topic Art.lantis Creating lights in Visualization

Art.lantis Creating lights

Thu, 11 May 2023 11:01:50 GMT

I am working in a project, that requires lamps of alogen in an
area and another one of the same space lamps of 3500K, white light,
for offices. My doubts are:

1. To create the luminous effect that arrives until the floor, but
I can´t get that result.

2. The ceiling is white (texture). but it appears almost
black dark gray. What do you suggest to do in this case?

thanks

Re: Art.lantis Creating lights

Anonymous — Fri, 07 May 2004 22:35:02 GMT

You need to add fill lights in addition to your actual light fixtures. These are to simulate the light that bounces off the various surfaces and illuminates areas that are not directly lit. High end renderers such as Cinema 4D accomplish this by using what is called a radiosity solution. This is not the same as ray-tracing (which Artlantis does and ArchiCAD does not) which calculates images reflected in shiny surfaces but has no illuminating effect.

Lights in ArchiCAD can be quite tricky (at least I have found them so) so you may have better results in Artlantis (I haven't used it for interiors myself so I can't say from first hand experience).

If you expect to be doing a lot of high end interior rendering you might want to consider something like Cinema 4D.

Re: Art.lantis Creating lights

Karl Ottenstein — Sat, 08 May 2004 16:53:30 GMT

To add to Matthew's reply... Take a look at the (many) tutorial files that come with Artlantis and observe how those lights are set up. Even the file that is used for align view - fitting a building into a scene - has a fill light as I recall to light the undersides of the balconies.

Fun stuff.

Karl

Re: Art.lantis Creating lights

Djordje — Sat, 08 May 2004 18:21:23 GMT

David wrote:
1. To create the luminous effect that arrives until the floor, but I can´t get that result.

2. The ceiling is white (texture). but it appears almost
black dark gray. What do you suggest to do in this case?

Aside from fill in lights, try Global illumination; that is practically fake radiosity algorithm, that does work well in lighting up ceilings.

Don't try to place the real lights in Art•Lantis; you have to fake in order to get it right. For the real analysis, find an old Lightscape somewhere, or try to get ArchiLumos.

Re: Art.lantis Creating lights

Mon, 10 May 2004 22:19:38 GMT

Which I am doing is to take like reference some examples from the manual (artlantis) And now I´m placing indirect lights to illuminate the ceiling, and it works. I also made this creating a new sun, but it burns all the textures. so I prefer the indirect lights are more soft. For the lamps of 3500K rectangular. I have placed two center omni light one in each end. and I have created the wished effect. I don´t know how long do I take to resolve these problems, if graphisoft doesn´t make this forum thanks to
Matthew, Karl and Djordje for its wise contributions. Thanks for your helpful tips.

Have a nice day

Re: Art.lantis Creating lights (new changes)

Fri, 21 May 2004 00:36:13 GMT

I found a better way to create more lighter the ceilling. faking with suns, I delete all the lamps. And create new suns, some from floor to ceilling and opposite. And it looks better than the lamps.

Re: Art.lantis Creating lights

Fri, 21 May 2004 00:41:26 GMT

for the lamps I put the shader of neon, and it seems like its on.

Re: Art.lantis Creating lights

Fri, 21 May 2004 00:44:48 GMT

For the billboards, I have one question Can we make BB´s of things, not just people. for example, books, paints, decorative articles?

Re: Art.lantis Creating lights

Anonymous — Fri, 21 May 2004 06:52:39 GMT

It's a very simple. If for peoples, trees etc. in *.bb file You must use "UNIFACE" in section Behavior Name, that for books, pages, etc. You use "FLAT".

Best regards
Pawel

Re: Art.lantis Creating lights

Tue, 25 May 2004 00:05:14 GMT

Pawel, can you be more explicit. It which program do I need to make these?

Re: Art.lantis Creating lights

Anonymous — Tue, 25 May 2004 17:37:02 GMT

Hi, at last time I was create more than hundred billboards and shaders for Artlantis. Some sample are available on my web site.
All billboards are creating for PC platform (with Paint Shop Pro, KnockOUT and Artlantis main program. For exchange parameters in *.BB files I use notepad build in windows).
I don't know MAC system, but I think You may use any text editor for edit *.bb files on the MAC machine.

If You want to create one face vertical billboard use -> UNIFACE.
If You want to create multiface vertical billboard use -> MULTIFACE.
If You want to create one face horizontal billboard (eg. carpet, picture, etc.)use -> FLAT.

Re: Art.lantis Creating lights

Fri, 28 May 2004 00:00:24 GMT

Pawel, I appreciate your commentaries. but maybe I don´t need to do these steps. I have the billboardbuilder, http://perso.wanadoo.fr/billbobuilder/ the price is very cheap $20dlls, aprox but the only problem is that was only on french, the solution the tutorial is on english, and explained very easy.

PS. what is your website?

Regards,

David Welsh

Re: Art.lantis Creating lights

Anonymous — Fri, 28 May 2004 08:27:17 GMT

Hi David,
yes You may use BILLBOBUILDER beacouse you're working on MAC machine (BILLBOBUILDER is still available only for MAC). I don't know this program but my friend Rafal Sleek from Studio-Arkda (http://www.studioarkada.com) tested this and told me that is good choice for less money.
I working on the PC so I can't use this.
If You want create own Billboard still I get You some advice:
- Artlantis don't like antialiasing from photo editors. If You cutot motif from photography turn off antialiasing option. You must get sharp edge between motif and cutout background.
-Save mask to alpha chanell (*.tiff, *.tga), You can use next your billboard motif to improve renderings witch Photoshop or other photo editor by cutout backround by mask. (Billboards are not transparency, You can add transparent trees in Photoshop).

My web site is http://www.osarchitekci.republika.pl, for this time only in polish. You can visit the ArchiCAD section, where I publish some samples of my shaders and billboards (not billboards to use).

Best regards
Pawel