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Found 4 results

  1. Pulse of Life

    Hello, now when it is finally published I would like to share you something I was working on during my first semester at the university. It is an university project done at Filmakademie Baden-Wuerttemberg and my role was Technical Director. Enjoy watching with loud sound and in HD Big thanks goes to our cool team, who did their best to finish this piece: Concept/Design: Alex Berweck Technical Directing: Juraj Tomori Film Music: Alexander Wolf David Sounddesign: Robin Harff Animation-­/ VFX-Producing: Vincent Waltan, Tina Vest Modeling: Mitja Öhm Director and Layout: Caroline Kießling FX & Simulation: Aleksej Skrypnik, Justin Braun Production Company: Filmakademie Baden-Württemberg GmbH Pipeline was centered around Houdini and Mantra and we really enjoyed the production of it. I did short breakdowns of a tools and workflows I developed for this project, you can check it here: https://vimeo.com/album/4471569 We used a lot of assets and relied heavily on instancing and I really liked how well Houdini suited into our pipeline, from fast viewport preview of packed disk primitives, to lightweight IFDs being constantly sent to renderfarm Also using digital assets enabled us to efficiently collaborate and transfer setups to the shots. Also big thanks to awesome people here at odforce, it was really great learning/help resource for our project. If you have any questions feel free to ask Juraj
  2. [Animated Short] Helga

