Hey, Richard!

first of all, thanks for the amazing tool!

The playblast state doesn't work properly with the 3ds max 2020 version. Looks like Autodesk updated a makepreview daliog and UIAccessor solution doesn't work anymore, bet they also updated a CreatePreview function (finally!). So I added a few lines in Prims_3dsMax_Functions.py file. Kept an old part for earlier versions, but for 20000 and above,  added an updated CreatePreview function. Tested with  3ds max 2020 and 2021.
Changed lines: 1177 -1275.

Would be great if you could change this part for the next update!

Thanks!

        self.executeScript(
            origin,
        """
dnSendKeys = (dotNetClass "System.Windows.Forms.SendKeys")
dnmarshal = (dotNetClass "System.Runtime.InteropServices.Marshal")
insidedialog = false
global createPreviewVersion =(maxVersion())[1]
global pathstring = \"%s\"
global rStart = %s
global rEnd = %s
global sceneFps = frameRate

fn setoutput =
(
   window = (windows.getChildHWND 0 ("JPEG Image Control") )
   if window != undefined then
   (
      UIAccessor.pressbutton (UIAccessor.GetChildWindows window[1])[1]
   ) else
   (
      window = undefined
      window = (windows.getChildHWND 0 ("File Exists") )
      if window != undefined then
      (
         UIAccessor.pressbutton ((UIAccessor.GetChildWindows (window[1]))[2])
      ) else
      (
         window = (windows.getChildHWND 0 ("Create Animated Sequence File...") )
         if window != undefined then
         (
            if not insidedialog then
            (
               insidedialog = true
               createsequence = window[1]
               ptrstring = dnmarshal.StringToHGlobalUni(\"%s\")
               windows.sendMessage (UIAccessor.GetChildWindows createsequence)[13] 12 0 ptrstring
               windows.sendMessage (UIAccessor.GetChildWindows createsequence)[13] 6 1 0

               windows.sendMessage (UIAccessor.GetChildWindows createsequence)[15] 0x014E 8 0
               windows.sendMessage (UIAccessor.GetChildWindows createsequence)[15] 6 1 0
               dnSendKeys.sendwait ("{DOWN}")
               dnSendKeys.sendwait ("{UP}")

               UIAccessor.pressbutton (UIAccessor.GetChildWindows window[1])[17]
            )
         ) else 
         (
            window = (windows.getChildHWND 0 ("Make Preview") )
            if window != undefined then
            (
               makepreview = window[1]
               tmpstyle = 2
               windows.sendMessage (UIAccessor.GetChildWindows makepreview)[56] 0x014E tmpstyle 0
               windows.sendMessage (UIAccessor.GetChildWindows makepreview)[56] 6 1 0
               if tmpstyle == 0 then (
                  dnSendKeys.sendwait ("{DOWN}")
                  dnSendKeys.sendwait ("{UP}")
               ) else (
                  dnSendKeys.sendwait ("{UP}")
                  dnSendKeys.sendwait ("{DOWN}")
               )
               windows.sendMessage (UIAccessor.GetChildWindows makepreview)[33] 0x00F5 1 0
               UIAccessor.pressbutton (UIAccessor.GetChildWindows makepreview)[65]
               UIAccessor.pressbutton (UIAccessor.GetChildWindows makepreview)[37]
               return true
            )
         )
      )
   )
   return true
)


tmpanimrange = [animationrange.start, animationrange.end]
animationrange = interval rStart rEnd
ViewCubeOps.Visibility = false
    if createPreviewVersion<22000 then
    (
        DialogMonitorOPS.Enabled = true
        DialogMonitorOPS.RegisterNotification setoutput id:#myoutput
        max preview
        CreatePreview outputAVI:False percentsize:100 start:rStart end:rEnd skip:1 fps:sceneFps dspGeometry:True dspShapes:False dspLights:False dspCameras:False dspHelpers:False dspParticles:True dspBones:False dspGrid:False dspSafeFrame:False dspFrameNums:False dspBkg:True
        DialogMonitorOPS.UnRegisterNotification  id:#myoutput
        DialogMonitorOPS.Enabled = false
    )
    else
    (
        CreatePreview filename:pathstring outputAVI:False percentsize:100 start:rStart end:rEnd skip:1 fps:sceneFps dspGeometry:True dspShapes:False dspLights:False dspCameras:False dspHelpers:False dspParticles:True dspBones:False dspGrid:False dspSafeFrame:False dspFrameNums:False dspBkg:True
    )
ViewCubeOps.Visibility = True
animationrange = interval tmpanimrange.x tmpanimrange.y
"""
        % (
            outputName.replace("\\", "\\\\"),
            jobFrames[0],
            jobFrames[1],
            outputName.replace("\\", "\\\\"),
            ),
        )

• You need to login to have access to uploads.