Hi,<br><br>Isn&#39;t our turbulence filter producing darker output than expected? The attached svg file is borrowed from the w3c test suite, and also contains the expected png output: our render looks draker.<br><br>I bumped into this trying to use turbulence as a displacement map: the displacement always globaly shifts the image downward and to the right. This is because the avarage value in each turbulence output channel is not 128 but much darker.<br>
<br>I think this is a bug... (maybe premuliplied alpha versus normal alpha color mode?)<br><br>Am I wrong?<br>jfb.<br>