Depends on the glass and the viewing distance. Up close with regular glass I can certainly still see the difference though it is lessened.
Originally Posted by Vaughn
I was thinking of a print I gave my MIL and FIL for Christmas. It was about 15" square printed on 16x20 paper (Adox MCC 110) and I had it professionally mounted and custom framed. I went with anti-glare glass though I know it reduces detail some, because I didn't know where they would hang it. They hung it over their mantle. They are very pleased with it and it pleases me to see it displayed when I visit, but where it is over the fireplace (which they use for that only rarely for special occasions - not much worry about heat damage but in any case it's theirs to hang where they wish) every time I see it I also think I might as well have printed it on RC paper and saved time, water and hassle. There's no way you can get close enough to see the difference without a ladder.
This is a quick iPhone shot of it, cropped to remove a person's face.