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Wed, Jun 17, 2009 at 10:27:26 AM | Hardware and rendering

#1

woodb


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Joined: Wed, Jun 17, 2009
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Hi,

My PC is crashing when rendering to high quality, 300 dpi from Revit 2009. PC spec as follows: Dell Precision T3400, Intel Core Duo CPU with 3.0GHz speed, 4Gb RAM. Graphics card NVidia Quadro FX1700 512 Mb memory.

I have attached my desired render in low res - as you can see, it's an external shot so I wouldn't have expected it to cause Revit to die. Any recommendations for upgrading hardware or should current spec suffice? Do I need to go to 64-bit version?

 

Any help much appreciated.

Thanks



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Wed, Jun 17, 2009 at 1:31:16 PM | Hardware and rendering

#2

travistlo


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Joined: Tue, Nov 20, 2007
64 Posts
5 Stars: 2 Votes


300dpi at what size? The RAM requirments change drastically if its 8 1/2 x 11 or 24x36? the 300 DPI might be too high for a render straight from Revit.

Try turning on the 3gb switch since you are a 32 bit OS.

http://dwf.blogs.com/beyond_the_paper/2009/04/enabling-3gb-switch-on-windows-vista.html


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Wed, Jun 17, 2009 at 1:39:43 PM | Hardware and rendering

#3

erland73


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Joined: Fri, Sep 7, 2007
738 Posts
4.5 Stars: 85 Votes


Have you installed the RAC 2009 Web Update 3 Service Pack?

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 “Learning never exhausts the mind.” Leonardo Da Vinci 

 

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Wed, Jun 17, 2009 at 2:16:31 PM | Hardware and rendering

#4

blackhawk


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Joined: Thu, Jun 15, 2006
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3.5 Stars: 3 Votes


I would suggest not even rendering with high quality with a model like that, no offense. There isn't too much detail and the camera is so far away, being a sectional perspective, you may not even notice the different levels of quality. Try region rendering 1/4 of the image to determine if you notice a grave difference in quality. I always like to work my way up from low to high to determine if the time is even worth the effort.

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Wed, Jun 17, 2009 at 3:58:48 PM | Hardware and rendering

#5

woodb


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Thanks for the feedback guys, I will look into your suggestions. In the meantime, can anyone explain why there is a quality level (low, medium, high) AND a dpi count - surely increasing the dpi automatically increases your quality - why have two different settings. Also, I'm still not sure why my render is crashing at 300dpi since the view is not overly complex with regards to materials/lighting etc. - why then does Revit give the option to go to 600dpi if 300 is a problem?


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Wed, Jun 17, 2009 at 5:35:37 PM | Hardware and rendering

#6

blackhawk


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Joined: Thu, Jun 15, 2006
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3.5 Stars: 3 Votes


quality is light bounces, shadows, reflections etc.

dpi is strictly image size (usually affects textures)

 

If your dpi is higher than you computer can handle (available RAM) it will crash. Quality affects rendering time. If your machine can handle 600 dpi Draft, it can handle 600 dpi High, just will take a lot longer. Check your image size by selecting your crop view region of your camera. Always use cameras when rendering so you can control your image size; don't render from your "3D" view. 


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