Drag a clip to a position before or after another clip in the clip viewer. Transitions smooth the cuts between clips. They can be added to the beginning or end of a clip, or between two clips. 2 Choose a transition in the transitions palette. 3 Use the duration slider to modify the speed of the transition into or out of the clip.
Slower transitions take more time to render.
4 Drag the transition from the transitions palette to a desired location in the clip viewer. A transition icon appears in the clip viewer. A red progress bar indicates the time remaining to render the transition. Additional rendering processes such as creating titles or adding other transitions will add to the time it takes to complete the rendering. Click the transition icon in the clip viewer and click the Play button or press the Space bar.