GL.lines Drawing over Objects

The soloution provided Here Doesnt Works.

My shader

 lineMaterial = new Material( 
         @"Shader ""Lines/Colored Blended"" {
             SubShader {
                 Tags { ""RenderType""=""Opaque"" } 
                 Pass {
                     Blend Off
                     ZWrite On 
                     ZTest LEqual
                     Offset -1,-1
                     Cull Off 
                     Fog { Mode Off }  
                     BindChannels { 
                         Bind ""vertex"", vertex Bind ""color"", color 
                     } 
                     }
             }
         }");

I have tired a lot of variations. Changed offset and many more. But it simply doesnt works.

The geometry should be drawn underneath the Object. There is no proper solution avaiable on the internet, If you could help it would be really nice of you. Regards.