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New to dForce, how does it work?

gibrril_fa945a6ceegibrril_fa945a6cee Posts: 550
in The Commons

Hi all,

I'm new to the use of dForce clothing and stuff, so I was wondering: in order to calculate the simulations, does dForce use system Ram or GPU Ram? I would like to keep the GPU Ram free for rendering purposes, so if dForce uses System Ram, that would be grat. If it doesn't use system Ram by default, is there a way to "force" it into system Ram so the GPU Ram stays free for rendering?

Thanks a lot,

Me

Comments

  • RobotHeadArtRobotHeadArt Posts: 917

    It uses GPU RAM during the simulation process but it should be returned to the system as being available for use during the render process.  They are two different steps, so you simulate first and then render later.

  • Dim ReaperDim Reaper Posts: 687

    My machine is rendering for the next hour or so, so I can't check, but from memory you can set dforce to use either the cpu or the gpu (and so the corresponding memory).  However, all dforce calculations are done before and separate to the rendering, so it does not place an additional burden on your system resources.

    In a normal scene, I would set the figures, add clothes and apply the dforce simulation.  Once this is finished, I would then add lighting and render the scene.

  • gibrril_fa945a6ceegibrril_fa945a6cee Posts: 550

    Thanks! So even if I use a ton of dForce clothes that have to be simulated, all that would not impact the memory free for rendering? Great news!

    Thanks a lot,

    Me

  • IceDragonArtIceDragonArt Posts: 12,760
    gibrril_fa945a6cee said:

    Thanks! So even if I use a ton of dForce clothes that have to be simulated, all that would not impact the memory free for rendering? Great news!

    Thanks a lot,

    Me

     

    Correct, as they are two separate processes.  Dforce has to be done before you can render. Be aware that using Dforce on a lot of clothes in the same scene can use a rather large amount of memory, so make sure that you turn off (the eye icon) anything you don't need for the simulations. (hair especially)

  • gibrril_fa945a6ceegibrril_fa945a6cee Posts: 550
    edited November 2018
    IceDragonArt said:
    gibrril_fa945a6cee said:

    Thanks! So even if I use a ton of dForce clothes that have to be simulated, all that would not impact the memory free for rendering? Great news!

    Thanks a lot,

    Me

     

    Correct, as they are two separate processes.  Dforce has to be done before you can render. Be aware that using Dforce on a lot of clothes in the same scene can use a rather large amount of memory, so make sure that you turn off (the eye icon) anything you don't need for the simulations. (hair especially)

    Thanks! I have 12 GB of GPU Ram and 128 GB of System Ram to play with. How far would that get me with dForce calculations?

    Post edited by gibrril_fa945a6cee on
  • AllenArtAllenArt Posts: 7,175
    gibrril_fa945a6cee said:
    IceDragonArt said:
    gibrril_fa945a6cee said:

    Thanks! So even if I use a ton of dForce clothes that have to be simulated, all that would not impact the memory free for rendering? Great news!

    Thanks a lot,

    Me

     

    Correct, as they are two separate processes.  Dforce has to be done before you can render. Be aware that using Dforce on a lot of clothes in the same scene can use a rather large amount of memory, so make sure that you turn off (the eye icon) anything you don't need for the simulations. (hair especially)

    Thanks! I have 12 GB of GPU Ram and 128 GB of System Ram to play with. How far would that get me with dForce calculation

    You'll be fine :)

    Laurie

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