The problem is that Glass distorts image behind it. The more IOR it has the more distorted image would be.<br>the work around would be Glossy + Transparent mix shader, that would keep reflections and still has aplha in it<br>
<br><div class="gmail_quote">2012/8/4 <span dir="ltr"><<a href="mailto:bf-cycles-request@blender.org" target="_blank">bf-cycles-request@blender.org</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Today's Topics:<br>
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1. Glass shader don't affect image alpha (Adriano Oliveira)<br>
2. Re: Glass shader don't affect image alpha (Antony Riakiotakis)<br>
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Message: 1<br>
Date: Fri, 3 Aug 2012 19:11:22 -0300<br>
From: Adriano Oliveira <<a href="mailto:adriano.ufrb@gmail.com">adriano.ufrb@gmail.com</a>><br>
Subject: [Bf-cycles] Glass shader don't affect image alpha<br>
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Is thare a way to make glass transparency affect image alpha, but keep<br>
reflections?<br>
I would like to have alpha in window's glasses, for instance.<br>
<br>
Adriano<br>
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Message: 2<br>
Date: Sat, 4 Aug 2012 01:56:23 +0300<br>
From: Antony Riakiotakis <<a href="mailto:kalast@gmail.com">kalast@gmail.com</a>><br>
Subject: Re: [Bf-cycles] Glass shader don't affect image alpha<br>
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<CAESZquvymfi7JxihnbD0npA_4fCR8=<a href="mailto:LGO7KFFGoh6nyqOUZfUg@mail.gmail.com">LGO7KFFGoh6nyqOUZfUg@mail.gmail.com</a>><br>
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An easy way to do this is by assigning an index to the material and in the<br>
compositor, apply alpha = x where the material is shown. I am not 100%<br>
certain this will work for you though.<br>
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