The Effect of Playing Un-Rendered Effects in Avid
Avid is a great program, but it does have a few quirks when someone tries to play an un-rendered effect. When dealing with these effects in Avid, some people will get an error while others will just get a black screen. Generally, however, just rendering the effect will take care of all the issues.
Step 1: Understanding Un-Rendered Effects
Un-rendered effects are simply ones that haven't been rendered, which generally allows the effects to be seen in the sequence. While users can add effects in Avid without rendering in them, some people have had issues with this.
Most people will add the effect and either keep playing the clip or keep editing it. Generally, one of three things can occur when an effect is added without being rendered. One, the effect will be added, and users can see it when they run the clip. This is the most desired effect. That way, users don't have to worry about taking the time to render the whole clip or sequence to see how the effect will look within the sequence.
The second possibility is that they will get an exception error. This is especially true in Avid Media Composer. There is also a chance that Composer will freeze, which will require the program to be forcibly shut down. The major issue with this is that the user will lose all the changes that have been made to the clip.
The third outcome that could arise is that users just get a black screen when they play the video. They will be able to see the effect if they simply scroll through the timeline. When, however, they try to play the whole sequence, that section of the video sequence will just be black, and/or there will be a red line along the title track of the sequence during the entire time when the effect should be playing.
Step 2: How to Avoid Issues with Un-Rendered Effects
While the un-rendered effect issues are annoying, there really isn't a fix for it. The fact that they are un-rendered is the issue. This issue, however, will not occur in every version of Avid. But, the only way to find out whether or not your version has this issue is to try it. Users should just save all their work before they do add an un-rendered effect. If not, they could lose everything.
If users can add un-rendered effects, and there are no issues, they should just continue to use un-rendered effects. There version of Avid can obviously work fine with these types of effects. If the software crashes, or users get the black screen, then they should probably go ahead and render all effects that are going to be added to a clip.
Step 3: Rendering Effects
Effects can be rendered either just how they look on the screen or in the Highest Quality (HQ) Render. The HQ render should only be used sparingly. It will cause the render time to be extended, and it may not actually anything to the effect.
If the effect looked great in the timeline, then just render it as it is.