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# Set alpha channel in pixel Bliting.

## 2 posts in this topic

In Bink video how to eliminate the black pixel setting the Alpha =0 during at playback time?

In Allegro5 I set a Background image and create a popup new window where I show a .bik video.

This .bik video has black backgroud and has not Alpha Channel when the frame is decompressed.

I need set transparency where black pixel appear. So the main window background can be visible.

In a call to Blit_RAD_3D_image (Blit a 3D image onto the render target) I have this:

      if ( rad_image->download_textures )
{
Submit_texture( pixels,
}

//
// Submit the vertices.
//

Submit_vertices( dest_x,
dest_y,
x_scale,
y_scale,
alpha_level,
is_premultiplied_alpha );


VS2010 C++.

Thank you.

Edited by codewill
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~disregard this post - I didn't read the question correctly the first time~ Edited by Khatharr
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~disregard this post - I didn't read the question correctly the first time~

Sorry. I modified the post. I hope be more clear.

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