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Images are low-res in presentation mode #32

Open splattater opened 7 years ago

splattater commented 7 years ago

For example, compare https://testing.slidewiki.org/deck/9842-1/slide/42748-2/42748-2:4/view
in full-screen mode with
https://testing.slidewiki.org/Presentation/9842-1/#/slide-42748-2
Especially the left images looks blurred in presentation mode.

[SWIK-1089] created by kadegraaf

splattater commented 7 years ago

It's the exact opposite for me (Chrome 57): it looks perfect for the presentation mode, but for the view mode the picture blurred. This might be related with scaling of images for different display/browser sizes.

by roymeissner

splattater commented 7 years ago

Perhaps this can be solved by supporting users in defining different slide sizes (default, widescreen, 1600*1200, etc..), and/or making the default slide size very large

by kadegraaf

splattater commented 7 years ago

It's a trade off between allowing quick loading of the deck, and ensuring high quality images. I think that there's some lazy loading in Reveal, using data-src instead of src for images. Not sure if we implemented that, or if that might be a cause of the problem

by huwfryer

splattater commented 6 years ago

Klaas Andries de Graaf Is this still a bug? E.g. I guess we don't have the exact reference to testing anymore?!
Also images are rendered by the browser. If something is blurry, this might be due to low image res of the image itself or browser scaling. file-service is not supporting to scale images serverside.

by roymeissner