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Found 5 results

  1. Hey guys, I'm doing a pyro sim and had to interrupt the simulation before finishing due to needing the computer for other work. Now I wanted to continue the simulation from a certain frame but I've run into trouble. I duplicated on of my .sc files and made it a .sim (maybe this doesn't work?) And tried to continue but it restarts the pyro (from that frame) and just resumes with the current source being fed into it. What is it that I need to do here? Thanks in advance! Cheers, Jack
  2. Hello! I'm kind of new to Houdini and when I save a frame in mantra ( file > save fram as... ) it doesn't keep the real color which are displayed in my mantra render. I tried TIFF, TGA, JPEG 100% and nothing worked, colors are still different from the one coming out of my mantra render.. Any idea how to keep the exact same color ? Need help, have a nice day guys! Fay
  3. Hi there! I've been scripting in Maya for some years now and I decided to give Houdini a try but I still have some issues understanding how cooking works. I'm trying to implement my own cellular automata (a classical 3D Game of Life). The algorythm is pretty simple: my class first generates a virtual 3D grid which is made of livings cells (1) and dead cells (0). Then, at each iteration of a custom user input parameter, it analyses the current grid and does some work to modify it. But I have a hard time figuring how to do this. How can I have my script memorize its current state at each frame? For now the node just cooks entirely at each iteration, which is obviously pointless. Is there a way to execute only one method of my class? I thought about using a callback on the iteration parameter but I can't understand how it works in Houdini (I just made a "New Operator Type" and wrote my script inside the "Code" tab). Sorry if this sounds stupid, I'm still learning! And I couldn't find anything useful on Google.. Thanks in advance for your help!
  4. Hey guys I have a curiosity about render, its possible to render just a small rectangle area for a frame which contains the object that is moving and make that way to render all frames? like a per frame crop, to optimize the black render processing for mantra Thanks
  5. Hi, I've seen a few topics on this subject, but none actually solved the issue in the end. So here's the problem: I'm writing out a flip mesh (vdb) to disk (using the rop output driver), and the first 1-2 frames go just fine (takes +- 3 min per frame). Of course Houdini uses a lot of RAM for this, but the problem is that it doesnt flush it after its finished writing out a frame. The cache stays, and houdini doesnt free up the memory, causing the whole computer to slow down (it then takes like 3 hours to write out 1 frame!). Is there a way to clear the node cache/memory after cooking a frame?flushing the cache from the cache manager isn't really possible (since I'd need to stop the writing after every frame). After i stop the writing, the memory only frees up again after I actually close houdini. p.s. I have an AMD FX8320, with 12GB RAM and a weta digital 3TB green HDD. Using houdini 13, on windows 7.