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Found 101 results

  1. RBD to FBX error

    Hi All, I'm playing around with H18.5 - I made a little sim using the rbdbulletsolver SOP but when I plug that into a ROP/RBD_to_FBX I get an "invalid node name" error and no FBX is produced. Python error: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "labs::Driver/rbd_to_fbx::2.0, PythonModule", line 28, in export File "labs::Driver/rbd_to_fbx::2.0, PythonModule", line 75, in export File "labs::Driver/rbd_to_fbx::2.0, PythonModule", line 203, in build_individual_nodes File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.351/houdini/python2.7libs\houpythonportion\ui.py", line 1010, in decorator return func(*args, **kwargs) File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.351/houdini/python2.7libs\hou.py", line 13126, in createNode return _hou.Node_createNode(self, node_type_name, node_name, run_init_scripts, load_contents, exact_type_name, force_valid_node_name) OperationFailed: The attempted operation failed. Invalid node name Not sure what the deal is - could it be the RBD SOP node? Am I sending the wrong data into the ROP?
  2. Hi, I would like to ask how to export instanced geometry using Instance Node to FBX? I would like to get the instanced geometry out to work with it in Maya LT (that's why FBX) Thank you in advance!
  3. Houdini to AE

    Hey folk, I'm trying to export a camera and nulls from Houdini to AE. I installed this, but since the last update was 2017, I'm guessing it doesn't work with Houdini 18. I'm getting this error when I try to run it: Traceback (most recent call last):Traceback (most recent call last): File "<stdin>", line 1, in <module> File "houdini_2_ae", line 1104, in show File "houdini_2_ae", line 470, in __init__ AttributeError: 'NoneType' object has no attribute 'group' File "<stdin>", line 1, in <module> File "houdini_2_ae", line 1104, in show File "houdini_2_ae", line 470, in __init__ AttributeError: 'NoneType' object has no attribute 'group' Does anyone know how to fix this or if there are other methods to export the camera?
  4. Hi there, I want share for free my HDA for combine and export the cache of fluid from cluster system and convert it in VDB. Download here It's a open HDA so you can edit it if you want, please let me know if you do/did it and let me know if you use it in production. It's free, but a little donation is grateful Have a nice day Matteo video demo https://youtu.be/dLj2CaWam7Q
  5. Hi guys! I started houdini 3 month ago so sorry if my question is dumb but I'm really stuck on a problem for 2 hours now: I want to export an .obj file from a simulation (just one frame of the sim), so I tried many different ways: rop geometry, writing file, save the geo folder itself to gallery... But nothing is working and I can't find a way to solve this problem! I searched on the internet and there's almost no one speaking about that... Btw I'm using the apprentice version of Houdini so I can't use alembic files... I give u my project file so u can see more clearly what's going on. Thanks for helping Chain.hipnc
  6. Hi, I recently decided to recreate an old Maya project in Houdini. For that I had to export animated mesh from M to H so I used alembic. The 960f was 119Mb I did some modifications and tried exporting it as bgeo but it exploded to 106Gb so I tried abc which turned out to be 35Gb. And yes i added some attributes, subdivided few things and stuff, but it still seemed too much for the changes I made so I decided to explore. I exported animated abc from M (2019) of just 11f (step 0.25f) and that was 94Mb. I opened the abc in H with basic alembic node (default H18 settings) and export that with rop_alembic_output node straight from the alembic read node, with the same frame range & step. I've tried different formats (HDF5 and Ogawa (used by Maya) ) and settings here but all had pretty much the same size results of 1.5Gb. I didn't find any settings that would relay to compression or anything like that. Is it the same for you guys too? Does anyone have an explanation of this and perhaps a solution/idea how to reduce the abc size from H? Thanks Martin --------- Houdini 18.0.349 Maya 2019
  7. Hello wonderful people of ODForcce! What would be the best approach to export large amount of agents(10 000) / agents in general, to USD. Without unpacking. Is it possible? The "bakeskinning" lop node sorta works, but houdini crashes after exporting a couple frames. Cheers!
  8. Embed Texture in FBX

    Hey guys, I am trying to create a workflow with which it is possible to embed texture image files in a FBX. I know that I will probably have to write a python script to do so. Maybe one of you has already done anything like that and could help me out? Regards, Emil
  9. hey all! Imagine you have a whole bunch of stuff, add an exploded view node, animate the scale and then you want to export that animation to unity. So far I tried using filmbox fbx with but the animation is missing in unity but shows up maya. I also tried using rbd to fbx from the game tools and packing everything to rbd before but the model aswell as the animation break in that case. what is the correct / standard way to export this?
  10. Alembic pscale export

    Is there a workflow to export particle animation to Alembic with a pscale included in the file?
  11. Maya Camera to Houdini

    Hi, I'm trying to export camera from the Maya to Houdini, I removed all the dependencies and kept outside without grouping, I'm trying to export in alembic formate, but still, the alembic node in Houdini is unable to load the camera in Houdini... Any ideas for doing this? Thanks
  12. Hey guys ! I have a simple crowd agent that I put some anim onto in SOPs What I do on the agent doesn't really matter, what I need is to export the agent with the animation to FBX I tried simply exporting it with the FBX ROP, but the result was a point cache with no bones How is one supposed to export a Crowd Agent to FBX ? I searched online, and haven't found a working solution Attached is the simple setup in Apprentice (I know Apprentice can't export FBX. That's just an example scene from my home - at work we have the FX version) export_agent_fbx.zip
  13. Hello, I'm exporting pcloud through Rop alembic and I'm trying to force the alembic export to create the indexed value for each individual strings. The current mechanism seems to be automatic when I got more than a certain amount of points. Lets say, 5 points with 5 differents value will not indexed the attribute, but 100 points with 5 differents value will indexed the string attribute. Here a snap of what it gives in katana after importing this 2 abc to give a better idea. Anyone knows how we could force the mechanism event with a small number of points?
  14. How to Export RBD sim from Houdini to Maya with out loosing Uvs? I did a pretty heavy RBD sim in houdini but when i export the alembic to maya some of the UVs are missing, some of them are still there. Is there any other way to export RBD sim from Houdini to maya without loosing UVs ? Th anks in Advance.
  15. Houdini to maya

