2019_08_21_ToDoToday

Cool to learn

Acces code: https://github.com/EloiStree/2019_08_06_HelloTechnifutur

• Deal with Quaternion
• Some function
  • InverseTransfrom
• Recentre your axis
• Quaternion != Commutatif

Rotatoin the basic

• Cool link

  • Learn what is the Quaternion

• Rotation

  • Matrix
  • Euler & Gimbal Lock
    • Curved Rotation: https://youtu.be/zc8b2Jo7mno?t=189
    • Locked axis: https://youtu.be/zc8b2Jo7mno?t=274
    • Gimbal lock: https://youtu.be/zc8b2Jo7mno?t=408
  • Quaternion
  • Playlist

• Quaternion Utility

  • Quaternion.identify
  • Euler()
  • Angle()
  • Dot()
  • Cross()
  • FromToRotation()
  • Lerp()
  • Inverse()
  • LookRotation()

• Classic

  • Transform.Rotate()
  • Transform.forward
  • Quaternion * DirectionVector

• Transform Utility

  • Transform.LookAt
  • TransfomrPoint
  • Transform.InverseTransformDirection
  • Transform.InverseTransformPoint

• Cross product Wiki Unity

• Dot product Wiki Unity

Additional

• Layer belong to layer mask
  • layermask == (layermask | (1 << layer))

//https://answers.unity.com/questions/50279/check-if-layer-is-in-layermask.html
    public static bool IsInLayerMask(int layer, LayerMask layermask)
    {
        return layermask == (layermask | (1 << layer));
    }