robert.magee Posted April 17, 2009 Share Posted April 17, 2009 Learn about the new Houdini 10 PyroFX workflow from Stephen Tucker, Production Specialist, Side Effects Software. This tutorial uses one of the production-ready Pyro FX presets to get you started. You then learn how to navigate the network, cache out a low-res sim, up-res to get more detail, then use IPR and the VEX Pyro shader to complete your effect. http://www.sidefx.com/index.php?option=com...&Itemid=305 Quote Link to comment Share on other sites More sharing options...
stevenong Posted April 17, 2009 Share Posted April 17, 2009 I have the page mirrored here. Cheers! steven Quote Link to comment Share on other sites More sharing options...
Guest Swann Posted April 18, 2009 Share Posted April 18, 2009 That was fast, Thanks SESI. Quote Link to comment Share on other sites More sharing options...
dior Posted April 18, 2009 Share Posted April 18, 2009 pyro is cool but rendering is too too too slow Quote Link to comment Share on other sites More sharing options...
michael Posted April 18, 2009 Share Posted April 18, 2009 pyro is cool but rendering is too too too slow compared to what? 1 Quote Link to comment Share on other sites More sharing options...
sanostol Posted April 18, 2009 Share Posted April 18, 2009 mhh, i have no monster machine, but rendering is quite cool. pyro is cool but rendering is too too too slow Quote Link to comment Share on other sites More sharing options...
Mario Marengo Posted April 18, 2009 Share Posted April 18, 2009 pyro is cool but rendering is too too too slow Efficiency is being worked on. So is filtering. Stay tuned. Quote Link to comment Share on other sites More sharing options...
mrice Posted April 19, 2009 Share Posted April 19, 2009 Efficiency is being worked on. So is filtering.Stay tuned. That's great! Its already impressive as is. Quote Link to comment Share on other sites More sharing options...
Fomal Posted April 19, 2009 Share Posted April 19, 2009 regarding the shader, without scatter everything in IPR is nice and fast. With scattering, knowing what to tweak can save you a lot of time. Loving the docs Quote Link to comment Share on other sites More sharing options...
bandit Posted April 19, 2009 Share Posted April 19, 2009 my question is;what is the sim time of this tutorial(lets say 20 frames) on the fastest computer. in my case,let alone rendering part,i have to invest my hours for the simulation. and i see from the lecturer that,rendering part is another story. are there any cheats to make things a little faster? and any possibility in the near future,that fluid solver gets faster? ps:my aim is not to attack nor compare king of software's with another package. Quote Link to comment Share on other sites More sharing options...
Jordan Posted April 19, 2009 Share Posted April 19, 2009 my question is;what is the sim time of this tutorial(lets say 20 frames) on the fastest computer. in my case,let alone rendering part,i have to invest my hours for the simulation. and i see from the lecturer that,rendering part is another story. are there any cheats to make things a little faster? and any possibility in the near future,that fluid solver gets faster?ps:my aim is not to attack nor compare king of software's with another package. Yeah, it will great to see user post their benchmark here in odforce for instance computer spec, setting, simulation time and rendering time and such. Quote Link to comment Share on other sites More sharing options...
keltuzar Posted April 19, 2009 Share Posted April 19, 2009 (edited) this to me has been the drawback from delving into houdini fluids- it is slow. I get the argument that you get all the control in the world, but it is hard to block out simulations if it will take hours to get a decent looking simulation going on. I do like the segmented fluid simulating on the farm and the up scaling techniques but that isn't helpful if an artist cannot see quick sims on his/her machine. if houdini can somehow make the speed bearably close to maya's then it will be compelling to work with it on huge scales. I am hoping h11? but I have to say, I love this new version so I will take another wack at playing with the new pyro fluid simulator Edited April 19, 2009 by keltuzar Quote Link to comment Share on other sites More sharing options...
Fomal Posted April 19, 2009 Share Posted April 19, 2009 Well, I've done a lot of work on the Pyro solvers and all the videos made for the H10 release were done on a single machine, with 2 (my laptop) or 4 (my desktop) cores. Blocking out your simulation on low res should be done in a matter of minutes. Starting with a resolution of 40 and slowly building up to 70. This is where most of the work gets done. After that the upressing. But this should only take a couple of iterations. I managed to get 3 or 4 up ressed simulation out every day. So not spending more then that amount of time on a simulation. This doesn't include modelling, prepping for DOPS and shading. The shading part is tricky and I know scattering can be time consuming. But for simming: these are my general benchmarks: the highest version of my low res sim should take no more then 15 - 20 minutes. In certain cases I bumped it up to a resolution of 100 - 150, in that case it takes about an hour. But normally this shouldn't be necessary. The up res sim will take more time, depending on your settings. But as a seperate pass you don't have to do this often. Getting the right look takes about 2 hours, using ipr and depth map shadows. I usually render everything over night. Once I was happy with the look of smoke, the depth maps didn't have to be generated anymore. So that saves time as well. Hope this gives a bit of an idea. Cheers Coen Quote Link to comment Share on other sites More sharing options...
