How do you manipulate Textures from code?

[Dark Light]

I am wanting to draw a texture to the HUD, the texture I want to use is already in the game, I am managed to get it displaying fine. But I would like to change the black background to transparent and only leave the red channel. So I would like to do something like, new red = red, new green = 0, new blue = 0, new alpha = 255 - red.


Does anyone know how I can manipulate textures in this way?

 

[poosh]

Canvas.SetDrawColor(Canvas.DrawColor.R, 0, 0, 255);

 

[Dark Light]

Canvas.SetDrawColor(Canvas.DrawColor.R, 0, 0, 255);

All that will do it remove the green and blue channels, and set it to non-transparent. What I am wanting is to set the pixels that have no red in them to completely transparent, and the pixels that have some red in them to be semi transparent. So a pixel is no red is transparent, a pixel with 127 red is half transparent and a pixel with 255 red not transparent.

 

[FZFalzar]

You can't. Do it with an image-editing program, save it with the alpha channel, load it into KFSDK and make sure the Alpha setting is checked. There is no way to modify a Texture's individual data after sticking it into a package

 

[Skell]

If the texture has an alpha channel, you'll need it to be:

C.Style = ERenderStyle.STY_Alpha;

If it doesn't and you just want to make it so that it says full black is full opacity and white is no opacity, you'll need it to be:

C.Style = ERenderStyle.STY_Brighten;

EDIT:
or

C.Style = ERenderStyle.STY_Translucent;

Hope this helps!