How to backlite a box on wall

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Permalink Reply by Mike Halls on July 18, 2012 at 4:54am

Hi Larry

I have used this technique in the past for the sort of effect you describe.

Stick a spotlight with a very wide angle beam on the back of your box, aimed at the wall.

You can adjust the wattage etc or put it in a lighting channel and adjust post render.

PDF attached describes, not sure if this is exactly the effect you want but it may be a start point for you to experiment.

Regards

Mike Mesh-3d

Attachments:

• ligt box.pdf, 156 KB

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Permalink Reply by Larry Goldberg on July 18, 2012 at 8:53am

Mike,

 

exactly what i'm tryign to do.  And I did try something similar with a square fixture and it didn't work.  just tried it your way, still no luck.  turned the fixture 180 degreees to make sure it wasn't backwards, still no luck.  attaching the file, must be doing soemthing really basically wrong.  appreicate any guidance

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Permalink Reply by Mike Halls on July 18, 2012 at 9:32am

Hi Larry

Attached the sketchup file I used to produce the effect.

Also a PDF showing the light and render presets.

Note - Render 'Int no sun.'

Also it will take , say, 40+ passes to get the full effect.

Also note the beam does not touch the wall, I think this makes a difference.

Try rendering my model and you should reproduce my image.

Good luck

Regards

Mike - Mesh-3D

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Permalink Reply by Larry Goldberg on July 18, 2012 at 9:37am

nothing was attached

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Permalink Reply by Mike Halls on July 18, 2012 at 9:39am

Hi Larry

The upload is failing for some reason.

Click on my name and add me as a friend and I will

private message you with the files - that usually works OK

Cheers

Mike

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Permalink Reply by Larry Goldberg on July 18, 2012 at 9:43am

nothingn was attached.  also, how do you adjsut it so teh beam does not touch the wall?  Tryign to attach my test file again

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Permalink Reply by Richcat on July 18, 2012 at 2:08pm

Try the skp file as a zipped file to attach it

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Permalink Reply by Mike Halls on July 19, 2012 at 3:07am

Hi Richcat.

Thanks for your suggestion.

I don't think its a size problem. I was only trying to upload a 300Kb PDF and a 250Kb SKP file.

It just seemed to hang for a while then uploaded the text without the attachments.

Anyway sorted now me and Larry exchanged email addresses and I sent the files by email.

Thanks again.

Regards

Mike

Richcat said:

Try the skp file as a zipped file to attach it

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