   Object visibility inside a transparent object
  I have an object with other small objects inside. I set the material of the parent object with alpha value, and I can see objects behind it but not the ones inside...Is possible to make visible the objects inside my transparent object?Thanks a lot...   
Working with transparency is always difficult and there is no universal way to make it work with all the different cases.Practically the only way to make it work always is to render the opaque objects first and then render triangles with alpha from back to front.The problem is that with GPU you don't work with triangles and there is no efficient way of sorting the triangles perfectly. So there will always be artefacts caused by incorrect triangle order. The case you are asking is simple and it can be solved by rendering the objects inside the box first and then the box.   ;  Thanks it solved my problem :-)   