Query batch camera rendering

[snivlem]

Hi,

Maybe this is not a specific V-Ray question, but it is for Maya and rendering with V-Ray, so I'm not sure where else to ask?

Is there a way to query the exact current render camera during a batch render?

[ivaylo.ivanov]

You can check out vrayBatchRender() in vrayRegisterRenderer.mel if you want this badly. $batchCamera can be used to get the current camera. However currently it's not global. I will make a note to implement "vrend -q camera".

[snivlem]

Thank you. That is very helpful.

[yolov]

Hi snivlem,

Just to clear things up, did you mean that you want to query which camera renders at the moment during the batch render in Maya GUI?

[Zach Gray]

Here's the hacky code snippet I use. However, I'll look into $batchCamera like ivaylo suggested.

global proc string vraySubmit:getRenderableCamera(){
        //returns first renderable camera
	string $cameraList[] = `listCameras -p -o`;
	string $renderCamera;
	for($camera in $cameraList){
		int $renderable = `getAttr ($camera + ".renderable")`;
		if ($renderable){
			//setAttr vraySettings.batchCamera -type "string" $camera;
			$renderCamera = $camera;
			break;
		}
	}
	return $renderCamera;
}

[bigbossfr]

In PyMel, one line :

import pymel.all as pm
renderCameras = [x.name() for x in pm.ls(ca=True) if x.renderable.get()]

[snivlem]

Hi snivlem,
Just to clear things up, did you mean that you want to query which camera renders at the moment during the batch render in Maya GUI?

Yes, I aim to have code in the MEL prerender, so I can get the exact name of the camera that will be used during the batch render.

So for example, in my batch render scene I have these as renderable cameras.

Camera1
Camera2
Camera3
Camera4

So when V-Ray starts rendering through Camera2 I can query this via pre render MEL and it returns the exact value "Camera2"...NOT the other cameras.

In Maya GUI it is easy because of:

string $renderPanel = `getRenderWindowPanel`;
$camera = `renderWindowEditor -q -crc $renderPanel`;

[milena.sarneva]

Thanks a lot for the reply. I messaged you with some more questions to find the most suitable way to implement this.

I guess it would be best to call "vrend -q camera" (implemented already for this issue) from pre render MEL.