Hi,
have a look at the render to texture examples (grep for "attach"). You
create an RTT camera, attach your RGB texture as input, create an RGBA
output texture and attach this as the output, then in a shader do your sums.
jp
On 31/05/10 18:15, alessandro terenzi wrote:
I have an Image coming from a texture, and I'd like to add an alpha
channel with values that are an average of the corrensponding pixel RGB
values. Is there any example that could help?
Thanks.
Alessandro
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