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Very Slow RAM previews
Hi All,
Desperately need some help. I am working on a 10 minute project and have so far created 16 seconds of opening titles. I have several layers all crossing the screen at different depths on top of a floor set in 3D. I have a company logo as a nested composition, as it has a relection technique applied. There are two lighting effects and a camera. When I do previews it is painfully slow, we’re talking over 5 mintues to render the first 16 seconds. I have followed sevral tutorials with some complex effects but this is the first time I’ve seen it this bad. I have tried removing some of the more complex elements e.g. the pre-composited logo and the 3D floor, but it has only marginally improved. I am running the software on a Pentium 4 at 3.00Ghz and have recently installed a total of 4GB of RAM (I am aware that I need to make some changes to make use of all 4GB, but this issue was occuring with 2GB before the install).
Is the PC just too weak or am I just pushing it too hard.
Any help would be gratefully appreciated as I am struggling to even move objects around the screen without it slowing down.
Greg.
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2 Replies
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well…. complicated of effect heavy comps can take a long time to render. throw in 3d and hd, and they take even longer.
if you have nested comps in the main comp, you can pre-render those comps to help reducve render time of the main comp. make sure the post render option for the pre-render is set to import and replace usage and the pre-render will automaticly be placed in the main comp. note, if you need to change a pre-rendered nested comp, you will need to go back to the nested comp in the project window, make your changes, re-render that comp and replace the pre-render with the new one.
pre-rendering can save a lot on render time, depending on the effects and comps structure. you may even want to find other elements in the main comp that can be precomped and pre-rendered.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
[Dave LaRonde] “To make your work a LOT faster, turn off the lights if at all possible. Then watch things speed up.”
Turn on Draft 3D mode (between the Live Update button and the Shy guy above the timeline) and it will disable lights, shadows and depth of field. Turn off your comp motion blur switch and RAM preview and you should be flying again =)
Darby Edelen
DVD Menu Artist
Left Coast Digital
Aptos, CA
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