Issue Programmatically Saving "Raytraced" (Cycles) Renderings

Scripting
5

Here a script that does a capture using the ViewCapture script. Use this method if you don’t want to use the dashed command version.

# Material switcher
# and Raytraced viewcapturing

import scriptcontext as sc
import Rhino.Render as rr
import Rhino as r
import Rhino.DocObjects as rdob

import System

av = sc.doc.Views.ActiveView

cycles = sc.doc.Views.ActiveView.RealtimeDisplayMode
oldpasses = cycles.MaxPasses
cycles.MaxPasses = 2

def capture_viewport(name):
	cycles.Paused = True
	view_capture = r.Display.ViewCapture()
	view_capture.Width = av.ActiveViewport.Size.Width
	view_capture.Height = av.ActiveViewport.Size.Height
	view_capture.ScaleScreenItems = False
	view_capture.DrawAxes = False
	view_capture.DrawGrid = False
	view_capture.DrawGridAxes = False
	view_capture.TransparentBackground = False
	view_capture.RealtimeRenderPasses = 10
	bitmap = view_capture.CaptureToBitmap(av)
	if bitmap:
		folder = System.Environment.SpecialFolder.Desktop
		path = System.Environment.GetFolderPath(folder)
		filename = System.IO.Path.Combine(path, name + "_raytraced_capture.png")
		print("saving ", filename)
		bitmap.Save(filename, System.Drawing.Imaging.ImageFormat.Png)

selobs = [ob for ob in sc.doc.Objects if ob.IsSelected(False)>0]

if len(selobs) > 0:

	showroom_materials = [rm for rm in sc.doc.RenderMaterials if rm.Tags and rm.Tags.find("ShowRoom")>-1]
	
	for rm in showroom_materials:	
		for ob in selobs:
			ob.RenderMaterial = rm
			ob.CommitChanges()
			sc.doc.Views.Redraw()
		print("capturing with ", rm.Name)
		capture_viewport(rm.Name)
else:
	print("no capturing today")

cycles.MaxPasses = oldpasses
cycles.Paused = False

To see this particular script in action you need a 3dm file with one or more materials that have the tag Showroom. Each material should have a good name. Select an object in your model, then run this script. It will create captures, one for each material on the selected object(s).