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Found 3 results

  1. [SOLVED] Colored smoke turns dark

    Hi gang ! I'm stumbling across a weird issue and I'd sure like to get some insights about this. I'm trying to color a smoke simulation (having seen Steven's volume III course). But I'm getting a weird issue that I can't wrap my head around. Basically my color field gets contaminated and the disease spreads on. here is what I mean: I'm using both types of pyro solvers, sparse and classic. This issue happens on both. Here is a screen of my simple scene: If you guys have any idea why this is happening that would be fantastic Cheers color_smoke.hip
  2. Hey guys! I've recently been doing some pyro work with the sparse solver adding pyro to my RBD sim's recently and I have been hitting this issue where if I make my voxel size too small my sim will freeze at some point during the sim. It always seems to freeze during the "advecting fields" step. Normally I'd chock this up to the machine running out of RAM or even VRAM but checking in on it the RAM never sees more than 50% usage and VRAM never goes up beyond 10-20%. CPU is pinned at 100% on all cores but the sim is not doing anything. I have not seen any error message in any pop ups or in the terminal either. Running Houdini 18.0.460 on Ubuntu 18.04. Anyone out there who has experienced anything like that? Thanks for the read!
  3. Hello guys, Just a quick question. I'm studying new Sparse system for Pyro Solver in H18. First change I could see is that Pyro Solver sparse has 4 inputs rather than 5 and “Velocity Update” input is missing. Let's say I want to use a Gas Disturbance micro solver for sparse smoke. How I can connect it to the solver? “Shape” tab in the solver already has a Disturbance option. But, of course, the result is different if I use only the Micro Solver connected to the last input (Forces). So I guess, this approach is wrong. How I can achieve same result using only Micro Solvers? And, first of all.. Does new Sparse Solver allow to use micro solvers? Many thanks!
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