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andym323
11-26-2008, 04:47 AM
Hi everybody,

Doing an interior scene with fluorescent tube lighting and i'm trying to find some IES data for them. The tubes are Sylvania 70W white :)

Anyone else used IES data for tubes? Any tips would be great :D

Cheers all

Andy

andym323
11-26-2008, 05:03 AM
And while I'm on the subject, check out the pic below, notice the bright line along the lamps where the meet the ceiling, I'm having trouble getting rid of it, it should after all be a shadow, its not light spill I'm pretty sure as there are no lights in them yet??? :S

Any ideas???

http://img.photobucket.com/albums/v244/andym323/NEW_test3.jpg

Matt
11-26-2008, 06:28 AM
What's your Radiosity intensity / bounces? The bleed on the blue post onto the ceiling supports suggests one or the other _might_ be high, resulting in colour bleeding.

One trick to get more light in without having to crank up radiosity, is to put your glass onto a different layer in your model, and in Layout set the glass object layer to not cast shadows (object properties > render tab)

flakester
11-26-2008, 06:38 AM
Hi everybody,

Doing an interior scene with fluorescent tube lighting and i'm trying to find some IES data for them. The tubes are Sylvania 70W white :)

Anyone else used IES data for tubes? Any tips would be great :D

Cheers all

Andy

I had a quick butchers around the Osram Sylvania site - seems as though they only list .ies files for certain bulbs, pretty randomly.

flakester.

andym323
11-26-2008, 06:47 AM
Thanks Matt, I've just read this.... http://www.except.nl/lightwave/RadiosityGuide95/index.htm kindly provided by Ben Vost, interesting reading :) You're right though, I'll make some adjustments :)

flakester, yeah, I did a tour of their site this morning, pretty random stuff isn't it, I've emailed them to see if they have any data they can send, if they do, I'll post it here for all to use :D

biliousfrog
11-26-2008, 07:33 AM
Have a look here...Loads of IES data to search through :)

http://forums.cgsociety.org/showthread.php?f=5&t=663754&highlight=ies

andym323
11-26-2008, 10:57 AM
Thanks bilious :D

Ben called me while I was on lunch and pointed me in the direction of this fab little plugin by the guy Newtek consulted on the photometric lights for 9.5..... http://www.lwplugindb.com/Plugin.aspx?id=7f36e335

I'm just having a play with the tube light included and it looks like its going to do the job nicely, the only drawback being I have 20 to put into the one room alone :O which seems to be having a rather adverse effect on my render times :( Big up to Ben though :D

MooseDog
11-26-2008, 12:40 PM
...Ben called me while I was on lunch and pointed me in the direction of this fab little plugin by the guy Newtek consulted on the photometric lights for 9.5.....

that's a pretty tasty little tidbit there, consulting denis on lw programming, if it's true and continues, would be a major bonus.

BeeVee
11-26-2008, 01:58 PM
They didn't really consult Denis on the Light SDK there Andy, that's not what I said! :D However, he was the first one to pounce on the SDK and produce those fantastic lights, swiftly followed by Pomfried.

B

MooseDog
11-26-2008, 02:47 PM
They didn't really consult Denis on the Light SDK there Andy, that's not what I said! :D However, he was the first one to pounce on the SDK and produce those fantastic lights, swiftly followed by Pomfried.

B


pfffttt...there goes my thanksgiving joy. thanks ben.


(j/k :) )

andym323
11-27-2008, 02:09 AM
They didn't really consult Denis on the Light SDK there Andy, that's not what I said! :D However, he was the first one to pounce on the SDK and produce those fantastic lights, swiftly followed by Pomfried.

B


Sorry chap, got the wrong end of the stick there :P They are great though :D

andym323
11-27-2008, 05:08 AM
Here's a new view of the main room, with Denis' tube lights, I love the shadows on the back wall, not so in love with the noise though. There's a slight issue with there needing to be 20 tubes lights in here, plus the 3 uplight spots that will be on the left hand wall eventually, render time for this image was about 20 mins, I dread to think what sort of time I'm going to be looking at once the furniture etc has been added! :O

http://img.photobucket.com/albums/v244/andym323/NEW_test4.jpg