AnsweredAssumed Answered

Blank image when rendering after changing disalay state.

Question asked by Dan D. on May 28, 2013
Latest reply on Sep 20, 2016 by Edward Principe


I tried to improve a macro given in this forum by James Sharp and add another “layer” to the macro as follows:

Go over the all the configuration and display states and for each, renders each camera view.

I have a test model with a single configuration, 3 display states and 3 camera views – 9 renders in total.


The macro, in this case, should create 3 sets of 3 renders, 3 for each display state – 9 renders in total

Last time I run the it, it created the 1st 3 renders for the current display state, the 2nd 3 sets for the next display state but for the last display state it generated blank renders.

I added the command:

           status = swRayTraceRenderer.CloseRayTraceRender

right before the display should change but it did not help.

Should I reset VP360 after I change the display state? If yes than how?


If you test  this macro change the TASK_WORKING_DIR to the directory where you want the renders to be saved.



Dim swApp As Object

Dim Part As Object

Dim swConfMgr As ConfigurationManager

'Dim swDoc As ModelDoc2

Dim swConf As Configuration

Dim vConfigNameArr As Variant

Dim vConfigName As Variant

Dim vDisplayStatesNamesArr() As String

Dim vDPName As Variant

Dim countDP As Integer





' Preconditions: SolidWorks model is open and contains at least one camera.


' Postconditions: The cameras are turned on and off.




Option Explicit



' Utility struct to combine the name and ID of a camera


Type Camera_t

    Name As String

    Id   As Long

End Type


'Dim swApp As SldWorks.SldWorks


Sub main()

    Dim swModel                 As SldWorks.ModelDoc2

    Dim swModelView             As SldWorks.ModelView

    Dim swCamera                As SldWorks.Camera

    Dim lNumCameras             As Long

    Dim lCameraId               As Long

    Dim swFeature               As SldWorks.Feature

    Dim aCameras()              As Camera_t

    Dim bValue                  As Boolean

    Dim sFeatureName            As String

    Dim lTypeOfCamera           As Long

    Dim lTypeOfCameraPosition   As Long

    Dim TASK_WORKING_DIR As String

    Dim FILE_NAME As String


    Set swApp = Application.SldWorks            ' Connect to SolidWorks

    Set swModel = swApp.ActiveDoc               ' Get active document

    Set swModelView = swModel.ActiveView        ' Get the active model view for the active document


    Set swConfMgr = swModel.ConfigurationManager

    Set swConf = swConfMgr.ActiveConfiguration

    vConfigNameArr = swModel.GetConfigurationNames


    ' Get current directory (destination of render)


    FILE_NAME = InputBox("Enter Render Name")


    ' Check if a camera view is active

    Set swCamera = swModelView.Camera


    If (swCamera Is Nothing) Then

        Debug.Print "No active camera."


        Debug.Print "Camera is active."

        Debug.Print "  Name = " & swCamera.Id

    End If



    swModelView.Camera = Nothing                ' Turn off camera view


    Dim lOutFile As String

    Dim status As Boolean

    Dim swRayTraceRenderer, swRayTraceRenderOptions As Object

    Set swRayTraceRenderer = swApp.GetRayTraceRenderer(swPhotoView)             ' Access PhotoView 360

    Set swRayTraceRenderOptions = swRayTraceRenderer.RayTraceRendererOptions    ' Get and set rendering options


    ' Get the number of cameras

    lNumCameras = swModel.Extension.GetCameraCount


    Debug.Print "Number of cameras = " & lNumCameras


    ReDim aCameras(lNumCameras - 1)

    For lCameraId = 0 To (lNumCameras - 1)

        ' Valid ID:


        '  0 <= ID <= (ModelDocExtension::GetCameraCount - 1)


        ' IDs are reassigned if a camera is deleted

        aCameras(lCameraId).Id = lCameraId


        Set swCamera = swModel.Extension.GetCameraById(lCameraId)   ' Get the camera

        Set swFeature = swCamera


        sFeatureName = swFeature.Name                           ' Get the names of the feature and camera

        aCameras(lCameraId).Name = sFeatureName


        lTypeOfCamera = swCamera.Type                           ' Get the type of camera

        lTypeOfCameraPosition = swCamera.PositionType           ' Get the type of camera position

    Next lCameraId



    'Loop over configurations

    For Each vConfigName In vConfigNameArr

        Debug.Print "Configuration = " & vConfigName

        Set swConf = swModel.GetConfigurationByName(vConfigName)

        countDP = swConf.GetDisplayStatesCount()

        Debug.Print "   Count Display states: " & countDP

        vDisplayStatesNamesArr = swConf.GetDisplayStates()

        'Loop over display states

        For Each vDPName In vDisplayStatesNamesArr

           Debug.Print "   Display state = " & vDPName

           'activate display state

           'InputBox ("Press to switch Display")

           'MsgBox "Switch to Display " & vDPName, vbOKOnly

           swConf.ApplyDisplayState (vDPName)


           ' Now switch the view to each camera

           For lCameraId = 0 To (lNumCameras - 1)

              bValue = swModelView.SetCameraByName(aCameras(lCameraId).Name)

              If (bValue = False) Then

                 Debug.Print "Failed to set model view to use camera " & aCameras(lCameraId).Name


                 Debug.Print "Model view set to use camera " & aCameras(lCameraId).Name

                 lOutFile = TASK_WORKING_DIR & "render_" & FILE_NAME & "_" & vDPName & "_" & lCameraId

                 status = swRayTraceRenderer.RenderToFile(lOutFile, 0, 0)      ' Render

              End If

              swModelView.Camera = Nothing

           Next lCameraId

           status = swRayTraceRenderer.CloseRayTraceRender



    MsgBox "Done"


End Sub