{"issue":{"title":"Suggested Reading Material?","user":{"login":"foobarHD","id":1222899,"url":"https://api.github.com/users/foobarHD","gravatar_id":"11b60553794f8a2b4721be1887bee0f7","avatar_url":"https://secure.gravatar.com/avatar/11b60553794f8a2b4721be1887bee0f7?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png"},"created_at":"2011-12-25T03:43:37Z","milestone":null,"labels":[],"state":"open","updated_at":"2011-12-25T03:43:37Z","id":2654300,"html_url":"https://github.com/mrdoob/three.js/issues/964","pull_request":{"patch_url":null,"html_url":null,"diff_url":null},"closed_at":null,"body":"Unfortunately, I didn't take any relative courses in school or college that would help me to deal with matrices and vectors. Any idea what I can read so I know what I'm doing? \r\n\r\ni.e. I'm currently trying to make my own control script that lets you pan with left click but only on the x/y plane regardless of rotating the camera or not. Also, restricting the rotation part so that you never roll. \r\n\r\nThe problem is that I'm only guessing what I need to do and not really understanding what I'm doing. If a few books / websites were suggested for me to read, I would be very thankful. ","number":964,"url":"https://api.github.com/repos/mrdoob/three.js/issues/964","comments":0,"assignee":null},"action":"opened"}