Issue with Mouse Move Interaction in Release Mode Using VTK 8.2

Support
1

Hi There,

I am encountering an issue with my project involving VTK 8.2 in Qt C++ environment. Specifically, when running my code in debug mode, all functionalities, including the mouse move interaction for dragging a 3D rendered output, work as expected. However, in release mode, while the application runs without errors, the mouse move function does not seem to respond. Other functionalities remain unaffected and work correctly in both modes.

This issue appears specific to release mode and seems to prevent interaction with the rendered output when trying to use the mouse move event.

Could you advise on potential causes or troubleshooting steps for this discrepancy between debug and release modes? Any insight into VTK interaction handling that may differ between modes would also be greatly appreciated.

Thank you for your assistance.

2

A typical reason for such issues (but unspecific to VTK) is uninitialized variables (as in debug mode for example under Windows, all variables get initialized automatically to a predefined value.

Can you provide example code that reproduces this behavior? What interaction style are you using? Are you intercepting the Qt mouse move events or the VTK ones?