Adobe After Effects 7.0 Professional ACE Set 4

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Adobe After Effects 7.0 Professional ACE Set 4

What is the purpose of the Shutter Angle in the Composition Settings dialog box?

It affects the shadow intensity cast by a Light layer. ✘ It affects the shadow diffusion cast by a Light layer. ✘ It affects the intensity of Motion Blur applied to a layer. ✘ It affects the brightness intensity applied to a Light layer. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which statement about transparency in After Effects is true?

If you import one layer from a Photoshop file, After Effects imports the layer mask as a straight alpha

channel. ✘ After Effects does NOT support Hue, Saturation, Color, or Exclusion blending modes applied to aPhotoshop file. ✘ If you import a layered Photoshop file as footage, After Effects merges the transparent areas and layermasks of all layers into one alpha channel premultiplied with black. ✘ When you import a Photoshop file as a composition, vector masks are NOT converted to After Effectsmasks. You must copy and paste masks from Photoshop to After Effects to edit them. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You have unchecked the preference Preserve Constant Vertex Count When Editing Masks. If you delete any mask vertices at a given keyframe, how will it affect the overall animation of the mask?

It will create a new mask on the same layer containing only the deleted points. ✘ It will delete every iteration of the same vertices throughout the mask's animation. ✘ It will tell After Effects to alter only the number of mask vertices at the current frame. ✘ It will delete the vertices, but keep the order of the vertex points the same, preserving interpolation. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

When should you use a Silhouette Alpha?

when you want to cut a hole through all layers below your silhouette using the alpha channel of that layer ✘ when you want to cut a hole through all layers above your silhouette using the alpha channel of thatlayer ✘ when you want to alter the alpha channel for all layers above your silhouette layer by using the lumalevels of the image ✘ when you want to alter the alpha channel for all layers below your silhouette layer by using the lumalevels of the image ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which statement about masks is true?

Default temporal interpolation for Mask Shape keyframes is Bezier. ✘ You CANNOT change the designation of the first vertex position on a mask. ✘ You can copy a Mask Shape keyframe into an effect point property of an effect. ✘ Mask Shape keyframes can all be selected at once by double clicking on the Layer Name. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You mask a video clip in the Composition window with a rectangular mask that is approximately half the height of the video and the same width as the video. You want to feather only the right-hand edge of the mask. What should you do?

decrease the Feather Property value in the mask options until you have the desired result ✘ extend the width of the mask off the left hand side; unlink the X and Y feather in the mask options;increase feather width ✘ scale the mask down vertically, and unlink the X and Y feather in the mask options; then increasefeather width ✘ increase the feather property value in the mask options; raise the mask expansion property value untilyou have achieved the desired result ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You create a composition that contains a video footage layer of a specific play in a football game. You want to adjust both playback speed and direction and add audio commentary. The output will be a DVD. You enable time remapping for the video layer and notice that in the places the video has been stretched, the action appears jerky.
What should you do?

choose Effect > Time > Timewarp; under the Timewarp pulldown, select Whole Frames; under the
Tuning pulldown, set keyframes for Vector Detail

✘

choose Layer > Frame Blending > Frame Mix; set the quality setting to Draft quality for the layer; enablethe Frame Blend switch in the Timeline panel

✘

choose Effect > Time > Timewarp; under the Motion Blur option, turn on Enable Motion Blur; selectManual from the Shutter Control pulldown; set keyframes for Shutter Angle and Shutter Samples

✘

choose Layer > Frame Blending > Pixel Motion; set the quality setting to Draft quality in the switchescolumn of the Timeline panel; enable Motion Blur for the layer; enable the Motion Blur and Frame Blend

switch in the Timeline panel

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

When should you use the Time Warp effect?

when you want a mixture of both Pixel Motion and Frame Mix ✘ when you have 32-bpc footage in which you are playing with time ✘ when you want to smooth out the motion of only one color channel ✘ when you want to decrease render time caused by Frame Mix frame blending ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

When should you use Frame-Mix method of frame blending?

when you want to speed up render time at the cost of lower quality Motion Blur ✘ when you have interpreted your footage at double its frame rate and want to keep the motion smooth ✘ when you are time stretching video footage and want to use motion vectors to smooth out the motion ✘ when you are time-stretching video footage, and want to create interim frames during repeated footageframes ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

You have taken video of a person examining a 2 X 2 foot piece of cardboard to which you have pasted bright yellow ping pong balls at each of the corners. This person is moving the cardboard as they examine it. You want to track the motion of the cardboard so that you can play a movie in its place. Which Track type should you select from the Tracker Controls panel?

Stabilize ✘ Transform ✘ Parallel Corner Pin ✘ Perspective Corner Pin ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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