Hi,
Try this
import maya.cmds as cmds
import maya.mel as mel
mel.eval("""setCurrentRenderer "arnold" """)
Cheers
On Wed, Dec 14, 2016 at 12:18 PM, Enrico Losavio <[email protected]>
wrote:
> Hi everyone,
>
> I am struggling to optimize a batch rendering script of mine.
> Basically I've wrote a script that assigns a certain number of frames to
> each computer in the studio, and then writes a batch render (bat) file per
> pc.
> In case of big scenes, the rendering is automatically split into 'chunks'.
> So that 10000 frames are broken down into -say- 500 frames, then divided
> and assigned to the computers. By doing so, we make sure that little by
> little we complete parts of the animation without having gaps in between.
> The problem with this is that every time a line is executed, the scene and
> all the dependencies are reloaded. And this, in case of an heavy scene,
> could mean take minutes. Also, in case of small chunks / many batch lines,
> it might results in a huge loss of time.
> What I am trying to do here, is to avoid the usual batch render, and to
> use another system. I want to open the scene, *keep it open* and render
> as many frames as I want. Also one at a time.
>
> I also want to be able to catch the state/render log in real time, in
> order to monitor the render and see what's going on on all the computers.
> Using the regular batch render, I can catch the exitcode, but that is only
> when the execution of the whole batch finishes.
>
> For now I am just trying to get my script to be more flexible. But I'd say
> that the long term goal is to have the frames deployed one by one, monitor
> the render progress remotely, and as soon as one pc frees up, assign a new
> frame!
>
> I am trying with *mayapy*, but I'm not making a great deal of a progress.
> In this case, I want to render using VRay. The cmds module provides a
> *render* function, but that's only for rendering using MayaSoftware.
> In my code, I basically just open the file, set the workspace, load vray
> and render trying out a bunch of functions I've found digging deep inside
> the cmds module.
>
> import maya.standalone
> maya.standalone.initialize()
>
> import maya.cmds as cmds
>
> filepath = r"C:\test_prj\rnd_test.mb"
> cmds.file(filepath, open=True, force=True)
>
> cmds.workspace(r"C:\test_prj", openWorkspace=True)
>
> cmds.loadPlugin('vrayformaya')
>
> # the following functions were called one by one in different test files,
> here's just a recap
>
> cmds.batchRender() # Result: There is currently no render to cancel
> cmds.BatchRender() # no result
> cmds.render() # renders just fine, but in MayaSoftware :(
> cmds.vrend() # V-Ray error: Cannot get the object for the current
> render layer:
>
> But none of these options seem to work properly for me.
> There's little to no documentation on the vray python commands, so it's a
> bit hard to debug what's goning on with the last command.
>
> Can anyone suggest me which way to go? Do I have better options than
> MayaPy?
> Any help would be greatly appreciated :)
>
> Thanks
>
> Enrico
>
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