Is Opengl Development GPU Dependant?

Question

I am developing an android application in opengl ES2.0.In this Application I used to draw multiple lines and circles by touch event in GL surfaceView.

As opengl depen

Answer 1

1. Why don´t you provide one working example, so people actually could help?

2. From your code: I can´t see where do you create your line? Something like:

   @Override public void onSurfaceCreated(GL10 gl, EGLConfig config){
       ...
       mLine = new Lines();
       ...
   }
   

3. As others already mentioned, in onDrawFrame always clear the buffer:

   public void onDrawFrame(GL10 gl )
   {
       // Erase CL_COLOR_BUFFER
       GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
   

4. Set the camera:

   // Set the camera position (View matrix)
   Matrix.setLookAtM(mViewMatrix, 0, 0, 0, 3, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
   //
   // Calculate the projection and view transformation
   Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mViewMatrix, 0);
   

5. Draw:

   line.draw( dx, dy, ux, uy );