Any way to batch render multiple files?

[onni_it]

As much as I love using the batch render function for files with multiple scenes, I'd really like to be able to batch render scenes in different files. I suspect there's a way to do so using exported vrscenes, but to be honest I'm not entirely sure how to do so. Is there a way to achieve this?

Thank you!

[konstantin_chaos]

Hi onni_it ,

... I'd really like to be able to batch render scenes in different files

This can be done only with a Ruby scripts.
I'll consult with the dev team and we might be able to put together a simple example.

Konstantin

[Peter.Chaushev]

The following script allows rendering multiple scenes from multiple SketchUp project files with a single action.
Please execute the solution using the following steps:

1. Select scenes from each SketchUp project (.skp) you wish to render.
   If you do not wish to include a specitic Scene, excluding it from animation (checkbox found in the Scene details tray panel) is enough to flag it and V-Ray will skip it.
2. Copy the script text found below and paste it into a text editor of your choice.
3. Edit the script by changing the file location for your .skp files and an output location for all rendered images. There are instructions what and how to edit at the bottom of the script text.
4. Open SketchUp.
5. Open the Ruby Console (Window > Ruby Console or Window > Developer > Ruby Console).
6. Paste the edited script text and hit 'Enter'.
   V-Ray then inspects and exports each scene from each project and once this process is done all scenes are rendered in sequence.

class BatchFileRenderer

  OSX = !(/darwin/ =~ RUBY_PLATFORM).nil? unless defined?(OSX)
  WINDOWS = !OSX unless defined?(WINDOWS)
  SKETCHUP_VERSION ||= Sketchup.version.split(".").first.to_i + 2000
  UPDATE_TIME ||= 0.1

  def initialize(skp_files)
    @skp_files = skp_files.clone
    @vrscene_files = []
    @renderer = VRay::VRayRenderer.new()
    @renderer.subscribe(self)
  end

  def export
    @skp_files.each { |skp_file|
      raise "Failed to open file" if !open_model(skp_file)

      # activate the context
      context = VRay::Context.active
      context.renderer.subscribe(self)

      # export vrscnes
      project = File.basename(skp_file, ".skp")
      tempdir = Dir.tmpdir.encode(Encoding::UTF_8)
      export_path = "#{tempdir}/#{project}"
      FileUtils.mkdir_p(export_path)
      exporter = VRay::BatchExporter.new(context: context)
      @vrscene_files += exporter.export(export_path)
      puts export_path
    }
  end

  def render(output_path)
    @output_path = output_path
    render_next
  end

  def on_state_changed(renderer, old_state, new_state, instant)
    case new_state
    when :idleStopped, :idleError, :idleFrameDone, :idleDone
      renderer.save_vfb_image(
        @img_file,
        apply_color_corrections: true,
        single_channel: true
      )
      render_next
    end
  end

  private

  def render_next
    vrscene_file = @vrscene_files.shift
    return  if !vrscene_file

    project = File.basename(File.dirname(vrscene_file))
    @img_file = "#{@output_path}/#{project}_#{File.basename(vrscene_file, ".vrscene")}.png"
    @renderer.clear!
    @renderer.load(vrscene_file)
    @renderer.start()
  end

  def open_model(path)
    Sketchup.active_model&.close(true)
    VRay.pump_message
    return Sketchup.open_file(path) if SKETCHUP_VERSION < 2021
    status = Sketchup.open_file(path, with_status: true)
    [Sketchup::Model::LOAD_STATUS_SUCCESS, Sketchup::Model::LOAD_STATUS_SUCCESS_MORE_RECENT].include?(status)
  end

end

#SET THE LOCATION OF YOUR SKP PROJECTS HERE
#ENSURE THE DIRECTORY PATH IS ENCLOSED WITH SINGLE QUOTATION MARKS
#USE ONLY SLASHES IN YOUR DIR PATH. NO BACKSLASHES.
#LEAVE THE /**/*.skp AFTER THE DIR PATH TO ENSURE ALL SKP PROJECTS FOUND THERE ARE LOADED.​
skp_files = Dir.glob(
  'C:/Users/user/Desktop/example_location/**/*.skp'
)

batch_file_renderer = BatchFileRenderer.new(skp_files)
batch_file_renderer.export

#SET OUTPUT LOCATION FOR RENDERED IMAGE FILES
#ENCLOSE THE PATH IN SINGLE QUOTATION MARKS AND USE ONLY SLASHES.
batch_file_renderer.render('C:/Users/user/Desktop/example_location')

Hope this script will suffice!
Be advised it relies on internal classes and method calls that may change in the future. Eventually the script may stop working with future version of V-Ray for SketchUp.
If it does we will update it accordingly.

Kind regards,
Peter

[sebastian_plehn]

Hi

Nice script. I'm using SketchUp Pro 2020 with Vray Next. Will it work?
I get this error when I try?
Error: #<NoMethodError: undefined method `subscribe' for #<VRay::VRayRenderer:0x00007f88b098cc00>>
<main>:11:in `initialize'
<main>:81:in `new'
<main>:81:in `<main>'
SketchUp:1:in `eval'

I'm MAC user and use this path "/Users/sebastian/Library/CloudStorage/OneDrive/SketchUp/Test/**/*.skp"


What do I do wrong?