15 Replies Latest reply on Jan 20, 2014 7:10 AM by 4500 Times

    Render to transparent issue

    4500 Times

      Hi,

       

      Could someone please advise on this issue:

       

      I have rendered off a set of PNG files with Alpha from 3DS Max with a view to creating a transparent background video.  When I import into AE the background is transparent (toggle transparency grid works).  I have also created a heat haze effect in the AE file using an adjustment layer and red/green particle layers (if you are familiar with the tutorial).

       

      If I play in AE or scrub the timeslider the chequered background is there and the heat haze is there.

       

      I used the following settings to render from AE:

       

      Quick Time video

      PNG Codec

      RGB + Alpha

      Millions of colours

      Straight

       

      The resulting QuickTime mov file has a black background and also shows the red particles layer from the heat haze (behind the main scene objects).

       

      Q.  I am sort of guessing that it is the haze/particle layers that are producing the black background in the final video.  Is there some setting for the haze/particle layers somewhere that I am missing?  Or is there another reason?

       

      I am not particularly experienced in AE so don't be afraid to state the obvious!

       

      Many thanks,

       

      T