Hi Stefan,

Your suggestions are worthwhile. I will have no choice but
to create a routine that reads the textures of the FBO into a buffer
and prints it out, to see what is happening. This is discouraging,
but once I get this done, it should benefit all of us. Hopefully it
is no an error on my side :-)

   Gordon

Quoting Stefan Eilemann <[EMAIL PROTECTED]>:

>
> On 28. Jan 2008, at 21:58, Gordon_Erlebacher wrote:
>
>> Sorry Stefan, but it does not work. I do not clear the back buffer, as
>> there is no need to.
>> I am simply drawing a precomputed texture to the back buffer before
>> swapping.
>
> The compositor code does exactly the same thing in assembleGLSL, except
> that the texture is pixel data uploaded beforehand.
>
>>
>>
>> What seems to be happening is that the two textures in my FBO are not
>> swapping,
>> for some reason. Or that my shader program is not working as expected.
>
> Can you download the texture to see if it is correct? Or ist it
> possible to change your program to directly draw in the back buffer?
> Alternatively use a single-buffered visual, insert glFinish after each
> important call and debug it step-by-step.
>
>
> HTH,
>
> Stefan.
>
>
>> As usual: the more suffering you go through,
>> the more
>> of an expert you become!
>
> True. :)
>
>
> -- 
> This message has been scanned for viruses and
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> believed to be clean.



Gordon Erlebacher

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