Does what it says on the tin.

Code: Select all

gl.glMatrixMode(GL10.GL_PROJECTION);
GLU.gluOrtho2D(gl, 0, _screenWidth, _screenHeight, 0);

Set the projection to match your screen width and height and voila, the origin of the world coordinates in OpenGL is now in the top left hand corner and the world coordinates are matched to you screen coordinates.

Enjoy.

thank you

very usefull !

You are most welcome, I am happy to help if I can.