    Helga*(working title) WIP thread for our animated diploma short film Logline A rodent-knight, his wife and his best pal.Celebrating the return from a bloody crusade, the two brothers in arms boozing tankard after tankard in a rustic tavern. The night was good if it wasn’t for the knight’s short tempered wife. Claiming her husband only for her own she antagonizes the two pals leading them straight into a fast paced bloody duel. Genre A 3 minute black comedy shortfilm. Miniature built set (eventually digitalized with photogrametry) combined with CGI characters. Characters A rodent knight: Ulfbert Short tempered wife: Helga Best pal: Snorri (he's joining soon) Sculpts Moods Techniques As the directors goal is to reach some creepy semi-realism lookwise, we are trying to rescue that handmade feeling of a real set over in CG. Miniature Set: A real set is currently being built (photos soon). Photogrametry: We are currently experimenting with using photogrametry and scanning the real set to digitalize it. Tests are in progress and i we can show images soon. The goal is to transfer the rich detail and special look of a handcrafted set into CG to harness the power and freedom of full CG animation workflows. In the optimal case we would end up with geometry and diffuse textures captured from set, reassembled and light/rendered in CG. Cameras could be full CG too, then. CG character integration: The characters will be CG in any case. Software Here's what our CG pipeline looks like. Animation, Rigging: Maya Effects, Cloth, Fur, Lighting/Shading: Houdini/Mantra Comp: Nuke Photogrametry: Agisoft Photoscan Why this thread? We, as the TD team, made the decision to run our CG pipeline partly with Houdini. Not because we are experienced users, but more because we want to learn the software Animation and rigging will be done in Maya and effects, lighting/shading, fur and cloth will be done in Houdini. As beginners with Houdini we are sure to encounter lots of questions (problems, workflows, best practices, pipeline organization) along the way, and we'd like to use this thread to raise them as they appear. See you soon for some progress Cheers, Helga Team
  3. Hey guys, i thought that this topic is probably too large and specialized for the WIP thread, so it probably fits in here better. This thread is about our attempt to design a well rounded lighting and shading pipeline for our animated full cg diploma movie with the working title "helga". (A task that is up very soon...) For more infos about it, please have a look at the WIP thread. Transitioning from Maya/Vray/Arnold/MentalRay Additionally this thread might become a good ressource for people that are very familiar with other rendering pipelines (like the classic Maya/VRay pipe) for example and want to try something different, but struggle to find equivalents to some of their old tested&true workflows. This is basically a huge motivation for this thread as well 1. Shading Assets What we plan to do is deploy our shaders as Shading HDAs. They are planned to be Subnets that contain all the materials needed. You create them in a seperate file and everybody uses them in their shots. (Automatic update for HDAs enabled). Assignment on the geometry is done as a "local edit" on the geo per shot instead of having an object merge node into your asset and assign it internally. We had our shading assets with object merge nodes and internal assignment of materials so far, but found that to be unpleasing when light-linking and takes are added to the mix. What is the common practice for shading Assets/HDAs in Houdini? The goal is to not have takes (renderlayers) for different AOV passes, only for different elements (like characters, foreground, midground etc.). An issue we have with the new setup is that Houdini often complains about the "F" variable of the surface model (Image attached at the bottom). 2. Global standardized additional AOVs Im not talking about light passes here, since those are standardized. I'm thinking about AmbOcc., world position, wide/small fresnel passes that can be turned on/off globally for all Helga shaders just like you would turn on/off RenderElements in VRay for example. I understand that Houdini gives us the freedom to care about this ourselfes, so how would we do this? Currently i envision a "standard_additional_AOVs" HDA embedded in our Shading HDAs that holds all the parameters and exports. Additionally a little Python UI would parse your scene for HDAs of this type and allow you to toggle/adjust them globally. You can then add them as image planes on your Mantra node (or maybe this happens automatically through the Python UI on toggle). Nested HDAs update recusively right? So when you have a newer version of an HDA embedded in another HDA it will update!? 3. Decoupling Displacement and Shading Can we separate the displacement from the shader nodes (but keep it at rendertime), just like VRay displacement sets do in Maya ?. The reason is, that we have displacement on almost every object (at least thats how it is at the moment...). It would be nice to be able to do global material overrides for the whole scene without loosing the displacement. 4. Blend materials What is the common practice for Blend materials with Houdini? 5. Alembic / packed primitives / Houdini Geometry / Crazy Highpoly Geo How do you tend to bring in your Alembic files? As far as i understand the docs, when you bring in an Alembic Geo in H13 (which we are using) as Alembic Delayed Load Archive it is super efficient. As we can solve our props really highpoly with Photoscan to capture tiny surface detail, this is def. an option if it doesnt blow our workflow. So in general, is bringing in Alembics in Houdini as ADLPs the same as having VRay or Arnold Proxy nodes in your scene and loading highpoly geo at rendertime ? Can it take the same polycounts? (10million upwards per asset approx. x 30 assets...) Will we put crazy traffic on the renderfarm network when we do this since all the geo data needs to be loaded at rendertime? The alternative is, as we do it right now, to have moderate polycounts on all geometries and displace them with the luminance of the colortexture. 6.Houdini LUT format issues As we manage the color through our entire pipeline with OCIO, we wanted to try and use the Sony Pictures sRGB LUT for the show. (It has a slightly more contrasty curve than srgb, which is ment to account for the dynamic loss of displays like monitors vs reality). However i couldnt bake a LUT out in a format that Houdini understand (.lut and .itx) that works. Somehow the highlights are always clipped. The LUT gives the same transformation in MPlay, HouRenderview and Nuke. When i bake the same transform out as .csp (cinespace LUT) for example, it looks right in Nuke....but Houdini cant read it. Thats a minor point though, standard sRGB will be equally fine. Pheww, that was a lot. Thanks for your attention, and i'm curious about your thoughts
  4. Helga FX Help Thread

    Hello guys, I'm the Cloth and FX TD on the project Helga that we do at the Filmakademie Baden-Württemberg. I will use this thread to ask questions and present my progress. At the time I'm working on the cloth of a character. At the beginning of August, I will start with fluids, destruction and particles. The deadline for the animated short is in March 2015. Please feel free to criticize any errors in my files or my workflow. I want to learn the best practices and grow as an FX TD. Initially I have a few questions: When the sleeve of the doublet of the character Ulfbert ist bend, it doesn't bend back. How can I influence the simulation so that it does? (https://dl.dropboxusercontent.com/u/23791935/ulfbert_doublet.mp4) I also want the sleeve as a whole to move forward. How would I do that? The cloth has to be at a certain position at the start of the shot. What's the best way to preroll the simulation. I would have the character 1 sec in T-Pose, then animate two seconds into the pose at the beginning of the shot. Cheers, Johannes
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