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Downlight Illumination

16 ANTWORTEN 16
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Nachricht 1 von 17
Anonymous
1737 Aufrufe, 16 Antworten

Downlight Illumination

Illumination of downlights (recessed can type) seems very low when rendering, is it supposed to behave like this?Untitled.png

16 ANTWORTEN 16
Nachricht 2 von 17
barthbradley
als Antwort auf: Anonymous

Something doesn't look right. Those like the hole created by the cans, not lights.   Turn on the light source category in consistent colors view. See the light geometry? 

 

Post your file here. 

 

...play with the Exposure Control Settings post Render.

 

AE.png

 

EC.png

 

 

Nachricht 3 von 17
ToanDN
als Antwort auf: Anonymous

Choose a correct Lighting scheme before render, for example: Interior: Sun and Artificial or Interior: Artificial only.
Nachricht 4 von 17
barthbradley
als Antwort auf: barthbradley

Ah! Uncheck Self Illumination under the diffuser's Material (on Appearance Tab).    

 

...Ah #2!  Check the light switch. Is it on?  

 

Switch.png

 

Just being silly.  :zwinkerndes_Gesicht:

Nachricht 5 von 17
Anonymous
als Antwort auf: barthbradley

Self illumination did not work.

Nachricht 6 von 17
barthbradley
als Antwort auf: Anonymous


@Anonymous wrote:

Self illumination did not work.


 

What material assets are assigned to the family's geometries?  Can you capture and post picture of the Appearance Tab settings of the Materials be used?  

 

Did you try adjusting exposure settings? 

Nachricht 7 von 17
Anonymous
als Antwort auf: barthbradley

Untitled.png

 

Somehow I got it to work by editing the family and lowering the light source from the can. I think it had something to do with the hosting because I separated the lighting from the arch/struct file and linked them. The lighting fixture wasn't cutting through the hosted ceiling causing the ceiling to block the light source. The problem now is that it looks unrealistic.

 

Untitled.png

Nachricht 8 von 17
barthbradley
als Antwort auf: Anonymous

Turn the Light Source on and verify it is pointed downward.  

 

Recessed Can.png

Nachricht 9 von 17
barthbradley
als Antwort auf: Anonymous

It would be so much easier and faster to troubleshoot if you could post file.  

Nachricht 10 von 17
Anonymous
als Antwort auf: barthbradley

It is pointed downward.

Untitled.png

Nachricht 11 von 17
barthbradley
als Antwort auf: Anonymous

So, you don't want to just post the file?  You'd rather ping pong this?  Well then, I'm out.  Goodnight and good luck.   But hey, hang in there. With enough back and forth, you're bound to get lucky eventually.  

Nachricht 12 von 17
Anonymous
als Antwort auf: Anonymous

Light source has to be outside of modeled elements.  So I don't put a lens on my downlights and I make the inside the can a reflective material.

Nachricht 13 von 17
barthbradley
als Antwort auf: Anonymous

@Anonymous: Seriously? That was the solution? Put the Light Source outside of the modeled elements, eliminate the lens, and make the inside of the can a reflective material?  Say what?! 

 

 

Nachricht 14 von 17
barthbradley
als Antwort auf: barthbradley

FWIW: I'm not impugning @Anonymous suggestion. I too have used the "if thy eyes offend the, pluck 'em out" approach.  I have even gone as far as removing the family geometry entirely, leaving only the light source visible in the rendered view.   I call it the "if you can't beat 'em; f*ck 'em" approach.   

Nachricht 15 von 17
Anonymous
als Antwort auf: barthbradley

If the lens is kept, then the light source is outside of the lens, not on the other side within the can...that is why it wasn't working.  Since I want the light source within the can I get rid of the lens.

 

Years ago I went as far as creating a light bulb and placing the light source within it.  No matter how much transparency the light bulb had it wouldn't work.  So got rid of the light bulb element and ah.. Let there be light!!!

 

(Oh yeah.... @Anonymous is me.  I had to jump over to manage.autodesk.com and it switched all my windows over to my work account and I forgot to switch back)

Nachricht 16 von 17
barthbradley
als Antwort auf: Anonymous

Sorry, I’m not following. It sounds like you guys are saying to drop the light below the can geometry and delete the lens. That’s a hack job, not a solution. Like I said, I’ve been there as well. The “f*ck it, I’m tired of messing with it” approach. Also, if you got “light” without a light source, then it’s likely that what you were seeing was Self-Illumination Material effect – which has nothing to do with lights/settings.

 

Now, I don’t know what was going on in the OP’s case, but I’m absolutely positive I could have determined a real solution, not a hack, if the OP had posted the file to look at. It could be any number of things. Could be Materials. Could be geometry. Could be Photometrics. Could be geometry AND Photometrics (e.g. Spot Angle isn’t wide enough to "show" the can geometry). Could be the cans aren’t cutting a hole in the ceiling (or ceilings) and the lights are buried inside solid geometry. So on and so forth. Betcha I could come up with a list of 33, like Munkholm’s famous list of 33.

 

Whatever.

 

Cheers.  

Nachricht 17 von 17
Anonymous
als Antwort auf: barthbradley

I just tested it with the lens and without the lens...Either way it looked like...well, not what I wanted.  I had to tweak the light settings quite a bit for it to look decent.

 

I like the look without the lens and use the illuminating light material for inside the can so it doesn't render dark.

 

Oh...Munk didn't post the 33 Reasons it was Dave Jones...Think he grabbed it from Zoog.

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