    Hi, Is there any way to export from Houdini procedurally and working in Maya with that model, I heard that procedurally doing this way doesn't give any issues and works fast in Maya while working with large super sets or even smaller one... I wanted to model a super set in Houdini and import in Maya and shade, light it... Please text If you do any exports from Houdini to Maya...
  16. Hi all, There's anyone who knows how to export a crowd sim in a single geometry? I got an example that have a single agent with some animations clips. Because of my company's pipeline I need to render it in 3d Max. Exporting a Alembic successfully but when I import it into Max every instance of the agent is a object. Is there a way to export a single object by agent? Thanks...
  17. Hello, here at the studio we want to use houdini more. We use shotgun heavily for flipbook/playblast discussion and feedback and we need a faster export from mplay. Whenever i hover over the export tab in mplay, the application freezes and loads hundreds of different quicktime video codecs. Is there a way to fix that? Its really slowing us down.
  18. Hello, I'm currently doing a render of my sim and when I try to export the sequence, it will stick with "classic" sRGB. However my goal would be to export it with the ACES color correction I have in MPlay. Do you think it is possible ? Thanks in advance.
  19. Hi guys, I made this simple sim in Houdini and exported it to C4D to render with Octane V4 as alembic. The problem is that in the first frames, there are those weird polygons on the mesh, maybe normal problems? I didn't manage to fix it so I'm ask if anyone here had this problem before and knows a solution for it. I will attach the render and my hip filie below. Thanks in advance. RnD_Viscous.v0.hip lan_rnd_sorvete.mov Edit: I'm sorry admin I messed up with the replies.
  20. Hey! I don't really know how to properly describe my problem. I have created a cloud vdb from polygon geometry. Everything works and looks fine but when I imported it into c4d for rendering I noticed I only got a "real" volume export in some areas. I tried to export and re-import my vdb in houdini, it looks perfectly fine. But as soon as I create a Points from Volume sop I get the same issue again. It seems like there are only certain areas where "real" volume is created. I have no idea why this is happening and need a cloud effect for a project asap. Would really appreciate ANY help.
  21. Greetings. I am the filthiest of noobs and i found a problem i havent been able to solve. I made a very beautiful flip fluid simulation in which two liquid sources mix together. (lots of tuts out there so it wasnt hard for me to do it)...... Both sources have different color attributes and density attributes and they mix flawlessly..... I was successfuly able to do the simulation YAAY!. The problem comes when our pipeline DEMANDS to render in Maya Arnold........ I export the VDB poligon soup via a Rop alembic output node...... and create an alembic file (it exports, it imports into Maya, no problem) BUT..... when i have it in Maya, I havent found a way to mask the fluids, so an AI mix shader lets me use two AI shaders as the two liquids and lets me mix them as they were in Houdini....... I understand there are "Weight attributes" that come with the alembic and they should be the ones helping me mask the fluids, but i really dont know how to do it...... Im a noob both in Houdini and in Maya. If anyone could help me showing me the workaround , i would deeply appreciate it.
  22. Final Export Error

    Hey all, First post here, literally my first mp4 render. I'm have it finished and rendered in MPlay. But when I try to export I hit this error. I'm running an Apprentice 17.5 My best guess is that it's angry because the licenses is on the D drive and I'm saving to the C but I don't think where I save it should matter. Any help is appreciated
  23. I've been researching this topic for some time and can not find any valuable information. I have a character with a skeleton and blend shapes. This character have multiple animations ether on Takes or in multiple files (with HDAs). I can not find any reasonable way to bring this animation to Unity. Making all animations in one timeline and splitting it in Unity or exporting multiple FBXes with the same mesh sound absurd to me. Can anyone recommend a proper workflow?
  24. Hi there! After spending long time trying and searching... here I am with my newbie question... I've an OBJ from C4D with different objects. Checked in Houdini's Geometry Spreadsheet all the paths of the primitives detect the names of the objects. I did a vellum simulation, and I want my alembic back to c4d with facesets for each OBJ primitive. How can I do that? Thanks in advance.
  25. Hi, a total beginner with a newbie question here. What I did successfully: I had imported a relatively simple piece of geometry in to Houdini. I made 40 copies of that object I created a dopnet in the same geometry node and ran a bullet simulation (I made a fancy pile of coins basically) I created a filecache for the last frame of the sim, since that is all I need (and want to export) I exported the frame as .abc and .fbx, however it is a single piece of geo, and more importantly, the mat ID's are all wrong I created a separate geometry node, imported the cached frame as a file, and tried exporting that as an .obj. I get a 25kb file and this error message "Save failed: No such file or directory" What I want to do but can't: I want to export the coins, preferably as separate objects if possible. If they could be instances, that would work beyond great, however I do not think that is possible. If all else fails, I just want to preserve the mat ID's (or smoothing groups) from the original file. I am banging my head against the wall here, any help would be greatly appreciated!