Inside Sabertooth
Learn how Sabertooth uses 3ds Max to create 3D interactive projects, including HBO Go’s Game of Thrones interactive experience
  • 1/3
You are here: Forum Home / Autodesk 3ds® Max® / Autodesk 3ds Max / 3ds Max Design 2012 / 3DS Max Design Renders Blank
  RSS 2.0 ATOM  

3DS Max Design Renders Blank
Rate this thread
 
63909
 
Permlink of this thread  
avatar
  • Total Posts: 6
  • Joined: 26 January 2012 06:24 AM

I have used Revit and Navisworks to render still images and construction animations ,respectively, and I am now trying to render walkthroughs of a building model in 3DS Max Design. However, everytime I try to render an .avi file, it always comes out as a blank video. If I try to render a still image, I get a blank image for interior renderings and a white silhouette on a black background for exterior renderings. I am not sure if this is due to lighting settings or rendering settings. Can anyone offer me a solution or recommend a good tutorial on rendering settings for 3DS Max?

Thanks in advance



Replies: 0
avatar
  • Location: West Midlands, England, UK
  • Total Posts: 14445
  • Joined: 06 August 2007 11:06 PM
  • Permlink of this post

Rule 1. Never render directly to an AVI - always render to an image sequence, and use a lossless format (not jpegs!).

Use whatever s/ware you want to combine those images into an avi afterwards - a much faster process than rendering the whole thing every time.

What happens if you render a single frame? is that blank too?



Max 4.2 through 2013.
XP-64 (SP2)
NVidia 9800GTX-512 (Driver 266.58).
Core 2 Quad Q6600 2.4GHz, 8Gb Ram, DX9.0c.

Replies: 1
/img/forum/dark/default_avatar.png

I have read not to go directly to .avi before, and I would much rather render single frames. However, I don’t have any software to combine the individual frames t the moment. Any suggestions would be appreciated.

When I try to do single frame interior renderings, I get just get blank, black renderings. Exterior single frame renderings will give me a white silhouette of my building on a black background.

Author: a.pitcher

Replied: 26 January 2012 07:27 AM  
avatar
  • Sgabriel
  • Posted: 26 January 2012 07:49 AM

You can combine frames using the RAM Player for shorter animations, just open the first file in the sequence and it will bring them all in.  You can also use the Video Post tool under the Rendering top menu in 3ds Max to do the same.  Look it up in the Help files for information on how to use it.

Stephen



Replies: 1
/img/forum/dark/default_avatar.png

Thanks for the help. I will look into both of those and start rendering single frames. Now I just need to figure out what I am doing wrong with the rendering settings… there are a lot more than in Revit or Navisworks.

Author: a.pitcher

Replied: 26 January 2012 08:02 AM  
avatar
  • Location: West Midlands, England, UK
  • Total Posts: 14445
  • Joined: 06 August 2007 11:06 PM
  • Permlink of this post

VirtualDub

If you’re getting black on a single frame then you need to sort that out before even thinking about movies.

Which renderer (probably MR as it’s the default in Design)?
What kind of lighting?
What kind of materials?

Probably the easiest way to diagnose this is if you can post the scene here (zipped!) and let those who know MR pretty well take a look at it.



Max 4.2 through 2013.
XP-64 (SP2)
NVidia 9800GTX-512 (Driver 266.58).
Core 2 Quad Q6600 2.4GHz, 8Gb Ram, DX9.0c.

Replies: 5
/img/forum/dark/default_avatar.png

I think I may have figured it out on my own (keyword think)… When going directly to .avi, I should have been doing everything uncompressed. That may have been a codec issue. I’ve gotten exterior frames to render just fine now.

As for interiors…

I did not realize that I needed to turn the lights in the scene to “on”. I’m used to Revit where the lights are automatically on and need to be turned off. I imported the model from revit and just assumed that was still the case (You know what they say about assumptions...). However, now that the lights are on, they are not showing up in the scene. All I am getting is daylight through glass doors in the rendering and the viewport (set to perspective and realistic).

I would love to upload the scene, but since it contains the export of the Revit model I can’t. It’s considered propriety by the Owner and we could get in trouble for posting it. I can say that I am using the MR renderer, the lighting is composed of photometric free lights, and the materials are all from Revit (I haven’t edited anything since linking the .fbx file from Revit). If you need to know any of the settings, I will be more than happy to provide them.

Author: a.pitcher

Replied: 26 January 2012 09:03 AM  
/img/forum/dark/default_avatar.png

Check your exposure and the values for your lights.  Compared to the Sun your lights might as well be turned off. I believe the fix is to set the lights to Unitless and crank up the output (80,000 springs to mind).

Author: Steve_Curley

Replied: 26 January 2012 09:17 AM  
/img/forum/dark/default_avatar.png

How would I set the lights to unitless?

I moved to an interior room with no windows so I won’t be affected by the sunlight. I can figure that one out later. I’m pretty sure I need to learn more about mr Sky Portals.

Through a little research and some tutorials (Do you have any suggestions for good ones outside of full fledged training programs?)I figured out part of my problem… Ctrl+L. Now I have lights in the viewport and it’s not pitch black. The problem now is that it is tinted blue.

Author: a.pitcher

Replied: 26 January 2012 09:57 AM  
/img/forum/dark/default_avatar.png

If it’s entirey indoors (no external light coming in) then it’s probably an Exposure issue. Unitless is an option on the Modify Panel (for the Light).
Blue? Not sure - you begin to see why I suggested posting the scene - there are so many possibilities it’s impossible to guess at all of them (yes, I understand why you can’t do that).

Author: Steve_Curley

Replied: 26 January 2012 10:23 AM  
/img/forum/dark/default_avatar.png

That’s what I was thinking. I’m just not used to having so many options for exposure (and everything else), so I’m not sure where to begin.

I started over, not that I lost any real work, and the blue has gone away (not sure what it was or why). I think toggling lights on and off in the viewport (Ctrl+L) was a big part of my problem. They’re lighting up the viewport and the renderings now, but they seem a little weak and they’re not emitting a whole lot of light. This may be a materials issue (I’ve read that materials lose A LOT of properties when you import/link them to 3DS Max) or a lighting issue. I’ll play around with both until I figure it out, unless you have a better suggestion.

I understood the benefit of posting the scene as soon as I opened 3DS. Thanks for understanding the reasoning. Many lesser people would have just walked away and stopped posting.

Author: a.pitcher

Replied: 26 January 2012 10:41 AM  
avatar
  • drp281
  • Posted: 26 January 2012 08:14 AM

revit just has a mental ray lite version built inside
thats why 3ds max has the steeper learning curve and better render outout



Replies: 0
avatar
  • 3danim8d
  • Posted: 26 January 2012 09:04 AM

What are your Exposure Control settings?  Can you post a screen shot of how you have it set?  Are you using mr Sun and mr Sky and photometric lights inside your model?



http://www.wiley.com/WileyCDA/WileyTitle/productCd-047088262X.html

Replies: 0