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Home: Isadora: General: Blurry images

paulbrown83 Novice Apr 24, 2008, 6:05 PM Post #1 of 9 (1455 views) Shortcut Blurry images Can't Post I have an interesting problem that we have discovered over time. We are projecting 800x600 images out of Isadora and all of the output settings at 800x600 all the way through to the projectors. When I compare the images projected with Isadora with, say, an image set as a wallpaper image (or with Preview or Photoshop), the Isadora image looks a lot more blurry than an image output from the operating system. Has anyone seen this before, or does anyone have any suggestions for what I can check to try and fix this problem?

william User Apr 24, 2008, 8:42 PM Post #2 of 9 (1452 views) Shortcut Re: [paulbrown83] Blurry images [In reply to] Can't Post How are you connected to your video projectors? DVI, VGA, S-Video, or RCA?

paulbrown83 Novice Apr 24, 2008, 9:34 PM Post #3 of 9 (1447 views) Shortcut Re: [william] Blurry images [In reply to] Can't Post They are all DVI connectors (I have 3 video outs) going into a switcher. The odd part is that any image output by the OS is very crisp, but through the same physical outputs, the images produced by Isadora are blurry. I will dig a little further as time allows (hopefully this weekend) but I wanted to pose the question to the forum to see if anyone had encountered this before.

william User Apr 26, 2008, 10:03 AM Post #4 of 9 (1414 views) Shortcut Re: [paulbrown83] Blurry images [In reply to] Can't Post Have you tried bypassing the switcher and going straight to the projector? Does the image show up in Force Stage Preview as blurry, as well?

paulbrown83 Novice Apr 28, 2008, 7:34 AM Post #5 of 9 (1357 views) Shortcut Re: [william] Blurry images [In reply to] Can't Post No, it is not the switchers, or anything hardware-related, because the operating system can display things in full crispness, whether it's a photoshop window, preview window, or just a wallpaper on the desktop. That said, I think it is fixed now, and I really didn't do anything to fix it. I should have taken pictures of the effect so I could post it here, but I didn't get around to that yet. The only change I made was that I opened up the IsadoraCORE version of the software and ran it unlicensed temporarily, and it did not blur the image. At that point I thought it would just be easy to buy the upgrade to the CORE version of Isadora and not worry about it, but then I moved my license back to the proper place and started up the older version of Isadora and it worked. I don't know what exactly happened, but I'm gonna leave it alone for now.

Mark Coniglio TroikaTronix / Moderator May 1, 2008, 7:57 AM Post #6 of 9 (1305 views) Shortcut Re: [paulbrown83] Blurry images [In reply to] Can't Post That's very strange... if you ever figure out how you had the blurry images, please let me know. Best, Mark - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Mark Coniglio / TroikaTronix Creator of Isadora

karlakr8 New User May 20, 2008, 1:43 PM Post #7 of 9 (1108 views) Shortcut Re: [Mark Coniglio] Blurry images [In reply to] Can't Post i have similar observation. any time i project via isadora, the image is much more blurry than the direct quicktime movie. this happens with 2 m rca cable, 5 m vga cable and 10m s-video cable at similar strenght.... http://krach.uni.cc . . . . .

Matt Novice May 20, 2008, 5:45 PM Post #8 of 9 (1104 views) Shortcut Re: [karlakr8] Blurry images [In reply to] Can't Post You should post the patch you are having the problem with. Are you zooming or rotating the image? -Matt

hal Novice Jun 3, 2008, 4:32 PM Post #9 of 9 (914 views) Shortcut Re: [paulbrown83] Blurry images [In reply to] Can't Post Have you tried with Open GL turned on and off. It seem possible to me that even if everything Source - Stage - Projector are all set to the same resolution that the Open GL texture is still getting tri-linear filtering applied to it. That filtering will blur things, it will make things look much better if they are being scaled up or down, but probably degrades the image a bit if it's not being scaled. -- Hal Eagar - Media Effects Artist http://haleagar.com Director - Digital Performance Institute http://digitalperformance.org DPI-office 646 442 4435 | Hal-cell 917 257 8440

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