Forum

Help With Rendering Speed

Posted by Render Plus on January 31, 2015 at 3:29am in IRender nXt ArielVision 3D Design Studio (Sket
We upgraded our computer to windows 8.1 64 bit 6 GB memory.

Since the upgrading, render is not working well. It takes a very long time to render and is very slow. I do everything the same but it much much slower. There are almost no lights at the model, and I make sure to delete unnecessary Furniture. I do not what I'm doing wrong and I can't work.

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Replies

  • Rich Hart March 9, 2015 at 4:01pm


    Please try the latest version posted.

    http://www.renderplus.com/wp2/download/

    We found a way to increase the rendering speed.



    may shmulenson said:

    Dear Al

    Hallo again.

    I took all your advices, did everything as said, and still, the rendering is taking a very very ling time. as an experiment, I took some models from the past, that I already

    rendered before with no problem, and I rendered them  this week again. I'm sorry to say that this time it took much longer from the past. the same model.

    I know it is very hard to find a problem over seas, but something went wrong with my render. )-:

     
     
  • Rich Hart March 9, 2015 at 4:01pm


    Please try the latest version posted.

    http://www.renderplus.com/wp2/download/

    We found a way to increase the rendering speed.
    Vova P. said:

    Probably, this is the same problem: http://forum.irendernxt.com/xn/detail/6120890:Topic:55450?xg_source...

    I'm also agree that after upgrading the render time has increased dramatically.

  • Render Plus March 7, 2015 at 4:41am

    Thanks to all who contributed to this thread.

    We found an example model which definitely was taking longer to render in the latest version, as compared to a version from 2 years ago. After some investigation it turned out that a compiler optimization flag did not have the proper setting, and when we fixed that the speed of rendering doubled - and returned to its previous value.

    We will put out a new version with this fix next Monday or Tuesday and send you an email so you will know when to download it (and also add a post to this thread and to this forum when it is ready. In the future we will run some benchmarks on each new version to make sure this does not happen again.

    Again, we are sorry that this mistake slipped in, but you should be able to look forward to faster rendering times in the future. The problem was most evident in interior renderings with lights.

  • Render Plus February 28, 2015 at 10:58am

    Is this a model which you rendered with a previous version of IRender nXt, and now it is slower in the latest version?

    That is what we are looking for, so we can make sure that the new version is not rendering things more slowly.

    You can upload models using this link:

    http://www.renderplus.com/wp2/uploads/

    Send us an email after you upload the model. Please let us know what version of IRender nXt you were using when it rendered faster, or the approximate date when you were rendering it.

    We will be putting out a newsletter next week with ideas for speeding up your renderings.

  • may shmulenson February 24, 2015 at 5:13am

    ok. thank you very much. I really appreciate it.

    can you give me a link how can I send you the model? it's heavy.

  • Render Plus February 24, 2015 at 4:55am

    Send us a model which used to render faster, and we will render it with the latest version, and an earlier version of IRender nXt to see if there is something which is making renders slower in the current version.

    We will agree not to share your model with anyone else.

    Send it support@renderplus.com along with a guess at how long ag it used to render more quickly, so we can know which old version to test it with.

  • may shmulenson February 24, 2015 at 4:46am

    Dear Al

    Hallo again.

    I took all your advices, did everything as said, and still, the rendering is taking a very very ling time. as an experiment, I took some models from the past, that I already

    rendered before with no problem, and I rendered them  this week again. I'm sorry to say that this time it took much longer from the past. the same model.

    I know it is very hard to find a problem over seas, but something went wrong with my render. )-:

     
     
  • Render Plus February 10, 2015 at 8:23am
    Thank you for your response.
    I was trying to do the suggestions posted in the thread. The render of your sample model took me about 4:40 minutes. The CPU usage changed from 50-80%, depends on the rendering stage, as well as the CPU speed (2.0-3.3HGz).
    However when I try to render my model, while calculating Geometry the IRender was stuck in Non-Responding status while consuming 30% CPU. Then after about 10 minutes it eventually started to render quiet slowly. Before I started the render I did "Purge Unused". See attached Statistics of my rendering file and CPU usage screen shot while it is rendering.
    As for the lights: I'm using only the rendering scene lights.
    Statistics:
    Geometry:
      Meshes: 121580
      Faces: 1442307
      Materials: 122
      Lights: 141
      Material Illuminance Lights: 6
      ArPlants: 0
      RPCs: 0
    It sounds like your computer is working properly - 4 minutes and 80% processor usage - so the slow down must be from the complexity of your model - or because of some lights which have gotten out of hand.
    Your statistics show a lot of 3D faced - 1,442,307. Is there any complex geometry you could eliminate or make less complex. (for instance the number of sides on cirucular items)
    Sometimes you can replace a complex 3D item in the background with an image of the item which has considerable fewer faces.
    Do you have about 140 lights, or are some lights generated too many actual lights because of complexity of the geometry?
    Sometimes a single light like this will wind up generating lots of individual lights because of the way the geometry is interpreted. (It may generate a light for each rectanglein the yellow dome - if the dome is set to be a light source)
    However my guess is that you simply have too many faces. Try rendering just one layer, or some other subset of your model which has only 100,000 or so faces and see if the rendering times imrpove.
  • Render Plus February 2, 2015 at 6:32am

    Here is another comment on this issue:

    I have been using your rendering program for some time now and I love it!! One issue i would like speed up if possible. Is there a way in which I can speed up the rendering time on larger sketch up models. My question is will a Graphics card or video card upgrade on my part help? I have a DELL XPS. Thanks so much for any advice!!



    We don't use the graphics card for any of the rendering processing, so that would not help.

    Here is a forum posting that we made recently about system requirements and speed:

    http://forum.irendernxt.com/forum/topics/hardware-recommendations-f...

  • Render Plus February 2, 2015 at 6:20am

    I was able to render the sample model in SketchUp 2105 and the latest version of IRender nXt - OA28

    And also in SketchUp 2013 with a 2 year old version of IRender nXt - ME17 - and got very similar results

    2 minutes 15 seconds for SketchUp 2105 - IRender nXt - OA28

    2 Minutes 36 seconds for SketchUp 2013 - IRender nXt - ME17

    This shows that there is no slowdown in render time due to either the SketchUp version or the IRender nXt version. So if things are slowing down for people it is probably because of some difference in machines.

    If you render this model, try to render it at about the same resolution - 600 x 325 - because higher resolutions will slow down rendering times - and for the same 20 passes. We want to compare apples to apples as much as possible.

    2506662989?profile=original2506663135?profile=RESIZE_1024x1024

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