jME 3.10.0-beta1

I’ll look into it.

In the meantime, try to override this instead

    public void reshape(int logicalWidth, int logicalHeight, int framebufferWidth, int framebufferHeight) {

this new method gives you both the expected camera size (logicalWidth/Height) and the underlying framebuffer size, that might be different in high dpi screens when DisplayScaleMode is set to DISPLAY_SCALE_DPI_AWARE in app settings.

But yes, the old method should still work, this is a bug, i overlooked the possibility of it being overriden from a simpleapplication .