o3d-webgl: Increasing the point size in shader to make points easier to see.

samples/o3d-webgl-samples/hellocube-wireframe.html

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@@ skipping 350 matching lines @@
 <form name="default_form" action="#" method="get">
   <p>
   Primitive type:
   <select onchange="changePrimitive(this.options[this.selectedIndex].value);">
     <option value="PointList">PointList</option>
     <option value="LineList" selected>LineList</option>
     <option value="LineStrip">LineStrip</option>
     <option value="TriangleList">TriangleList</option>
     <option value="TriangleStrip">TriangleStrip</option>
     <option value="TriangleFan">TriangleFan</option>
-  </select> (PointList might be hard to see.)
+  </select>
   </p>
 
   <p>
   Fill mode:
   <select onchange="changeFillMode(this.options[this.selectedIndex].value);">
     <option value="Point">Point</option>
     <option value="Wireframe">Wireframe</option>
     <option value="Solid" selected>Solid</option>
   </select>
   </p>
@@ skipping 13 matching lines @@
 
   varying vec4 pos;
 
   /**
    * The vertex shader simply transforms the input vertices to screen space.
    */
   void main() {
     // Multiply the vertex positions by the worldViewProjection matrix to
     // transform them to screen space.
     gl_Position = projection * view * world * position;
+    // Make points larger, so they can been seen.
+    gl_PointSize = 5.0;

[petersont, 2010/07/27 21:49:09]

You can do that?

     pos = position;
   }
 </textarea>
 <textarea id="pshader">
   varying vec4 pos;
 
   /**
    * The fragment shader derives color based on the position.
    */
   void main() {
     gl_FragColor = pos;
   }
 </textarea>
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 </body>
 </html>