title: Can we render shadow on a transparent Plane in SceneKit
body: <p>I have used shader modifiers for Plane but its not working. Can anyone suggest me how to solve it?</p>
  
  <pre><code>let myShaderfragment = "#pragma transparent;\n" + "_output.color.a = 0.0;"
  let myShaderSurface = "#pragma transparent;\n" + "_surface.diffuse.a = 0.0;"
   material.shaderModifiers = [SCNShaderModifierEntryPoint.fragment : myShaderfragment, SCNShaderModifierEntryPoint.surface : myShaderSurface]
  </code></pre>