AccuRender nXt

advanced rendering for AutoCAD

How do you make a Visible Light Path?

For example, I would like to render a projector shooting an image onto a screen.

How do I show a visible beam of light from the projector to the screen?

Views: 436

Reply to This

Replies to This Discussion

My original reply only applied to nXt for SketchUp.

You can read it here:

http://forum.irendernxt.com/forum/topics/visible-light-paths

I am using Accurender NXT for Autocad version:1.0.329

Where is the "Lighting Wizard" tab?

Oops - Sorry - I didn't ready your original post properly. That beam wizard only works with SketchUp.

But the rendering properties will work in AutoCAD. You have to create your own geometry and material settings.

We are creating concentric cones with a translucent material, and adding bump maps to them for effect. The cones are all near the edge of the light beam from the spot light.

We create multiple cones - very close to the same size

Ant set the spot light beam and field angle to shine only inside of the cones.

Another way to do this is with volumetric fog:

http://wiki.mcneel.com/accurender/nxt/documentation/beyond/volumetr...

On a small scale using Path Tracer and Fog

This is one I did 3 years ago when fog was first introduced.

Peter, that's exactly what I've tried to achieve. Perfect stained glass window.

Wouldn't you mind to share your  know-how about this effect?

The stained glass window was modeled as a region and tagged as "Thin". The decal was applied with the following settings (the masking was to exclude the black from the transparency so that it would cast shadows:

Here are the fog settings:

I'll see if I can strip the model down to a size where I can upload it.

Having said that, I'm just re-running the render again and it doesn't seem to exhibit the same light beams. The original was rendered in January 2012 and I seem to remember some setting to do with particle size and density.

Path tracer, right?  This is still on the todo list for the Hybrid.  Turn the fog way up (Scattering) to make sure it's still working.

Yes it's still working. I just turned the scattering up to 0.1 and the result is very similar to the original.

Here it is after 2000 passes.

Se eu quiser usar Spot, jogando de baixo para cima, como faço?

Não achei configurações para fazer o Spot lançar luzes estreitas e longas através do nevoeiro!

RSS

Search

Translate

Latest Activity

Rich Hart replied to Paul Jackson's discussion Bricscad
"Unfortunately, we don't have a version that works with BricsCAD now, and that older trial version cannot be reinstated."
Jun 19
Alfons Akamp replied to Paul Jackson's discussion Bricscad
"Ich habe hier auch eine nxtrender Version für Bricscad 15. Die sieht anders aus, als die von Acad. Leider ist auch bei mir der Testzeitraum schon lange abgelaufen. Gibt es die Möglichkeit mir eine Testlizenz dafür zuzuschicken??…"
Jun 19
George Ioannidis commented on Chris Fox's photo
Thumbnail

Bedroom

"Another good rendering. Those two photoshopped reading lights are not looking good though. They don't follow the perspective, the left one is higher than the right one. Also, they are supposed to be turned on (judging from the light on wall…"
Jun 15
George Ioannidis commented on Chris Fox's photo
Thumbnail

Single Family Home

"Great image as always. I would just blur the tree shadow on the lawn to match soft shadows on the building. Nice blending of cut-out greenery. Excellent job."
Jun 15
George Ioannidis commented on Chris Fox's photo
Thumbnail

Railroad kitchen

"Very nice rendering Chris! The only thing that distracts me is the fruit bowl. It's too evidently pasted in PS.  Another thing (nothing to do with rendering) is the microwave above the stove. I would rather expect a cooker hood there."
Jun 15
akinlolu olugboji posted a discussion

trim and extension command

On AutoCad 2021.The trim and extension command works funny. I initiate the command then click the cutting edge (press entre) then click the lines I need to trim or extend.Now I initiate the command and as soon as I click the object selected trims or extend.  How can I correct this, it is really affecting my work?See More
Jun 14
Chris Fox posted photos
Jun 12
ebenezer attah koomson posted photos
Jun 3

© 2020   Header image courtesy Peter Milner   Powered by

Badges  |  Report an Issue  |  Terms of Service