This parameter is a no-op when you are already using a floating-point data type. GLSurfaceView. Using GLTRUE for normalized indicates that you intended to store the vertex parameter for color as a fixed-point data type to begin with and want to dictate the behavior GLSL uses when it comes time to convert it to floating-point. I have tried researching a lot but no luck so far. If the line segments are all connected, you can also use a linestrip, where the end vertex of a line is used as the start vertex of the next line (but. How do I draw a Line in OpenGL ES 2.0 Using as a reference a stroke on the Touch Screen For example If i draw a square with my finger on the screen, i want it to be drawn on the screen with OpenGL. Called to draw the current frame and call back from java layer of Just pack all the lines vertices (and colors of course) into one vertex array (and color array), so that vertex 2i and vertex 2i+1 make up line i and then draw all the lines in one go with. get width and height from java layer void JNICALL Java_com_greenline_OpenGL2JNILib_basicSetup(JNIEnv * env, Parameters: width is the width of the line (Default OpenGL lines are 1) x and y are the upper left corner position. This issue happens once the line started to render but once line ends then it's continuously rendering after that there is no issue.

I am rendering two lines simultaneously and also continuously using OpenGL ES 2.0 (NDK and C++ language) but randomly displaying unexpected lines(Attached screenshots). I am trying to draw a line with OpenGL ES 2.0 GLKit.

Opengl es 2.0 draw line