rotating head

applications/fsleyes/fsleyes_render.md

@@ -160,8 +160,31 @@ Now run the above, then run the below to make the final GIF:
 convert -delay 1 my_folder/image_annot_???.png -loop 0 my_annotated_movie.gif
 ```
 
+> Note: FSLeyes has/will soon have the option of adding annotations (text, arrows, boxes, etc.), so you don't need to use ImageMagick to add them
+
 > Exercise: Create a similar movie which scrolls through every 6th Sagittal slice
 
+### Rotating head through the GUI
+
+You can of course also create an animateed GIF directly through the GUI without the FOR look in bash and ImageMagick. Here is an example of how to create a rotating head:
+
+Open FSLeyes with a standard brain in 3D mode:
+
+```
+fsleyes --scene 3d -std1mm &
+```
+
+Then follow the below steps:
+
+- Change the colourmap to "Cool"
+- In the display settings (cogwheel) increase Blending to 0.5 and number of samples to 260
+- Change minimum display range to 5000
+- In the view settings (spanner) toggle "Movie mode"
+- Change movie axis to Z
+- Decrease Movie update rate to the minimum
+- Then save the GIF through Settings->3D view->Save animated GIF
+
+Et voilà! You should be able to see something like [this](data/rotating_head.gif)
 
 ### Scalped pacman