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blend question
hello
i have a blendfunc such as : GL_ONE , GL_ONE_MINUS_SRC_ALPHA
the problem is that if i do a glColor4f( 1,1,1,alpha ) i can't get my
sprites to fade in /out. ( they get "whiter" )
Is there a way to get a "ghost" effect with such a blend func ?
Thank you
pat.
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 patrox
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10/28/2004 1:06:29 PM |
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patrox wrote:
> i have a blendfunc such as : GL_ONE , GL_ONE_MINUS_SRC_ALPHA
>
> the problem is that if i do a glColor4f( 1,1,1,alpha ) i can't get my
> sprites to fade in /out. ( they get "whiter" )
>
> Is there a way to get a "ghost" effect with such a blend func ?
Perhaps a blend function GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA is what
you really want? Otherwise you'll always get the full sprite color
value, the alpha controls only the amount of background color.
Malte
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Malte
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10/28/2004 2:02:42 PM
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