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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