 <p>use the following:</p> <pre><code>glEnable(0x8642); glEnable(GL_POINT_SMOOTH); </code></pre> <p>and then increase the size of the vertex using either one of these:</p> <pre><code>glPointSize(10.0f); //in the application // OR gl_PointSize(10.0f); //in your vertex shader </code></pre>