This small update includes another small test of hand gesture controls for users of Tilt Five™ glasses. If you have access to Tilt Five™ glasses, please try it out with the full game or the demo.

Some instructions (only for Tilt Five™ users):

• In the Tilt Five™ Control Panel under "Settings", activate "Allow Camera Frame Sender".
  
• In icosi-do, the test of hand gesture control is activated under SETTINGS > AR GLASSES > GESTURES > TEST. Through the Tilt Five™ glasses, you should then see a red, low-resolution camera image below the puzzle.
  
• The hand gesture equivalent to a mouse click/trigger pull is an OK/ring sign formed by thumb and one finger. When recognised, the inside of the ring becomes green in the camera image. To be recognised, the ring has to be closed and the inside of the ring has to be of a certain size but may not be too large. (You may want to adjust the apparent size of your hand by moving it closer to or farther away from the glasses.) Also, a large portion of the rest of the gameboard has to be visible, thus, please make sure that there are no other objects in the camera view.
  
• If you move your hand while forming the OK/ring sign, the puzzle is rotated based on the movements of your hand in the camera image. (You may change the direction of rotations under SETTINGS > CONTROLS > INVERT and the sensitivity under SETTINGS > CONTROLS > SPEED.)
  
• You may activate a white 3D reticle to select rods to solve the puzzles without wand. To do this, turn off(!) the Tilt Five™ wand and(!) select SETTINGS > AR GLASSES > CLONE VIEW > ON. Then form a clamp/pinch gesture without(!) forming a ring, i.e., your thumb should not touch any finger. The fingertips of the two fingers forming the clamp/pinch gesture should be marked by blue pixels in the camera image. If the reticle does not appear, make sure that your hand appears in the center of the camera image, and avoid spreading out the remaining fingers. While the white 3D reticle is on top of a rod, you may then select it by forming the OK/ring sign.
  
• Depending on which hand you use and which of your eyes is dominant, you might want to adjust the position of the reticle. To this end, form the OK/ring sign, which should fix the position of the reticle. While you form the ring, move your hand such that the reticle appears where you want it to appear relative to your hand. Then spread out the remaining fingers of your hand, while still forming the ring, i.e., you should form a proper OK sign with your middle, ring, and little finger being spread out. (Alternatively to spreading out your fingers, you can press "K" on the keyboard with your other hand while still forming the ring.) If the gesture is recognised, the red color of the camera images changes to yellow, and the relative position of the reticle is adjusted. Test the adjustment by forming a clamp/pinch gesture. If you are not satisfied, repeat this adjustment process.
  
• Note that the game menu cannot be controlled with hand gestures yet; however, if you are at "CONTINUE" in the main menu, showing a OK/ring sign can bring you back to the puzzle.
  
• Also note that the Tilt Five™ Glasses often crash after using the tangible camera. This shouldn't be a problem: just unplug the glasses and plug them in again, or reboot them in the Tilt Five™ Control Panel.
  

The limited field of view of the Tangible Camera is certainly a problem; in particular because the app only detects fingertips near the center of the camera image. Nonetheless, I'm quite enjoying this new way of solving icosi-do puzzles. Since the system has grown quite a bit, I would again appreciate feedback on this test from as many users of Tilt Five™ glasses as possible. Please leave a comment below this announcement, or in the discussion forum, or on the Tilt Five™ discord. Thank you!

PS: I just realised that the raised XE gameboard may confuse the hand gesture detection. For best results, please avoid the raised XE gameboard configuration and use the flat XE gameboard configuration instead.

UPDATE July 15, 2023: I'm making good progress on the next version; however, the two main pain points are still the lack of access to the wide-angle head tracking camera and the frequent crashes of the glasses' firmware. Both points appear to be outside my control. Since I don't want to test everyone's patience too much, I'll wait with the next version until there is some progress on either of these two issues.

UPDATE August 15, 2023: Sorry, no news: version 1.4 of the Tilt Five drivers and SDK are still in beta, and I've heard nothing new about access to the wide-angle head tracking camera. I'll just keep waiting.