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Mon, Aug 10, 2009 at 8:08:31 AM | Revit 2010 to 3ds Max Design 2010

#1

Timalez


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Ok.  I am slowly but surely fumbling my way through this but this new way of getting into render mode is presenting itself as quite a challenge.  Please know that we use to render via cadd "file link manager" to Viz.  A bit archaic but it was predicatable and timely. 

Here is what I am up to now:  Export from Revit via fbx file then Import into 3ds.  This works ok, but heres what I am struggling with...

A small Revit mental ray rendering took four hour w/o RPC's.  Exported to 3ds and nearly the same size, the rendering really was not faster than Revit.  The huge let down was that the 3ds rendering also seemed less intuitive, as some material maps/textures had been re-interpreted into something that was not as nice as the rendering from Revit (i.e. specular levels, scaling).   Lastly, in an effort to expedite some test renderings in 3ds, I switched the renderer to "scanline" and was mystified to find out that the scanline renderer is not recognizing any of the imported model.

 It should be noted that my test file for this is an interior rendering.

 Thank you in advance for any insight that you can offer.


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Mon, Aug 10, 2009 at 11:55:39 AM | Revit 2010 to 3ds Max Design 2010

#2

alabaster2513


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My advise would be to use your online resources to enhance your 3ds workflow, here are some helpful links

 

http://area.autodesk.com/

 

http://resources.autodesk.com/Architecture/Revit_Architecture/How_Tos

 

I would never even consider using the old scanline renderer in max anymore, it is dated technology. Mental Ray is far more superior. It's the same concept as Vray, you must use Mental Ray materials in order to render. Research FG+GI in order to perfect your interior scenes. My render times comparing Revit to Max I see times that are a fraction of the time in Max. Also I am able to utilize Direct3D and ambient occlussion to get a much better scene.



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Mon, Aug 10, 2009 at 2:02:15 PM | Revit 2010 to 3ds Max Design 2010

#3

Timalez


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alabaster!

Thanks again.  I agree about the scanline but I couldnt figure how to get the rendering out of the machine faster...  at least now I know its not an option.  I did the same rendering test again today and the 3ds did manage to come out faster but I changed my shadow settings to "adv. ray trace".  My next objective is to try to figure why the carpet got beat up on the export to 3ds....  Thanks for the direction.



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Mon, Aug 10, 2009 at 2:12:15 PM | Revit 2010 to 3ds Max Design 2010

#4

alabaster2513


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whoa! you are having some issues for sure. Are you using the photographic exposure control in your enviroments and effects?

 

also if you are trying to speed things up, burn your final gather and global illumination to an external file. this greatly reduces render times.



Edited on: Mon, Aug 10, 2009 at 2:13:27 PM

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Mon, Aug 10, 2009 at 4:18:13 PM | Revit 2010 to 3ds Max Design 2010

#5

Timalez


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ok, now I am getting somewhere.  I can still do some tweaking to manage that super hot exterior light that came in with my revit model but I feel comfortable that this is a scene I can manage.  Great tips and great help!  Sincere thx.



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Mon, Aug 10, 2009 at 4:46:18 PM | Revit 2010 to 3ds Max Design 2010

#6

alabaster2513


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are your lights on in that scene? still looking a little under exposed. Also try exporting to PNG then you can open it in photoshop and erase the alpha channel which is the exterior mental ray sky that is blown out. look at the image i attached. here I deleted the alpha channel and replaced it with a sky jpg

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Tue, Aug 11, 2009 at 9:40:37 AM | Revit 2010 to 3ds Max Design 2010

#7

Timalez


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Nice rendering, your carpet is coming in nicely.  I still have some issues with overexposure on the carpet in my scene, but I am getting closer.  I selected the sky light and cooled it off but I could not find an "exclude" option for this light.  I am sure it is nested somewhere.

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