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2014/10/16 ¤W¤È 08:20:56
android Programming Glossary: outpointAndroid OpenGL ES 2.0 screen coordinates to world coordinates http://stackoverflow.com/questions/10985487/android-opengl-es-2-0-screen-coordinates-to-world-coordinates float invertedMatrix transformMatrix normalizedInPoint outPoint invertedMatrix new float 16 transformMatrix new float 16 normalizedInPoint.. transformMatrix new float 16 normalizedInPoint new float 4 outPoint new float 4 Invert y coordinate as android uses top left and.. the inverse to the point in clip space Matrix.multiplyMV outPoint 0 invertedMatrix 0 normalizedInPoint 0 if outPoint 3 0.0 Avoid..
Android OpenGL ES 2.0 screen coordinates to world coordinates http://stackoverflow.com/questions/10985487/android-opengl-es-2-0-screen-coordinates-to-world-coordinates Auxiliary matrix and vectors to deal with ogl. float invertedMatrix transformMatrix normalizedInPoint outPoint invertedMatrix new float 16 transformMatrix new float 16 normalizedInPoint new float 4 outPoint new float 4 Invert y coordinate.. normalizedInPoint outPoint invertedMatrix new float 16 transformMatrix new float 16 normalizedInPoint new float 4 outPoint new float 4 Invert y coordinate as android uses top left and ogl bottom left. int oglTouchY int screenH touch.Y Transform.. gl 0 Matrix.invertM invertedMatrix 0 transformMatrix 0 Apply the inverse to the point in clip space Matrix.multiplyMV outPoint 0 invertedMatrix 0 normalizedInPoint 0 if outPoint 3 0.0 Avoid 0 error. Log.e World coords ERROR return worldPos Divide..
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