're quite a bit dimmer in the photos-- you're also probably seeing the sides of the cans in the more distant ones.  Like I said, I can do a more complex distribution from the light that will mimic this-- I can even draw a diagram of the distribution in the interface and have the default include some of this leakage.  What I can't do it cheat.  (I will check and make sure my calcs are correct before embarking on any of this-- it's also possible that I've made a mistake here, either in the basic translation-- or in the interpretation of nXt's beam angle.)

RSS

Search

Translate

Latest Activity

Ben Mixson replied to Brittany Watson's discussion Groundcover Issues
"Hi Brittany, I have two different plant editors. The Accurender plant editor that installed with Accurender Studio and the NXT plant editor that installed with NXT for Autocad. Only the NXT for Autocad version lets you open, modify, and save…"
Friday
Brittany Watson posted a discussion

Groundcover Issues

Hello,I am hoping to get some clarity on how to modify and add groundcover. I have searched everywhere on the forum and online to find how to save a plant as .ArGroundcover, but I cannot find anything. I am using AccuRender Plant Editor and once I finish editing the plant that I want to use as a groundcover, I click "save plant as", but all it allows me to save as is .ArTree. I have a deadline to get this render finished, but I cannot for the life of me figure this out. See More
Friday
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"Thanks, I'll check on the first two.  The third is normal behavior-- data conversion stops when the arstudio data is detected.  There is a command to remove the arstudio data which would allow you to start from scratch-- probably not…"
Apr 19
Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"Two things don't seem to translate from nXt: Procedural bump and orientation of texture in a material.   Also, if a decal is changed using nXt, Studio continues to display the original decal. Editing the decal in the Studio material pallet…"
Apr 19
Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"That sorted it - using the Studio camera and then selecting "Get AutoCAD view"."
Apr 19
Roy Hirshkowitz replied to Roy Hirshkowitz's discussion AccuRender Studio
"Interesting.  ArStudio has its own WalkAbout-like feture, it's the little camera button.  If you do it while the preview is running you should see the view changes automatically in the rendering."
Apr 19
Peter Milner replied to Roy Hirshkowitz's discussion AccuRender Studio
"I'm having trouble getting the desired view in Studio. I've tried setting the view in nXt walkabout and then using that to set the AutoCAD view. However, when I render from Studio, it gives me something different (see images below)."
Apr 19
Roy Hirshkowitz replied to Peter Milner's discussion Multiple cores
"There should be an Update Manager in the Start menu.  Grab and install 0267.  If this doesn't work I'll send a link."
Apr 16

© 2021   Header image courtesy Peter Milner   Powered by

Badges  |  Report an Issue  |  Terms of Service