Photometric light setup?? Please help.

[Dorian]

OK, I searched the forum, and everywhere i see "turn photometric lightning on", so i turned it on, and i have no light.

I tried changing from candel to lux etc. with different values all the time, and i still dont have light,

i downloaded some of users drawings to see how its set, but when i open it, it doesn't have lights.

 

If anyone can give some guidenes of seting this up, i would be very thankfull.

[Cad64]

http://www.dailyautocad.com/render/autocad-2008-render-photometric-lights-1/

http://www.dailyautocad.com/render/autocad-2008-render-photometric-lights-2/

 

This is for 2010, but may still be applicable: http://docs.autodesk.com/ACD/2010/ENU/AutoCAD%202010%20User%20Documentation/index.html?url=WS1a9193826455f5ffa8c31b10ee9da4728-7e3f.htm,topicNumber=d0e175871

 

And remember, you can hit F1 and check the Autocad Help files for information too.

[Noahma]

I have learned that you will have to turn up the intensity if you have the sun and sky on. start with 50

[Lazarus]

Dorian,the links that Cad64 posted should be very helpful to you.In addition i'm posting this file which contains 30 .IES files that are suited for interior renders.:wink: You can choose any one of them and attach them to your scene.You can also search for a program called IES Viewer wich can come in handy especialy when you have a ton of IES files for easyer viewing.

ies.zip

[Dorian]

OK Laze, this is your drawing. i set the lights to photometric and i don't have light. Download it and set them as they should, and upload it again if its not to much trouble, cause i've tried everything and it doesn't work out for me. Maybe I'm not smart enough to see the real problem here:D

proba.zip

[Lazarus]

Smart has nothnig to do with it.Only practice.Here you go....if you have any more questions feel free to ask.

proba1 - Standard.zip

[Dorian]

now that was a lot helpful, thank you very much, i busted my ass to figure this thing out.

Thanks again.

[Dorian]

Smart has nothnig to do with it.Only practice.Here you go....if you have any more questions feel free to ask.

 

OK, i tried this on my file and it doesn't work. I copied the lights from your drawing to mine, and in my drawing it doesn't work. Are my layers not set as they should or something else i don't know, i tried the autocad help and did the same and i still don't have light with photometry. So if anyone can help me out on this i would appreciate it very much.

[Lazarus]

I've never copied lights from another drawing so i can't tell if that's why it's not working for you.As far as i'm aware lights are not dependent on layers or layer states.Try this procedure and tell me if it works:

1.Make sure you have your "LIGHTINGUNITS" set to 1(or 2)/or from the menu Format-->units/lighting submenu(choose international).This enables the use of photometric lights instead of generic lights.

2.Lets say you know the position where you wanna place your lights.Create a point light on that position.Make sure you go to it's properties and change the type to Web light.Further down on the properties menu there's a photometric web submenu where you can choose your web(.IES) file.Click on the icon to browse for your file and attach it to your scene.

You now should have your photometric lights in your scene.If you still can't see the lights try and increase the intensity to say 10 or 20 or maybe higher.

[Dorian]

that's just what i were doing the whole time, and i still don't have light, that's why i have this problem. I set the lightinunits to 1, than create a light, make it to web, browse one of the files, increased the intensity starting by 1, than 10, 100, 1000 and i still dont have light.

[tzframpton]

set DEFAULTLIGHTING to 0.

[Lazarus]

Yes,Stykface is right.In order to use user lights(photometric in this case) you need to turn of default lights.But that is done automaticly when you try and place your first light,cause there's a pop up window advising you to turn off default lighting(recommended setting).That's why i didn't mention it here.In 2010 however the photometric lights display just fine no matter if you have DEFAULTLIGHTING set to 0 or 1 which is strange.

[Dorian]

defaultlighting is set to 0. still no light:(

[Lazarus]

Dorian,i really don't have a clue what could be the problem.The drawing that i sent you worked for you so it's not a graphic card issue.Are you trying to place lights on a scene which you created before that already has some lighting?

[Dorian]

i was drawing, and placed lights, and they were not photometric, than i chaged from generic to photometric lights and everything goes dark, than i go

LIGHTINGUNITS - 1

DEFAULTLIGHTING - 0

make the lights WEB, attach .ies file on the light, adjust the intesnity(the actual setting on your drawing) and everything is still dark. I just can't find the problem.

I can't upload a file nor put a link for you to download the file so you would see the problem, so i just don't know what else i should try.

[Lazarus]

Why don't you try this.Make a test scene....Create a new drawing,create a room with no windows(just a hollow box).Make sure your "lightingunits" is set to 1.Create a point light,at the prompt choose to turn off the default lighting( recommended setting).Place the point light on a proper location so it can light the room(closer to a wall preferably cause the 30 photometric lights that i've sent you are downlights(halogenki).Now make that point light a web light and attach a .IES file.Place a camera inside the room and render the scene.

That's what i do and everything looks fine.Again if it renders black bump up the intensity.

[Dorian]

Ok, that doesn't work too, maybe if i could attach a little bigger file than 250kb, or post a download link maybe we could have found a solution for the problem, i just don't know where i'm doing wrong, i wish i did.

[Dorian]

ok here's what i was doing the whole time:

i copied and pasted older files here from work, which were 2d, and than converted to 3d, deleted the old drawings except the base, and raised 3d from them. So the generic lights worked just fine, but the photometric didn't work at all(still don't know why).

 

Here's what i did now:

 

Opened a new acad 3d file, and started drawing and changed the lights like you told me too, and in the end god said LET THERE BE LIGHT:D:D and there was light.

 

now that's a relief.

[tzframpton]

Ok, that doesn't work too, maybe if i could attach a little bigger file than 250kb, or post a download link maybe we could have found a solution for the problem, i just don't know where i'm doing wrong, i wish i did.

*.ZIP the file. That reduces it pretty good and then upload it.

 

EDIT** NM looks like you got it. Light won't show up if there's nothing 3D in the drawing. Just FYI.

[Dorian]

ok, here's what i get using photometric light. Eerything became kinda blury. What do you suggest doing now.