• Maxon Cinema 4D

  Polygon Textured with Alpha Becomes Visible When Passed Over Glass

  Posted by Wesley Kandel on February 21, 2009 at 11:19 pm

  Hey Guys – This is my first post on CGSociety! I’m pretty new to Cinema 4D and I’ve been working on animating a bird. To create the feathers, I textured a polygon with an embedded alpha. Everything looks great until the bird passes in front of glass. Then the transparent area of the polygon becomes partially visible. I’ve narrowed the problem down to the reflection setting in the glass texture. When I turn reflections off… the alpha in the feather works fine, but when I turn the reflections on the problems ensue. I need to keep reflections on, and I cannot figure out what to do! Thanks for any input!

  Here’s a link to a screen shot:
  [url]https://farm4.static.flickr.com/3610/3294918244_1575feb9e3_o.jpg[/url]
  It’s kinda hard to make out with all the shattered glass, but look at the wing tip. There’s a dark grey box around the feathers there.

  Brian Jones replied 17 years, 7 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Brian Jones

  February 22, 2009 at 6:12 am

  What are your Reflection Depth and Ray Depth set to in Render Settings? Maybe Ray Depth is too low?

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