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Very Slow Rendering

Posted: Wed, 21st Jul 2004, 6:13pm

Post 1 of 4

Superman09

Force: 600 | Joined: 21st Jul 2004 | Posts: 10

CompositeLab Pro User EffectsLab Lite User

Gold Member

Hello, i just got the program yesterday, and i'm really enjoying working with it however when i went to render my footage which was 1 minute long, and only had some light saber effects on about 200 frames, it took about 3 hours to render, i have a new Imac with a G4 800Mhz 256Mb ram, i've tried increasing memory, running only in os9, and downloading the updated quicktime, i render uncompressed without blending or paint or anything like that, If anyone has any suggestions this would be really appreciated, thanks a lot

Edit: also i forgot to say that i captured the film with Imovie, but i do have other programs i could use i only used Imovie because i find its the easiest to organize my movie, just another peice of information, i'm not sure if that may be part of my problem.

Last edited Thu, 22nd Jul 2004, 12:13am; edited 1 times in total.

Posted: Wed, 21st Jul 2004, 6:19pm

Post 2 of 4

Hybrid-Halo

Force: 9315 | Joined: 7th Feb 2003 | Posts: 3367

VisionLab User VideoWrap User PhotoKey 3 Pro User MuzzlePlug User PowerPlug User FXpreset Maker Windows User MacOS User

SuperUser

just talking with you on mirc wink But I'll write a solution in here for archiving reasons...

The problem seems to be caused by the video file you're working on. If you're unable to fiddle around with rendering out a new file to work on.. then in the render settings in alamdv set "background" to "green" and simple composite it ontop of the clip you rendered on in your editing program.

For many things, rendering out onto black rather than green for compositing may be a better idea as you will need a luminosity key for the transparancies. (As Arktic pointed out.)

Also, check this topic out...

http://fxhome.com/forums/viewtopic.php?t=11108&highlight=slow+rendering

smile
Posted: Thu, 22nd Jul 2004, 4:50am

Post 3 of 4

Superman09

Force: 600 | Joined: 21st Jul 2004 | Posts: 10

CompositeLab Pro User EffectsLab Lite User

Gold Member

i still haven't been able to fix it, i dont know how to use a green or black background and i dont have chromanator as of yet, another thing i tried that didn't work was make the 330+mb .DV file into a 3.5mb .mov file but the same slow rendering occured, there is about 2 seconds of total black in the beginning of the scene and just to render that takes about 5 minutes i would say, i understand that rendering can take a while but that is too long, any more info from people that may have had this problem or know of a way to fix it or something i may be doing wrong PLEASE POST
Posted: Thu, 22nd Jul 2004, 4:59am

Post 4 of 4

Hybrid-Halo

Force: 9315 | Joined: 7th Feb 2003 | Posts: 3367

VisionLab User VideoWrap User PhotoKey 3 Pro User MuzzlePlug User PowerPlug User FXpreset Maker Windows User MacOS User

SuperUser

just a quick explanation on what you could do with your effects on a black background...

In premier... drag it into the timeline above the clip you worked on in alamdv and in your project window click effects and search for chroma key. Drag this effect onto your clip with the adv effects in. Double click that clip and click "clip effects" unfold the chroma key effects folder and with the colour selector, select black. Fiddle with the options a little and you'll end up with the lightsabers layered over your origional footage.

you may also need to add a luminosity key, which I have little experience of...