• Boris FX Sapphire

  Edge Rays on text disappearing when over white background – Gary?!

  Posted by Alex Bond on December 4, 2009 at 1:45 pm

  Hi there,

  I am trying to add edge rays to text, I’ve done this successfully in the past but when I add a white background the rays vanish – any ideas?

  V2 Text in Title tool with Edge Rays applied (Blue text, blue rays)
  V1 White Background

  To create the White background I’ve tried using Title tool to make a separate layer, I’ve tried adding a white background within the text layer itself and I’ve tried creating a white title tool graphic and video mixdown to create (effectively) a piece of footage.

  Any ideas?

  Alex Bond replied 16 years, 5 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Gary Oberbrunner

  December 4, 2009 at 7:54 pm

  Hi Alex. Rays normally add luminance (brightness) to the background; they have no opacity of their own. So if you add blue rays to a white background, you get… white. (It may be super-bright in the blue channel, but still white).

  But, you can turn up the Affect Alpha parameter to make the rays partially opaque; then instead of adding they’ll composite over the background (depending on how much alpha you add). Hopefully that will give you the look you’re interested in.

  — Gary
• 

  Alex Bond

  December 7, 2009 at 3:40 pm

  Cool, thanks again Gary

  A.

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