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Can switching from CPU to GPU speed up renders with Graphics (not Video) Card?

EightiesIsEnoughEightiesIsEnough Posts: 1,129
in Technical Help (nuts n bolts)

Is it possible for images and video to render faster if still using the graphics card but switching from CPU to GPU mode?

Comments

  • AscaniaAscania Posts: 1,855

    Graphics and video card are the same thing.

  • kenshaw011267kenshaw011267 Posts: 3,805

    in iray CPU rendering is very slow. Depending on the specific graphics card it can many times faster to render on the GPU.

  • EightiesIsEnoughEightiesIsEnough Posts: 1,129

    So what would I have to do in order to switch my computer from CPU to GPU?  I will have to check on what graphics card I have when I arrive home from work in at least an hour from this post.

  • kenshaw011267kenshaw011267 Posts: 3,805

    You need a reasonably recent GTX or RTX video card. You also need to keep your scene's memory consumption low enough to fit in the card's memory. Once you know whcih card you have you can also find out how much memory you have to work with. Then open up DS and go to the render options. Select the advanced tab and select your video card and unselect your CPU under either the photoreal or interactive sections, depending on which you render.

  • AscaniaAscania Posts: 1,855
    JonSea31 said:

    So what would I have to do in order to switch my computer from CPU to GPU?

    You don't. Your computer always uses both, the CPU and GPU, each for their respective jobs.

     

    If, on the other hand, you want DAZ Studio to render using the GPU as the primary workhorse then you switch to it then the render setting for Iray have the respective choice for you.

  • EightiesIsEnoughEightiesIsEnough Posts: 1,129
    Ascania said:
    JonSea31 said:

    So what would I have to do in order to switch my computer from CPU to GPU?

    You don't. Your computer always uses both, the CPU and GPU, each for their respective jobs.

     

    If, on the other hand, you want DAZ Studio to render using the GPU as the primary workhorse then you switch to it then the render setting for Iray have the respective choice for you.

    What path would I have to take in order to use GPU as the primary workhorse?

  • kenshaw011267kenshaw011267 Posts: 3,805
    JonSea31 said:
    Ascania said:
    JonSea31 said:

    So what would I have to do in order to switch my computer from CPU to GPU?

    You don't. Your computer always uses both, the CPU and GPU, each for their respective jobs.

     

    If, on the other hand, you want DAZ Studio to render using the GPU as the primary workhorse then you switch to it then the render setting for Iray have the respective choice for you.

    What path would I have to take in order to use GPU as the primary workhorse?

    see my previous post.

  • EightiesIsEnoughEightiesIsEnough Posts: 1,129
    edited March 2019

    Just to inform, I don't use iRay rendering at this time.  iI presently use 3delight, with pwToon shaders.

    I'd like to ask, are renders slower because of the size of images?  I did download a free script that reduces the images to a smaller size, but the extra small images make props look blurry.  is Scene Optimizer a better tool to use in order to reduce image sizes and retain better quality?  Worst case scenario, maybe i should use GIMP to manually reduce the file size and retain the same high quality.

    I realize also that using Genesis figures of any version may contribute to slower renders.  I do have Victoria 4, but the trouble is, whenever Victoria 4 figures wear skirts, the skirt doesn't move with the legs.  Is there any way to make a skirt move with the legs of a Victoria 4 or The Kids 4 figure?

    I also think using props with a lot of images, particularly those by Stonemason and Dreamland Models, tend to take longer to load the images.  I wonder if there are any low poly houses and neighborhoods I could purchase (but not the Toon style) anywhere?

    Post edited by EightiesIsEnough on
  • AscaniaAscania Posts: 1,855
    JonSea31 said:

    What path would I have to take in order to use GPU as the primary workhorse?

    Use Iray.

    JonSea31 said:

    Just to inform, I don't use iRay rendering at this time.  iI presently use 3delight, with pwToon shaders.

    I'd like to ask, are renders slower because of the size of images?  I did download a free script that reduces the images to a smaller size, but the extra small images make props look blurry.  is Scene Optimizer a better tool to use in order to reduce image sizes and retain better quality?  Worst case scenario, maybe i should use GIMP to manually reduce the file size and retain the same high quality.

    I realize also that using Genesis figures of any version may contribute to slower renders.  I do have Victoria 4, but the trouble is, whenever Victoria 4 figures wear skirts, the skirt doesn't move with the legs.  Is there any way to make a skirt move with the legs of a Victoria 4 or The Kids 4 figure?

    I also think using props with a lot of images, particularly those by Stonemason and Dreamland Models, tend to take longer to load the images.  I wonder if there are any low poly houses and neighborhoods I could purchase (but not the Toon style) anywhere?

    ANYTHING can slow down a render. ANYTHING.

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