flickering in retiming a mesh with unchanging topo

   1214   2   0
User Avatar
Member
28 posts
Joined: 12月 2015
Offline
after retiming a ripple sim , the result flickers a bit.
you can run a mplay to see the problem. it's subtle but there.
finnally the sim will be rendered as water,so that problem might be very obvious.

i didn't expect so far a flickering in a mesh not changing topology. it's more or less like the flickering when doing pyro retime.



please download the attachment and have a look, that may help me out. it confused me a lot.

THANK YOU GUYS.

Attachments:
RETIME_ISSUE_POST.rar (326.8 KB)
snapshot.png (1.1 MB)

hi hi hi
User Avatar
Member
2625 posts
Joined: 6月 2008
Offline
The simple solution is don't retime your sim. Typically a retime more than +/-50% in either direction is going to produce an anomaly. Try dropping your FPS down from 24 to 6. Then increase your end frame to 2400. Render that out, and play it back at 24fps to achieve your 0.25 retime value.
Using Houdini Indie 20.0
Windows 11 64GB Ryzen 16 core.
nVidia 3050RTX 8BG RAM.
User Avatar
Member
59 posts
Joined: 4月 2008
Offline
This doesn't seem to be a problem caused by retime node.
Check it again you'll find there is some deformation probelm on your REST geo, for example frame 30,
you got "slump effect" on the surface.
So I tried to smooth it out by adding a attribblur node, then the flickering disappeared.
Edited by Benyee - 2023年6月28日 11:51:28

Attachments:
RETIME_ISSUE_POST_v2.hip (986.8 KB)

  • Quick Links