Is it possible to modify Render Engine with Script?

[WizzyMotion]

I need to modify hundreds of Comps that have the settings set for ray-traced 3d for Classic3D.

I can not find documentation that tells me if you can modify this item in Composition.

Someone would know to answer me.

Thank you in advance for your help.

Regards.

Rubens Nobre.

[Theodoros Tziatzios · Accepted solution]

Of course you can:

CompItem.renderer

app.project.item(index).renderer
Description
The current rendering plug-in module to be used to render this composition, as set in the Advanced tab of the Composition Settings dialog box.
Allowed values are the members of CompItem.renderers.
Type: String; read/write

In CC2018 the available renderers are:

• ADBE Advanced 3d = that's the "Classic 3D" renderer
• ADBE Ernst = this is the "Cinema 4D" renderer
• ADBE Picasso = this is the "Ray-traced 3D" renderer

So you'll have to create a for-loop and iterate through all of your comps and set the renderer to "ADBE Advanced 3d" like so:

curComp = app.project.activeItem;
curComp.renderer = "ADBE Advanced 3d";

Hope this helps.

[WizzyMotion]

Thank You TheodorosGR​ I'll try now.