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Monday, 23 July 2012

Different Ways how to produce large render output

Because of the memory limitation of SketchUp (32 bit), Vray SketchUp is also affected by it. Whenever we try to produce huge output, say 8000 pixel width, surely we end up choking the memory limit of SketchUp and thus resulting VRAY SU to crash.. Sounds familiar right?

I want to share here at least three different options on how to compensate this limitation.


Option 1: Using the vrimage and EXR output. I have done a tutorial for this one HERE.
Even with this with higher settings I still crash my Vray Su.


Option 2: Using render region. Here is how I do it.

Step 1: Render in low resolution and small output size. Here I used low Image sampler and output first
  

Step 2: Crank up the Irradiance Map and Light Cache settings. See the render...




 Step 3: Saved the Irradiance and Light Cache maps. Then load the save maps in both irradiance and light cache again this time the mode should be "From File". You also increase the Image sampler and lower the color treshold for smoother image.

Save LC map
Save Irradiance Map


Increase Image sampler
Load Maps again


Step 4: Increase the Vray output.. Here I will do 3000 x 1403px. Hit Render. Now wait for the Vray Frame Buffer to appear once it appeared stop the rendering.


Step 5: Use the render region


In this render I selected the 1/4th part of the render image in the frame buffer.


Step 5: Choose the next area: After render choose the next area. Then the next one. You may wish to save every file then compose them in Photoshop. If you are lazy in saving you can finish the rendering using this technique.


Option 3: Use Image Enlarger.

There is a free program that you can download HERE called Smilla Enlarger. For me this is a very good alternative. It's faster and at the same time simpler.

Produce a smaller render output, then enlarge it using this software.


Cheers!

Nomeradona
at

5 comments:

  1. zernan suarez24 July 2012 at 11:56

    galing ng trick mo sir dito...nice nice nice share ko to sir ha...thank's again.

    ReplyDelete
  2. Alessandro Esposito24 July 2012 at 16:51

    Hi, can you help me? i shuold do soft shadows but in my vray setting isn't size sun parametre,how can i do?

    ReplyDelete
    Replies
    1. Unknown8 September 2012 at 23:01

      soft shadow.. the bigger the sun size the softer the shadow. at the same time increase the shadow subdivision.

      Delete
  3. Nizar14 October 2012 at 20:08

    Hi. Thanks for the smart tip ;)

    I recently found on a guy's blog an EXTREMELY useful patch he made to correct memory problems. I had trouble for YEARS with my renders, even with clay renders and .exr output. But man, this guy has solved it, you have to share this :

    http://www.ntcore.com/4gb_patch.php
    It's a patch that makes Sketchup use 4GB of RAM instead of 2GB. As simple and smart as that.

    I notice on the memory usage of the task manager that when Sketchup is gathering the information before launching the render, it actually goes beyond 2GB. When the render starts buffering, it still increases, but slowly.

    So this patch has been the ONE solution that resolved for real my problem. I recommend it very strongly.

    Cheers.

    Nizar

    ReplyDelete