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Thread: Cloud render compared to 3dsMaxDesign 2013 render (internal)

  1. #1
    Senior Member willsud's Avatar
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    Cloud render compared to 3dsMaxDesign 2013 render (internal)

    I've become quite addicted to cloud renders out of Revit 2013 but still link project files into 3dsMaxDesign2013 for wandering around the interior - it's just so much quicker and I still do quite a few still image renders in 3dsMD2013 (external renders seem better to me somehow than done in the cloud - plus I can't see a way of saving with Alpha channel included in the cloud in TIF or PNG formats ?).

    Anyway, I ran a comparison of internal renders today - one from Revit 2013 via the Autodesk cloud and one from 3dsMD2013 having linked the Revit project file (and just changed the glass material to an Arch & Design material).

    Apart from the camera being too wide-angle in the latter, the views should be much the same - but the colour balance is quite different, with the cloud rendering being much 'warmer' in tone (possibly a bit unnatural?).

    I just wondered if anyone else had come across this?

    The cloud rendered image is a bit easier on the eye - plus it took 5 minutes to render and the 3dsMD2013 one took 20 hours (iRay) on my quad-core PC with Quadro 4000 (probably wasn't using the GPU - should've knocked out rest of the model I guess ).

    Still, the cloud rendering from the Revit menu bar is pretty impressive.

    (Thumbnails attached - left is cloud rendering).
    Attached Thumbnails Attached Thumbnails Cloud render compared to 3dsMaxDesign 2013 render (internal)-2012-023_bathroom_1024.jpg   Cloud render compared to 3dsMaxDesign 2013 render (internal)-5thjanbedroomview2.jpg  

  2. #2
    Autodesk Scott D Davis's Avatar
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    The Rendering engines are different, which would probably cause the differences. Max will use Mental Ray, and the Cloud Rendering service is using a different rendering engine, thatI can't recall the name of right now.

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    Senior Member willsud's Avatar
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    Thanks Scott - I wondered if there might be different rendering engines involved.

    I think for 5 minutes versus 20 hours I can live with the differences in most renders

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    Moderator gaby424's Avatar
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    the difference, is there In max is Iray if Will opted for it. Scott, I think the cloud is mentalray with settings for faster rendering times(at least the light rayes don't travel to much so they can create light reflections on objects like the Iray from the right does).

    I think that the same image rendered in 3d max with mentalray instead Iray with the same set of settings can be done on an average computer in less that 30 min. Mental ray in 3d max is extremly fast if you hunting for the quality like the cloud based render posted by Will.

    Will if you want, you can send or post that room, and I'll send back the mental ray setup so you can test how fast is on your pc mental ray
    Last edited by gaby424; January 7th, 2013 at 10:23 AM.

  5. #5
    Senior Member willsud's Avatar
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    Thanks gaby,

    Unfortunately the room is within a farmhouse and part of a complex of old buildings which is probably why it took so long to render as I had the whole Revit model in 3dsMaxDesign.

    I have read about methods of reducing the parts of the model involved in a render but never got round to doing it.

    Normally I like renders on the PC to complete in less than 30 minutes otherwise I change the settings - life is too short for long render times

  6. #6
    Moderator gaby424's Avatar
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    you can have a section box in revit around that room and than you export that 3d view as fbx. That`s the simplest way.

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    Senior Member willsud's Avatar
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    Ah, that's it - I'd forgotten all about that - thanks again gaby

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    Autodesk Scott D Davis's Avatar
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    Quote Originally Posted by gaby424 View Post
    Scott, I think the cloud is mentalray with settings for faster rendering times
    It's not mental ray or iRay in the cloud. It's something more along the lines of the SilverLight engine that's available in Max.

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    Junior Member theclaus's Avatar
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    My experience with the cloud has been kinda wonky. Sometimes I would send the model to render and get something nice that I could continue to touch up with photoshop. Other times it would spit out something odd with textures missing or colors changed, not sure if this was something from my end or not? The cloud Rendering seems to great to "test" quickly what a final render might look like, but it was to unpredictable to me to use it for a FINAL rendering, I still prefer to do that on my own machine.

  10. #10
    Autodesk Scott D Davis's Avatar
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    Quote Originally Posted by theclaus View Post
    The cloud Rendering seems to great to "test" quickly what a final render might look like
    This is really what the cloud renderer was built to do...crank out quickly a large number of "test" renders or "design renders". It's limitations on pixel dimension don't make it great for large "presentation" type renders where you might want a poster-sized image. But what its great at is "what-if" scenarios...what does the floor look like with tile instead of wood? What do you think of paint1 vs paint2? The cloud renderer is meant to be used as a design visualization tool to help us with the design. Max is still the tool of choice for those high-end "final" presentations to the client.

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