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This page provides information about submitting render jobs to Chaos Cloud from V-Ray for Maya.

 

Overview 


Submitting render jobs to Chaos Cloud can be done easily and directly from V-Ray for Maya's interface. This page walks you through the steps of doing so.

Chaos Cloud requires the installation of the Chaos Cloud Client application. For more information, please visit the Installation of Chaos Cloud Client page.

If you add a new version of a job you have already submitted, its upload will be much quicker than the initial upload. Chaos Cloud compares every new job to the existing ones, and if there is a match the client app will upload only the changes. This is useful when you make a new iteration of an existing scene and is why it's recommended to keep your jobs in Chaos Cloud while you are still working on them.


Submitting Render Jobs


V-Ray for Maya provides in-built integration with Chaos Cloud, allowing you to submit render jobs to the cloud directly from Maya, using the dedicated Render in Chaos Cloud button. The button is located on the V-Ray Shelf and can also be found in the V-Ray Menu.

 

 

Clicking on the button will open the Submit to Chaos Cloud window.

 

Submit to Chaos Cloud


The Submit to Chaos Cloud window allows you to choose how to submit your scene to Chaos Cloud.

Clicking on Export and Submit will export the scene and submit it to the cloud for rendering. You will be prompted to finalize some of the settings for the render job in a web browser before it starts rendering in Chaos Cloud.

You can choose to do all final settings directly in Maya and then submit the scene to Chaos Cloud with the Enable Direct Submit Options button.

 

Enable Direct Submit Options


If you enable the Direct Submit Options, you can enter you Chaos Cloud login information directly in Maya and choose to which Chaos Cloud project to submit the job.

 

 

In the Layer and Camera panel you can specify a render camera from the current layer. Note that you can only choose a renderable camera from the current layer.

The Login Information panel allows you to select a project where the render job is submitted. The Manage Login button will take you to your Chaos Cloud account should you need to do any changes.

Abort on Warnings – When enabled, the scene will not be submitted to the Chaos Cloud if there are any warnings during the scene processing, such as missing textures or other assets.

Refresh – Forces a refresh of the window.

Close – Closes the Submit to Chaos Cloud window.

 

Export and Submit


If you have not used the Direct Submit Options, you will be prompted to finalize some of the settings for rendering in the Chaos Cloud in a web browser.

Once the scene is successfully analyzed, you have to finalize some of the settings of the render job before it starts rendering in Chaos Cloud.

 

 

The output image types that you are able to download by rendering in Chaos Cloud are JPG and the file type you have specified in the settings of your scene. These settings are customized in the 3D application you use for designing your scene. If you don’t specify anything in the 3D application, Chaos Cloud generates an EXR image beside the JPG one.

When submitting a render job requesting TIFF and/or TGA images as a result, the results might be unexpected as not all TIFF and TGA settings are exported to Chaos Cloud.

Note that the supported output image formats by Chaos Cloud regardless of the host application are the following: *.png, *.bmp, *.tga, *.hdr, *.sgi, *.rgb, *.rgba, *.jpg, *.jpeg, *.exr, *.pic, *.tif, *.tiff and *.vrimg.

The cost for rendering a job can be limited by using the Job Credit Limit setting. For more information, see the Credit Limit section.

 

When ready, click the Submit button. When you are presented with the following message your render job is submitted successfully and it will start rendering in the cloud.

 

 

Clicking on View Job redirects you to the Projects tab of Chaos Cloud. There you can monitor the status of your render jobs, download them, organize them in projects, resubmit, or delete them. For more detailed information on these topics, see the Managing render jobs in Chaos Cloud page.

 

If there are free resources in the cloud, Chaos Cloud will start rendering your job immediately. If there are no free resources, your job will join a queue and will start rendering automatically when resources become available.

 

Render Engine Overrides


When rendering a V-Ray GPU job the CUDA CPU Override option allows you to override the render engine to render with CUDA on CPU only. This can be useful when:

  • there is no GPU hardware available to render the V-Ray GPU job
  • the 16 GB of memory, available on the GPU hardware that Chaos Cloud uses, are not enough for the job to render

When Chaos Cloud detects that there is no GPU hardware available, it shows a warning which asks you whether you want to wait for a GPU hardware and gives you an option to use another command which:

  • Stops the rendering of the current job
  • Clones the current job and sets the CUDA CPU Override option to ON so the job renders only on CPU

When the job is rendered, you can see whether it is a V-Ray GPU or a V-Ray job in the Job Details. If it is a V-Ray GPU job, Chaos Cloud shows whether it has rendered only on CPU.

 Click here to see the image...

 

Output Naming Convention


Upon job submission, you can choose the naming convention of the output file(s). You can find the following options in the Output naming panel:

<name> – Specifies the main name of the output.

<render element> – Specifies the position of the render element(s) in the naming convention, if there are such.

<###> – Specifies the padding of the frame's number. This option is available only for animated jobs.

Using the arrows, you can move the position of each name component to customize the output name(s).

 

If there are free resources in the cloud, Chaos Cloud will start rendering your job immediately. If there are no free resources, your job will join a queue and will start rendering automatically when resources become available.

Alternatively, render jobs can also be submitted through the Standalone Chaos Cloud application and any command-line interface. For more information please visit the Submitting render jobs to Chaos Cloud page.

 

Additional Render Settings


In the Common tab of the Render settings resides an additional option when submitting a scene to the cloud. 

To override an enabled render region in the VFB, you can use the Disable region rendering in batch mode option from the Render View rollout