[ scummvm-Feature Requests-650427 ] temporal interpolation for animation

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Sun Dec 8 15:15:30 CET 2002


Feature Requests item #650427, was opened at 2002-12-08 21:45
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https://sourceforge.net/tracker/?func=detail&atid=418823&aid=650427&group_id=37116

Category: None
Group: None
Status: Open
>Priority: 1
Submitted By: Alex Eddy (arekkusu)
Assigned to: Nobody/Anonymous (nobody)
Summary: temporal interpolation for animation

Initial Comment:
Here's a suggestion for improving the visuals. This
goes beyond the original games, like the 2xsai/Eagle
modes, except this is temporal instead of spatial:

If a game's screen updates are fixed at e.g. 15 fps,
display them in the VM at 30fps, inserting interpolated
frames. The simplest method is to just alpha blend the
current frame at 50% opacity over the previous frame.

This will result in some blur for scrolling scenes, but
it may provide improved visuals for all the cel
animation where frame sequences have small differences.

Note: I don't know if this is feasible for all SCUMM
games since I only own two. Is the frame rate constant?

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>Comment By: James Brown (ender)
Date: 2002-12-08 22:15

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It's an intresting concept, but the code would be quite tricky. 
 
Animation speeds are constant per animation sequence, although 
variable between costumes/actors. 
 

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