Making Background Transparent

I have a texture and its background color components are 151,151,151.There is a circular blur object at middle of texture.
If i choose the back color black there is no problem.But my objects color is also black.

Is there any way to getting my object without back color? Thanks…

Yes, you can use the Alpha channel for transparentcy.
The transparentcy is based on Alpha values not color. Alpha = 1 non-transparent, 0= transparent, 0.5 simi-transparent.

Now if you use the TGA file format, it supports Alpha channel and you can create a transparentcy mask with the Alpha channel.

With BMP’s you would need two files one for texture and one for alpha mask.

Hope this helps.

Originally posted by Soulreaver:
[b]I have a texture and its background color components are 151,151,151.There is a circular blur object at middle of texture.
If i choose the back color black there is no problem.But my objects color is also black.

Is there any way to getting my object without back color? Thanks…[/b]

Thanks a lot.