953u6015t 171 Posted September 24, 2017 Few tips and tricks to manipulate gas simulation. 1. Independent resolution grid. E.g. Overriding vel grid size independent to a density grid. 2. Creating additional utilities. E.g. gradient, speed, vorticity and etc which can be used to manipulate forces. 3. Forces via VEX and some example snippets. smokesolver_v1.hipnc P.S. Some of this technique are not Open CL friendly though. 39 30 Share this post Link to post Share on other sites
Arthur Ivanov 1 Posted September 25, 2017 Nice! Thanks for sharing! Share this post Link to post Share on other sites
bloodhawk 11 Posted September 25, 2017 On 9/23/2017 at 8:43 PM, 953u6015t said: Few tips and tricks to manipulate gas simulation. 1. Independent resolution grid. E.g. Overriding vel grid size independent to a density grid. 2. Creating additional utilities. E.g. gradient, speed, vorticity and etc which can be used to manipulate forces. 3. Forces via VEX and some example snippets. smokesolver_v1.hipnc P.S. Some of this technique are not Open CL friendly though. Thanks a bunch for the detailed setup! Im genuinely curious, where does one start if they want to learn these things? 6 2 Share this post Link to post Share on other sites
953u6015t 171 Posted September 26, 2017 (edited) Subjective question, at least this how I started: 1. Shelf tools, learn the basics and concepts. 2. Dive into DOPs OTLs/HDAs and look around to see how they are implemented. My examples are just a product of what those Side Effects guys implemented. 3. Read Houdini's documentation. 4. Be inspired by all the test that posted on Vimeo/YouTube that doesn't look like off the shelf imagery. Edited September 26, 2017 by 953u6015t 6 1 Share this post Link to post Share on other sites
953u6015t 171 Posted September 30, 2017 Another, focused on instancing smoke objects. Manipulating points with basic instancing attributes, i@cluster, v@scale and f@sourceframe. How to activate smoke object and holding a volume source. This method ideal for triggering independent gas simulation on impact data. Additional examples, e.g. grid clustering method for trail and non-trail which I'm merging from a separate thread. smokesolver_v2.hipnc 29 6 Share this post Link to post Share on other sites
953u6015t 171 Posted October 7, 2017 Filament like structure, combination of Smoke Solver, VDB Advect Points + Volume Rasterize Particles. smokesolver_v3.hipnc 29 8 Share this post Link to post Share on other sites
tamagochy 60 Posted October 9, 2017 It would be grate if you paste explanation in your custom stuff to fast understand what happen there)) But anyway thanks for sharing. 2 Share this post Link to post Share on other sites
953u6015t 171 Posted October 10, 2017 Good point. Something I have to improvise I guess. Initially I wanted to but was lazy, easier to put a setup than writing. I'll consider in future though! Share this post Link to post Share on other sites
Mjag07 4 Posted October 12, 2017 Either way . A huge thanks for uploaded the scenes Share this post Link to post Share on other sites
gemrg 0 Posted October 25, 2017 Awesome files, little notes in them would add a lot, but hey you took the time to make these for everyone so thanks! Share this post Link to post Share on other sites
ftaswin 17 Posted October 26, 2017 Thank you so much Share this post Link to post Share on other sites
feimos 1 Posted November 6, 2017 thanks very much ! Share this post Link to post Share on other sites
Bandu 1 Posted November 13, 2017 that's great, thank you ! Share this post Link to post Share on other sites
smooth_Yam 0 Posted November 17, 2017 thank you!This adds to my notes Share this post Link to post Share on other sites
jamnique 2 Posted December 12, 2017 These are amazing man! Thanks for sharing. It's going to take me months to dig through this. Share this post Link to post Share on other sites
fuat 9 Posted December 12, 2017 great. thank you very much Share this post Link to post Share on other sites
chrysl666 0 Posted December 20, 2017 tnnnnnnnnnnxs !! lots of infos Share this post Link to post Share on other sites
Dave Stewart 39 Posted December 21, 2017 What a goldmine of techniques and ideas, so glad I found this!! Wish I'd known about the independent resolution trick a few weeks ago, that one will really come in handy in the future. Thanks SO MUCH for taking the time to put these together and sharing!! --Dave Share this post Link to post Share on other sites
mestela 677 Posted December 21, 2017 Really cool, thanks for sharing. Share this post Link to post Share on other sites