IES files

For all the users of Twilight Render (V1 & V2), to ask questions and get started
Post Reply
zarnollistudio
Posts: 36
Joined: Wed Sep 04, 2019 3:11 pm

IES files

Post by zarnollistudio » Thu Nov 21, 2019 8:50 am

Hello everybody,

I would like to insert lights in a lights string.
Would someone can help me for choosing the right light.
I have chosen glass materials for the balls, but not all the balls have kept the material.
Something wrong for sure.

Many thanks in advance for your help.

Chantal
Attachments
test LAMPE SAPIN.jpg
test LAMPE SAPIN.jpg (486.87 KiB) Viewed 160 times

Fletch
Posts: 10902
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
SketchUp: 2013-20
Contact:

Re: IES files

Post by Fletch » Thu Nov 21, 2019 10:58 am

Any of the larger lighting manufacturers provide the IES file with their light fixtures on the webpage.
Visa Lighting is an example

Meanwhile, several IES files are provided with their light fixtures here on the forum:
Subject: 5 IES Spotlight effects (including SU model and IES files)

For Pro Users - (we are having a 50% off sale for Black Friday) you should definitely get the Lighting Components ready-made for Twilight.
Subject: Light Components for Twilight V2
Fletch wrote:
Tue Feb 08, 2011 11:27 am
Some say this program is the best/well programmed free IES viewer/converter
http://www.photometricviewer.com/

3rd party tool:
A Tool for IES lights called "GE Light*Beams 3.0" is for download here:
https://products.currentbyge.com/lighting-tools

Here are the free components (not IES, sorry) to help people learn to create their own light fixtures.
Subject: Can Light and 2x2 or 2x4 Standard Ceilight Light Components

Fletch
Posts: 10902
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
SketchUp: 2013-20
Contact:

Re: IES files

Post by Fletch » Thu Nov 21, 2019 1:45 pm

Hello Chantal,

Regarding the light string - you will need to accurately model the lights, it's not as simply as a sphere with glass applied. A light bulb is very thin glass, so therefore your glass will not act correctly.

On top of that, light bulbs technically make like from a light emitting surface of some sort - such as the filament of an incandescent bulb or an LED.

There are several techniques for achieving the look you are after. But placing a light object inside a glass sphere will result in exactly what you are showing in your example image, and not result in realistic-appearing results.

The easiest way (my lazy way) is to simply paint the sphere with a light emitting material and apply the light emitter template - set to fake so that it renders very quickly in Easy 1-7 settings, but renders properly in Easy 09 render setting.

Now your light bulb inside of the sphere will produce the light for the Easy1-7 render setting.

There are several other ways of doing this as well. But this is the easiest.

Fletch
Posts: 10902
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
SketchUp: 2013-20
Contact:

Re: IES files

Post by Fletch » Thu Nov 21, 2019 2:10 pm

quick test scene attached demonstrating some possibilities to get you started.
Attachments
christmas-light-string.skp
(314.32 KiB) Downloaded 10 times
christmaslights-Easy04.jpg
EASY 04 Rendering setting
christmaslights-Easy04.jpg (52.87 KiB) Viewed 150 times
christmaslights-easy09.jpg
EASY 09 Rendering setting
christmaslights-easy09.jpg (118.21 KiB) Viewed 150 times

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest