8. Vertex and Fragment shader example

• Vertex shader:

  
  #version 300
  in vec4 s_vPosition;
  void main () {
      // The value of s_vPosition should be between -1.0 and +1.0
      gl_Position = s_vPosition;
  }
  
  

• Fragment shader:

  
  #version 300
  out vec4 s_vColor;
  void main () {
      // All pixels will be red:
      fColor = vec4( 1.0, 0.0, 0.0, 1.0 );
  }