Art.lantis Creating lights

[#1]

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

[Anonymous]

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.

[Karl Ottenstein]

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

[Djordje]

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.

[#5]

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

[#6]

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.

[#7]

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

[#8]

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

[Anonymous]

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

[#10]

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