Thomas_Maher Posted February 15, 2018 Share Posted February 15, 2018 Hey everybody, I'm following some lessons about the reworked ocean tools in Houdini 16, and made a typical FLIP sim of a boat on ocean. But when I plug my compressed flip cache into the Particle Fluid Surface node and select "compressed fluid surface", I don't get any surface mesh at all - just the particles from the cache. Has this happened to anybody else or does anybody know how to get it work. Quote Link to comment Share on other sites More sharing options...
Atom Posted February 15, 2018 Share Posted February 15, 2018 Selecting the node is not enough, you also have to move the Display flag to the fluidsurface node. Quote Link to comment Share on other sites More sharing options...
Thomas_Maher Posted February 16, 2018 Author Share Posted February 16, 2018 The display flag is already on the fluidsurface node. The other modes of output conversion appear to work, I can view surface VDB and surface polygons/polygon soup. It's just the compressed surface that doesn't correctly display. Quote Link to comment Share on other sites More sharing options...
Atom Posted February 16, 2018 Share Posted February 16, 2018 (edited) On your output change the Convert To actual polygon surface. From your screen shot you are converting to a compressed cache, not polygons. Edited February 16, 2018 by Atom Quote Link to comment Share on other sites More sharing options...
Thomas_Maher Posted February 16, 2018 Author Share Posted February 16, 2018 Outputting a polygon surface does give me a result, but it takes a significant amount of time to cook on my computer. The compressed cache is what I want to view for faster previewing Quote Link to comment Share on other sites More sharing options...
Atom Posted February 16, 2018 Share Posted February 16, 2018 The typical workflow for fluid is to write out the compressed cache to disk. After that is done you can scrub it from a file much quicker. The next step is to do the same thing with the polygon surface. Write it to a cache then read it from the disk for better performance. This is the only way to avoid simulating everyframe when all you want to do is scrub to the next frame. Quote Link to comment Share on other sites More sharing options...
Thomas_Maher Posted February 16, 2018 Author Share Posted February 16, 2018 I'm feeling a little misunderstood. I've built a flip sim and have already written the compressed cache to disk. Plugging that cache into the fluid surface node allows me to view it as particles, surface polygons, or compressed fluid surface (among other options). Selecting Particles in Convert To displays the particles correctly as they appeared in DOPs Selecting Surface Polygons gives me a mesh of the fluid surface after a significant cook time Selecting Compressed Fluid Surface is supposed to give me a rougher and faster mesh as seen below The problem I am having is that instead of this rough approximation of the final surface, only particles are displayed. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.