• Maxon Cinema 4D

  No alpha channel ?

  Posted by Fred Shaw on January 6, 2010 at 5:48 am

  So I’ve checked all my settings and double checked. I have the box ticked for ALPHA channel, I have set output to millions+ but my movies have no alpa ??

  When I output I go via :

  Render > make preview >

  is there an alternative way to render? am I possibly missing a render module ?

  Appreciate any advise.

  THANKS

  Brian Bennett replied 16 years, 3 months ago 6 Members · 12 Replies
• 12 Replies

• 

  Randy Johnson

  January 6, 2010 at 9:52 am

  There will only be alpha if there is nothing there. So if you are using a sky object, or background object the channel will be white.

  /randy
• 

  Fred Shaw

  January 6, 2010 at 2:15 pm

  Thanks,

  I’ve tried with a variety of objects including a basic solid cube.
• 

  Randy Johnson

  January 6, 2010 at 6:59 pm

  Are you opening it in Photoshop? If so you have to activate it manually.

  When rendering there is an option to view the different Passes or Channels you should look there to see if there is an Alpha.

  /Randy
• 

  Fred Shaw

  January 6, 2010 at 10:26 pm

  Thanks again for your suggestions.

  I am opening in After Effects and there is no additional information for an alpha channel.

  cinema4D is not using the render settings I am setting up.

  I think this maybe because I am making a preview via:

  Render > Make Preview.
  I click Quicktime and under options select millions+

  So, this is not actually a render output ??
  not using render settings ??

  is there another way to output a render without a third party software ?

  THANK-YOU
• 

  Tim Shetz

  January 6, 2010 at 11:00 pm

  Try using RENDER TO PICTURE VIEWER

  That should use your render settings.
• 

  Maurice Jansen

  January 6, 2010 at 11:12 pm

  welcome in the minefield of the render setting’s of C4D 😉
  one little unconvenience is that you can check the alpha button
  for format’s that do not support this.
  you check you think you are good but it won’t work.
  please tel us more about your workflow and your output format.

  grt
  Maurice

  People saying they don’t make mistake’s often make nothing at all!
• 

  Adam Trachtenberg

  January 7, 2010 at 1:30 am

  Yes, that’s the problem.
• 

  Fred Shaw

  January 7, 2010 at 4:30 am

  Ah ha !
  thanks so much for your support.

  so I Just need to keep testing.

  I am starting with a basic cube just to get it right. has a picture map.
  NO background or additional scene info.

  OUTPUT:
  QUICKTIME
  1920 x 1080
  animation compression
  lossless
  millions+

  I did notice in render settings under:

  SAVE / Depth /
  there is only an 8bit / channel option
  and ALPA channel is checked.

  NO 16 or 32 bit option ?? is this necessary for alpa ??
• 

  Maurice Jansen

  January 7, 2010 at 11:01 am

  i tried your settings

  and they give me a alpha channel.
  you have to do what tim says
  use render to pictureviewer

  greet
  Maurice

  People saying they don’t make mistake’s often make nothing at all!
• 

  Fred Shaw

  January 7, 2010 at 3:04 pm

  THANKS AGAIN !

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