Home  |  Forums  |  Downloads  |  Gallery  |  News & Articles  |  Resources  |  Jobs  |  FAQ  |  SearchSearch  |  Join  |  LoginLogin

Welcome !

167 Users Online (77 Members): Show Users Online - Most ever was 626 - Mon, Jan 12, 2015 at 2:00:17 PM



Forums >> Revit Building >> Technical Support >> Revit's Mental Ray issues

Search this ThreadSearch this Thread | Page 1 of 1 |

Fri, May 2, 2008 at 2:31:19 AM | Revit's Mental Ray issues




Joined: Fri, Jun 2, 2006
1 Posts
No Rating

I am updating the materials library at the moment to redefine materials maps per Mental Ray, but I cannot see a way to map an existing “render Appearance” material setting to an existing material – that is an utterly ridiculous oversight. It would seem at fist that you can – via “Render Material Based on…..“replace” “ at the top of the dialogue – but that only allows for Mental ray – presets!What if my libary is not based on Mental Ray materials or even Revit preset material list!?Dahhh!Also............It would seem as though a material properties has to be taken from the Mental Ray library presets for it to be defined as on the following:Ceramic Properties Concrete Properties Generic Material Properties Glass Properties Glazing Properties Masonry/CMU Properties Metal Properties Metallic Paint Properties Mirror Properties Paint Properties Plastic/Vinyl Properties Stone Properties Water Properties Wood Properties Transparency and Translucency I can’t replicate these properties unless I use “replace” for all materials – so once a material is created it is always locked to this set of “type” properties. ie. most of my materials under Render Appearance tab are based on "Generic" & that can't be changed without rebuilding them completely from the Mental Ray PresetsSeems like they’ve made some fairly large omissions in this version of Mentral Ray! – really starting to get me down!Can anyone answer this. is there some realation between Accurender library & Mental Ray. EG - if a materials was assigned a certain "preset" category in Accurender Library does it translate better to Mental Ray?

Attached Images


This user is offline


Fri, May 2, 2008 at 4:08:18 AM | Revit's Mental Ray issues


Mr Spot

site moderator|||
Mr Spot Avatar

Joined: Tue, Jan 13, 2004
2889 Posts
4.5 Stars: 91 Votes


For starters all standard revit materials will be automatically updated to their mental ray equivalent.  You can tell which ones by checking Identity Tab - Comments.  If it was updated it would be blank if not it will say "Rendering appearance not upgraded".  Unfortunately this is the case for any non standard material.

The Mental Ray system in Revit has been setup to simplify the process of creating materials for novices as much as possible.  There is of course the risk of over simplifying to the extent where it frustrates those who are familiar with Mental Ray...

Basically you will need to go through all you materials and update/recreate them.  I've already done this process for our 2000 or so materials.  Frustrating I know, but once its done its done and you can use transfer project standards to copy materials between projects or by copying objects with those materials applied across to get individual ones.  (I know this is stupid, but apparently they are working on a better solution).

The process works by selecting the most appropriate Mental Ray pre made material from the "Asset Library".  You then manipulate this material to what you require.

You cannot currently add to the "Asset Library".

Once you've been through this process you are going to be very easily create Photo real renderings from within Revit.  I posted one in the beta forums that had some great response, but unfortunately I am unable to post here as it is under NDA.  Trust me when I say its definitely worth the hassle.





Co-Founder | BIM Consultant | Software Designer  CryingB. Arch)

Xrev Revit API Addins | Revit Rants

This user is offline

View Website

Wed, May 14, 2008 at 8:39:02 AM | Revit's Mental Ray issues




Joined: Fri, Aug 17, 2007
4 Posts
5 Stars: 1 Votes

Pls Help.

I downloaded the revit architecture 2009 from cant access my rendering dialogue after installation.....whats happenning??

This user is offline


Wed, May 28, 2008 at 10:47:08 AM | Revit's Mental Ray issues




Joined: Mon, Jan 16, 2006
2 Posts
No Rating

me too i have the same problem

This user is offline

View Website

Mon, Jul 21, 2008 at 11:37:57 AM | Revit's Mental Ray issues




Joined: Tue, Jul 15, 2008
16 Posts
No Rating

So, let me get this straight....  the only way to save and reuse a material in 2009, is to set up a template file with all the materials in it, and transfer the project standards into your current project, or to copy an object from a previous project that already has the material????   This seems very stupid! 

 I am also not happy about the lack of background options.  Please tell me these are being fixed ASAP!  I would also like some procedure map options, similar to 'tile' in 3d max/viz, and a displacement option for realistic grass (or hair)...  if not, I am still forced to use Viz or Max.

This user is offline


Search this ThreadSearch this Thread | Page 1 of 1 |

Similar Threads

Thread/Thread Starter


Last Post


Mental Ray rendering questions

Revit Building >> Technical Support

Mon, Oct 13, 2008 at 5:37:55 PM


Can Revit's Mental Ray use a HDRI style environment for exterior reflections?

Revit Building >> Technical Support

Wed, Jun 12, 2013 at 1:39:36 PM


I hate RPC people images. Anyone got tips on how to make my own in Mental Ray?

Revit Building >> Technical Support

Thu, Jan 1, 2009 at 6:33:39 AM


mental ray compatible garage door?

General Discussion >> Wishlist

Thu, Sep 18, 2008 at 3:16:00 PM


Rendering slow with Mental Ray - try ray tracer?

Revit Building >> Technical Support

Fri, Apr 15, 2016 at 3:43:53 AM


Site Stats





Forum Posts:


Job Listings:


Sponsored Ads

Home | Forums | Downloads | Gallery | News & Articles | Resources | Jobs | Search | Advertise | About | Link To Us | Site Map | Member List | Firm List | Contact Us

Copyright 2003-2010 Pierced Media LC, a design company. All Rights Reserved.

Page generation time: 1.7596


User Name:


Remember Me  

Forgot Password?

Search Forums

Advanced Search

Search Forums

Advanced Search

Clear Highlights

Clear Highlights