Showing billboard (a cartoon character) without the background

Hi !
I have a 3D scene and I want to print a 2D cartoon character as a quad or a billboard in front of the scene. The cartoon character was draw with Paint Shop Pro (2D .jpg picture). The problem with my quad or the billboard is that it shows a rectangular form. I see the sheet of paper on which I draw my character.

How can I dismiss the area around the character so I can see the 3D scene in the background
Can I use a special color that I can remove when rendering



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Showing billboard (a cartoon character) without the background

  • Gopinath Ramamoorthy

    Since you're using Paint Shop Pro anyway, make sure the character is drawn on a transparent background and save the image as Targa (.tga) which has an alpha channel and will preserve the transparent background. Using a texture with an alpha component such as A8R8G8B8 should render the character correctly, just make sure Alpha Blending is enabled on the device.


  • jaegd

    yes, you must set your Alpha Key to the color which you want "transparent" you must set the flag to include Alpha Keys


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