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Forums >> Revit Building >> Technical Support >> Rendering question

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Wed, Feb 11, 2009 at 10:48:16 AM | Rendering question

#1

diesellam


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Joined: Tue, Jan 20, 2009
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I played around the Revit rendering little bit and found it quite easy to set up.

The only downside is that it takes too long to render but the result is quite good given the fact it doesn't take long to set up.

Only question I have is that how do you get rid of the "wash out" effects within the ligth fixture?  (Please see the attached PDF file.)  I like the overall "lighting effect" in the image but not the "wash out" effect.  How do I do that in Revit without going to fix this in Photoshop?  Do I have to do it in 3d Max Design 2009 for things like this?  Thanks in advance.



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Wed, Feb 11, 2009 at 10:59:43 AM | Rendering question

#2

jdivina


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Joined: Fri, Sep 12, 2008
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dunno how to fix your problem but i kind of wnated to know to  cuz i have had problems with the artificial lighting in revit rendering also

my lights don't seem to light actually

and when i use the sun its crazy white

 


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Wed, Feb 11, 2009 at 12:44:53 PM | Rendering question

#3

KingRevit


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Joined: Mon, Oct 15, 2007
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2 answers

first my standard answer, revit isn't really that great at rendering us 3d max if you can afford it and know how to use it.

otherwise use photoshop to solve these problems.


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Wed, Feb 11, 2009 at 5:12:11 PM | Rendering question

#4

shaun_kiwi


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You can change this by adjusting lighting levels in light fixtures and lowering the light level. (never tried this but will be able to manipulate somehow)

Put a glow to your diffusor that better represents the correct glow. Can do this with good effect.

Use a studio light which is just a light emitter and is available from either revit defaults or Mr spot has one on this site. Use this to bring up the light level elsewhere in the model where you need it.

I find it is a total manipulation. If you have the sun on as well then I have found I need to raise the light level 10 fold in each fitting for them to perform correctly. Manipulate til you get what you want. It is a bottomless pit. You can constantly improve it. I have found that it is better to adjust the light levels than to mess around with the 'Adjusting Exposure' settings in revit or playing with it in photoshop after the fact. It is better to get it right there and fine tune using those other methods. So use the default settings in 'Adjust Exposure' to begin with til you get it about right. Took me ages to know what to expect.

Use a scope box to cut down the lights the rendering engine conciders. This reduces the rendering time and you can use it to cut 3D sections.

Either export image or print as a PDF from a layout. open in photoshop and manipulate further then load back into project. You should be able to blow it up in size in revit again. Play around with exporting and importing onto sheets. This might tell you that you are rendering far too big an images.

Reduce the size of the image on screen reduces rendering time. And only render on the highest setting if you have a wall of machines or are going on holiday. We find medium to high is normally enough detail for our clients.

Bon appetite


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Wed, Feb 11, 2009 at 6:08:09 PM | Rendering question

#5

diesellam


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Thanks for all of the response.

When you said, "adjusting lighting levels in light fixtures and lowering the light level....", which specific setting would you tweak?  Please see the attached PDF file of the screenshot.

When you said, "Use a studio light which is just a light emitter and is available from either revit defaults or Mr spot has one on this site......", where did you exactly find it to download it?  Would you mind to elaborate more on it?  Thanks.

For the one I did, I only used "interior: artificial light" and no sunlight since this is an interior shot without windows.

I left everything as default setting except I tweaked the "auto exposure" setting in the render dialog box.

 



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