I need to create 100% transparent objects in Photoshop, in this example I create simple shape using Polygon Tool, Normal mode and anti-alias:
dl.dropbox.com/u/14972445/1.png (can't post links yet, 2 more post to go and I'll edit
)
Now I create a shadow on new layer below, delete the white background, select my shape using Magic Wand Tool (tried every possible Tolerance with anti-alias and without) and the best I'm able to get is:
dl.dropbox.com/u/14972445/2.png
It's even worse with other shapes, any ideas how to fix the final effects ugly edges? Maybe there's another, easier method of achieving what I want?
dl.dropbox.com/u/14972445/1.png (can't post links yet, 2 more post to go and I'll edit

Now I create a shadow on new layer below, delete the white background, select my shape using Magic Wand Tool (tried every possible Tolerance with anti-alias and without) and the best I'm able to get is:
dl.dropbox.com/u/14972445/2.png
It's even worse with other shapes, any ideas how to fix the final effects ugly edges? Maybe there's another, easier method of achieving what I want?