GIF Animation - Disposal Methods 3

Dispose to
Background

Dispose to
Previous

The first and forth frame have transparency OFF and NO disposal. Frames 2,3 and 5 have white as transparent, and use method 6or 7disposal. Same in each example.

Method 6 (BACKGROUND)
Frame 1 shows (no disposal)
Frame 2 shows over Frame 1
Frame 2 now disposes of both
Frame 3 is shown & disposes
Frame 4 shows (no disposal)
Frame 5 shows over Frame 4
Frame 5 disposes of both
Frame 6 shows & disposes

Method 7 (PREVIOUS)
Frame 1 shows (no disposal)
Frame 2 shows over Frame 1
Frame 2 now disposes (but leaves Frame 1)
Frame 3 shows over Frame 1
Frame 3 disposes (but leaves Frame 1)
Frame 4 covers Frame 1 (no disposal)
Frame 5 shows over Frame 4
Frame 5 disposes (but leaves Frame 4)
Frame 6 shows over Frame 4
Frame 6 disposes (but leaves Frame 4)
Frame 1 covers Frame 4
begin again...

 

Method 6 - mixed

Method 7 - mixed

All frames follow a set event sequence:
1.) they appear
2.) stay set duration
3.) then are disposed

Disposal methods provide a difference in the animation when they are varied within a sequence.

Dispoal may effect more than just the one cell being disposed depending on the method.

Fundamentally,

Dispose to Background removes the current frame and all Frames below (earlier in sequence) regardless of previous methods.

Disposal to Previous removes the current frame, and any frames below (earlier in sequence) which were not set to a No Disposal method.

These are the frames used in the two animations.

Transparency is shown in each frame as it is set in the animation.

Disposal method is set to NO in frames 1 & 4, and to the method being demonstrated in frames 2,3,5, and 6.

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