glut_248.vert

attribute vec3 aPosition;
attribute vec2 aTexCoord;
varying vec2 vTexCoord;

void main ()
{
//  vTexCoord = aTexCoord;
  vTexCoord = aPosition.xy;
  vec4 positionVec4 = vec4(aPosition, 1.0);
  positionVec4.xy = positionVec4.xy * 2.0 - 1.0;
  gl_Position = positionVec4;
}