Jordan Posted April 20, 2009 Share Posted April 20, 2009 Thanks Fomal to share the way he work out his sims. I believe in other off the shelve fluid tools like fumefx, I pretty much work the same way as what fomal told us which is blocking out the sim on low res and slowly upres it when we get what we desire. Therefore, I will get my hand busy with the new pyro tool soon. I didn't use H since 9.5. Is unfair if i make any usability comment now until i have tried it. Still, I would love to see someone post some hidden gems of how to optimize both the sim and the render of fluids. Merely depends on the intro level tutorial is just not enough maybe because of i'm a tutorial whore. Cheers, the new pyro tool looks nice though(from the demo). jordan. Well, I've done a lot of work on the Pyro solvers and all the videos made for the H10 release were done on a single machine, with 2 (my laptop) or 4 (my desktop) cores. Blocking out your simulation on low res should be done in a matter of minutes. Starting with a resolution of 40 and slowly building up to 70. This is where most of the work gets done. After that the upressing. But this should only take a couple of iterations. I managed to get 3 or 4 up ressed simulation out every day. So not spending more then that amount of time on a simulation. This doesn't include modelling, prepping for DOPS and shading. The shading part is tricky and I know scattering can be time consuming. But for simming: these are my general benchmarks:the highest version of my low res sim should take no more then 15 - 20 minutes. In certain cases I bumped it up to a resolution of 100 - 150, in that case it takes about an hour. But normally this shouldn't be necessary. The up res sim will take more time, depending on your settings. But as a seperate pass you don't have to do this often. Getting the right look takes about 2 hours, using ipr and depth map shadows. I usually render everything over night. Once I was happy with the look of smoke, the depth maps didn't have to be generated anymore. So that saves time as well. Hope this gives a bit of an idea. Cheers Coen Quote Link to comment Share on other sites More sharing options...
Fomal Posted April 20, 2009 Share Posted April 20, 2009 Still, I would love to see someone post some hidden gems of how to optimize both the sim and the render of fluids. Merely depends on the intro level tutorial is just not enough maybe because of i'm a tutorial whore. wink.gif I believe a new tutorial is in the making, covering the generation of the first demo (rocket) I will be hosting a technical evening this Thursday, together with Mario, to cover the new tools from a more in depth point of view. These should be posted on the sidefx website as well. Quote Link to comment Share on other sites More sharing options...
dbukovec Posted April 20, 2009 Share Posted April 20, 2009 You can make your renders much more faster if You increase the volume step size on the mantra node in the sampling tab. For previews try 0.5. Quote Link to comment Share on other sites More sharing options...
goldleaf Posted April 20, 2009 Share Posted April 20, 2009 I believe a new tutorial is in the making, covering the generation of the first demo (rocket)I will be hosting a technical evening this Thursday, together with Mario, to cover the new tools from a more in depth point of view. These should be posted on the sidefx website as well. Sweet! That's great to hear they will be posted online. Quote Link to comment Share on other sites More sharing options...
rodpacker Posted September 4, 2010 Share Posted September 4, 2010 Sweet! That's great to hear they will be posted online. hm, did this tutorial ever appear online somewhere? Must have missed it cheers rodpacker Quote Link to comment Share on other sites More sharing options...
dyei nightmare Posted September 4, 2010 Share Posted September 4, 2010 compared to what? with maya 2011 fluids... i have to agree... i mean, i love houdini so much, but the truth is the truth, maya fluids are solving faster. Quote Link to comment Share on other sites More sharing options...
RontheDon Posted September 5, 2010 Share Posted September 5, 2010 with maya 2011 fluids... i have to agree... i mean, i love houdini so much, but the truth is the truth, maya fluids are solving faster. whilst this might be true today, when "the compared top what" commented was posted Autodesk was just starting to read up on how to implement fluids into Maya => valid comment in my opinion back then Quote Link to comment Share on other sites More sharing options...
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