MATLAB: Is the Simulink model unresponsive if I modify parameters within the world source file in the VR Sink block from the Virtual Reality Toolbox 3.0 (R13.0.1) on a UNIX or Linux operating system

Question

My Simulink model contains a VR Sink block from the Virtual Reality Toolbox. The model becomes unresponsive to mouse clicks after I change the world source file in the VR Sink block. For example, use the following steps to reproduce the problem:

1) Open the model VRBOUNCE and run it. Everything should work

2) Open the dialog parameters for the VR Sink block

3) Click the "Browse" button under the World Properties section.

4) Click "Cancel" on the file browser

5) Click "OK" in the VR Sink block parameters dialog box.

6) Now the Simulink model is unresponsive to mouse clicks. Note that I can start and stop the model by using MATLAB commands or by using the quick-key Ctrl-T.

I do not receive any error messages; however, I need to kill the MATLAB process in order to regain control over Simulink. This problem only occurs on UNIX and Linux systems.

Answer 1

This bug has been fixed for Release 14 (R14). For previous releases, read below for any possible workarounds:

This is a bug in the Virtual Reality Toolbox 3.0 (R13.0.1) with UNIX and Linux systems.

As a workaround, use the following steps to update the changes in the VR Sink block in your model and regain control over Simulink:

1) Make the changes in the VR Sink block and click "OK".

2) Close the Simulink model by using the Ctrl-W quick-key combination

3) Reopen your Simulink model.