osmanertasdiken Posted October 14, 2019 Share Posted October 14, 2019 (edited) Hi I'm currently working on a scene where a tiny lizards jumps and starts walking on the water, Reference: https://youtu.be/M6UsKJUmq2A?t=102 (1:42) The Lizard is about 2cm so the scale is really small. I also came across to Johnny Farmfield's setup for collision ripples(https://vimeo.com/301863777) but I'm not so sure whether or not something like this would work better with Flip sim. Any suggestions approaching this sort of effect? Edited November 1, 2019 by osmanertasdiken Quote Link to comment Share on other sites More sharing options...
Feather Posted October 17, 2019 Share Posted October 17, 2019 (edited) Flip kind of falls short on small scale simulations and ripple effects, especially things that need sheeting. Its better to work with geometry for this sort of thing OR use realflow if you have access to it. On a side note, Rhythm & Hues has a 2D ripple solver. It took a colored input as the source of the ripple, could take animated sources and incorporate obstacles as well using a similar color mapping method. It was the most useful little tool for all sorts of things. I haven't seen one since and every time I try to google something similar I can't so much as find an algorithm to work from. If anyone has something similar or can point me in the direction of an image based ripple solver I would really appreciate it! Edited October 17, 2019 by Feather Quote Link to comment Share on other sites More sharing options...
StepbyStepVFX Posted October 18, 2019 Share Posted October 18, 2019 On 14/10/2019 at 2:33 PM, osmanertasdiken said: Hi I'm currently working on a scene where a tiny lizards jumps and starts walking on the water, Reference: https://www.youtube.com/watch?v=M6UsKJUmq2A&t=62s (1:42) The Lizard is about 2cm so the scale is really small. I also came across to Johnny Farmfield's setup for collision ripples(https://vimeo.com/301863777) but I'm not so sure whether or not something like this would work better with Flip sim. Any suggestions approaching this sort of effect? Indeed, FLIP works best for mid/large scale sims. I think a ripple solver, plus some custom particle system can do the trick. Just in case you would need some ref for a ripple solver, Entagma did a series of videos 2 years ago : Quote Link to comment Share on other sites More sharing options...
HM_2020 Posted October 18, 2019 Share Posted October 18, 2019 You could try faking it all with a high res grid and vellum, depending on your shot. Are you more interested in the way the lizard floats and slightly deforms the water? Or more a realistic splash and ripples? Quote Link to comment Share on other sites More sharing options...
osmanertasdiken Posted November 1, 2019 Author Share Posted November 1, 2019 On 18/10/2019 at 5:42 AM, StepbyStepVFX said: Indeed, FLIP works best for mid/large scale sims. I think a ripple solver, plus some custom particle system can do the trick. Just in case you would need some ref for a ripple solver, Entagma did a series of videos 2 years ago : Of course Entagma got it I completely missed this one. So far I was using geometry noise based on Impact points but this way seems much better, I will definitely change my current set-up to ripple solver Thank a lot! On 18/10/2019 at 11:27 AM, HowardM said: You could try faking it all with a high res grid and vellum, depending on your shot. Are you more interested in the way the lizard floats and slightly deforms the water? Or more a realistic splash and ripples? I'm trying to replicate this reference video as realistic as possible, I think vellum and ripple solver combined together should do the job. I'll give it a try thank you Quote Link to comment Share on other sites More sharing options...
Librarian Posted November 1, 2019 Share Posted November 1, 2019 Just to find file hm ...btw it's on Sidefx forum-- JK something file ripple ..this it's just me messing around Quote Link to comment Share on other sites More sharing options...
osmanertasdiken Posted November 1, 2019 Author Share Posted November 1, 2019 This is the tool that I've been working on before I saw your comments; This version I was using the geometry noise, but just tested it out with ripple solver definitely gives it more natural look so I will transfer to that. At the moment my main issue is figuring out how to bend only the front side of the water around my object like this; Currently I'm transferring P attribute on to the grid and it's not really bending like that, any suggestions? Quote Link to comment Share on other sites More sharing options...
osmanertasdiken Posted November 1, 2019 Author Share Posted November 1, 2019 13 minutes ago, srletak said: Just to find file hm ...btw it's on Sidefx forum-- JK something file ripple ..this it's just me messing around That is beautiful Quote Link to comment Share on other sites More sharing options...
Librarian Posted November 1, 2019 Share Posted November 1, 2019 (edited) Combine and Fake it with this two files found it JK_Ripple_Plus_B.hip Odf.hipnc Edited November 1, 2019 by srletak Quote Link to comment Share on other sites More sharing options...
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