Shader "Cg basic shader" { // defines the name of the shader 
   SubShader { // Unity chooses the subshader that fits the GPU best
      Pass { // some shaders require multiple passes
         CGPROGRAM // here begins the part in Unity's Cg
 
         #pragma vertex vert 
            // this specifies the vert function as the vertex shader 
         #pragma fragment frag
            // this specifies the frag function as the fragment shader
 
         float4 vert(float4 vertexPos : POSITION) : SV_POSITION 
            // vertex shader 
         {
            return mul(UNITY_MATRIX_MVP, 
              float4(1.0, 0.1, 1.0, 1.0) * vertexPos);
         }
 
         float4 frag(void) : COLOR // fragment shader
         {
            return float4(0.6, 1.0, 0.0, 1.0); 
               // (red = 0.6, green = 1.0, blue = 0.0, alpha = 1.0)
         }
 
         ENDCG // here ends the part in Cg 
      }
   }
}