Multi-View: Some Stereo 3D modes require a special drawing all the time

some 3d methods change the window arrangment, thus they shouldn't
toggle on/off just because there is no 3d elements being drawn

The optimized solution would be to draw only the left eye in those
cases, but there is some issue going on with that, so this commit will
do for now.

1 files changed, 9 insertions, 3 deletions

diff --git a/source/blender/windowmanager/intern/wm_stereo.c b/source/blender/windowmanager/intern/wm_stereo.c
index 639c6c1d4e6..13567518774 100644
--- a/source/blender/windowmanager/intern/wm_stereo.c
+++ b/source/blender/windowmanager/intern/wm_stereo.c
@@ -370,14 +370,20 @@ bool WM_stereo3d_enabled(wmWindow *win, bool skip_stereo3d_check)
 {
 	bScreen *screen = win->screen;
 
+	/* some 3d methods change the window arrangment, thus they shouldn't
+	 * toggle on/off just because there is no 3d elements being drawn */
+	if (wm_stereo3d_is_fullscreen_required(win->stereo3d_format->display_mode)) {
+		return GHOST_GetWindowState(win->ghostwin) == GHOST_kWindowStateFullScreen;
+	}
+
 	if ((skip_stereo3d_check == false) && (ED_screen_stereo3d_required(screen) == false)) {
 		return false;
 	}
 
+	/* some 3d methods change the window arrangment, thus they shouldn't
+	 * toggle on/off just because there is no 3d elements being drawn */
 	if (wm_stereo3d_is_fullscreen_required(win->stereo3d_format->display_mode)) {
-		if (GHOST_GetWindowState(win->ghostwin) != GHOST_kWindowStateFullScreen) {
-			return false;
-		}
+		return GHOST_GetWindowState(win->ghostwin) == GHOST_kWindowStateFullScreen;
 	}
 
 	return true;