Re-timing Caches

[evanrudefx]

Hey,

I have a question about re-timing a cache. I don't need interpolation to slow it down, but rather I want the cache to play at normal speed, then gradually speed up. then go back to normal speed. I looked at time warp, but it only seems to remap the whole input and output rather than letting you gradually speed up or gradually slow down. How do I do this?

Thanks

[evanrudefx]

hmm, I found a way by using time shift by frame method and manually keying values. Is there another better way to do it?

[ikoon]

Well, other approach could be:

- have a "speed" detail attribute, animate it (value of 1 would be the default speed)
- then use Area CHOP to calculate the appropriate shifted frame number:
   http://www.sidefx.com/docs/houdini/nodes/chop/area
 

But still you need Timeshift and keyframes for the "speed" attribute :-/ it just may be convenient for some kind of effecs.

[evanrudefx]

alright, thanks, I will check this out

 

[rod.vfx.td]

timeshift  with key on channel is way to go!

or you can use timeshift with a expression $F with a multiplier by a spare float parameters, it is easy to control if you not need exact frame control.

 

[evanrudefx]

On 9/21/2017 at 3:36 PM, rod.vfx.td said:

timeshift  with key on channel is way to go!

or you can use timeshift with a expression $F with a multiplier by a spare float parameters, it is easy to control if you not need exact frame control.

 

thanks!