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Showing results for tags 'erosion'.
Found 11 results
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Hey guys, I've always liked the works of Daniel Arsham. He tends to do a lot of eroded pieces with some sort of crystals, usually. I was wondering if anyone had suggestions on how I can create stuff like the pictures below in Houdini. I have used booleans in c4d with a displaced sphere/object but found it not looking as detailed/nice as I would have liked. It also takes quite a bit of time to create each individual object that's put in the boolean. In Houdini, I thought of converting geometry to a VDB then putting it in a volume VOP with some sort of noise and subtracting it from the volume, then converting back to geo. But I'm not too experienced with Houdini tbh and was looking for suggestions on the details of a potential setup.
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Im facing some weird behavior with the Sidefx erode node in the 18.5 build 452. Not about the result, but it's very capricious to cook, and i can't understand why someone it work and sometimes now. To my feeling right now it's looks more like a bug, but maybe i missed something, or lat least, i was wondering if some other people has experiment the same and found a workaround? Note im using large complex terrains... ________________________________________________________________ Vincent Thomas (VFX and Art since 1998) Senior Env and Lighting artist & Houdini generalist & Creative Concepts http://fr.linkedin.com/in/vincentthomas
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good day. i have a terrain on which i would like apply lakes and an ocean. i have a draw mask indicating where i would prefer my lakes and ocean. how can i use the mask to create a depression in the terrain - basically an extrude in the negative? after i create the depression - i would then add the erosion hydro node - would that make sense? or should i apply the mask before the erosion node itself?
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I'm still fairly new to houdini but with my current project I'm looking for a way to use the heightfield erode nodes layers such as bedrock or something out of a COP2 network as a mask to scatter points over (then the points used to scatter trees and rocks, etc). Had a search of the forum but couldn't find anything. Thanks!
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Hey everyone, I really fell in love with some of the visuals created by Chaotic Atmospheres, link : http://chaoticatmospheres.com/flowing-city-map. They describe their process as a mix of displacement maps created in world machine all composited in PS, but I want to create and simulate this with velocity flows and possibly particles to create a more dynamic map for some of my architectural site plans. I've looked through and gathered different techniques for creating vector fields and I am a little stuck. I've used some of the techniques with manuplating vector fields with curves, creating a volume and driving trails, but the collision and erosion just hasn't produced the effect I want quite yet. With a few drawn curves on the grid, I can get a nice flow, but upon adding any more complex nurb systems, it just starts to group too many vectors. I might be going about all this wrong, but wanted to see if anyone could offer some more help or a more efficient technique. The end goal would be for the vectors to be able to be animated to visualize flow from the city boundaries outwards towards the edges. Thanks to anyone who can offer any advice/tips/help on this endeavor.
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Hi all ! Do you know why the terrain erosion output varies drastically based on the initial grid spacing ? And how to overcome this issue ? I would like to get the overall shape obtained with a grid spacing of 0.5 (erosion, sediment, etc...) with a better level of details for close up scene. For this scene I've used the terrain shelf tool "Dunes" and let all the parameters as they are expect for grid spacing Thanks Alex
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Dear community, I am currently playing around with heightfields in H17 and would like to create a little island for Unreal or Unity3D. I am using the erosion filter to generate shape-features as well as water and debris masks. I really like the distribution of water areas for rivers and lakes. However, except for distributing fluid-particles around these regions and performing heavy simulations which I could bake to meshes, I am out of ideas. Especially in non-planar areas I don't know any technique that would create realistic water surfaces. For a game-engine I would usually just need the top surface parts of the water. Does anybody have an idea on how to achieve that? I am thankful for any feasible approach or idea. Best wishes, Nicolas
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I need to add noise in erosion, it used to be in Houdini 16 but I can't find it in Houdini 17? Where is the parameter for noise?
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Hey Forum! Basic question here: When using Houdini Engine with UE4 - Do we need to manually bake out color maps and other uv maps such as those generated from the erosion tools in houdini (flow, debris etc.) ? I have no problem importing the .otl into unreal via Houdini Engine - but it is not clear how Unreal/Houdini share all the data that exists on my points in houdini… Thanks, Sam
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Hi all! Loads of cool stuff here. I'm looking for ideas/suggestions from Houdini veterans on how to recreate a process of melting or a differential erosion of the material. I have attached a screen cap of the closest example I've found in a video by Christoph Bader/Dominik Kolb called Area Contraction. Also attached a macro shot & GIF of my physical experiment of creating similar structures via melting. Sadly, I haven't been able to find any papers or simulation breakdown examples of Area Contraction or how to replicate it in Houdini. There are so many potential paths to take that I feel a bit lost - is it best to operate in volumes or VDBs? Or should I simply stick to particle solvers? FLIP liquid with attractors? FLIP liquid driven by temperature values (lava, snow, ice shelf tools)?
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Hi all! Loads of cool stuff here. I'm looking for ideas/suggestions from Houdini veterans on how to recreate a process of melting or a differential erosion of the material. I have attached a screen cap of the closest example I've found in a video by Christoph Bader/Dominik Kolb called Area Contraction. Also attached a macro shot & GIF of my physical experiment of creating similar structures via melting. Sadly, I haven't been able to find any papers or simulation breakdown examples of Area Contraction or how to replicate it in Houdini. There are so many potential paths to take that I feel a bit lost - is it best to operate in volumes or VDBs? Or should I simply stick to particle solvers? FLIP liquid with attractors? FLIP liquid driven by temperature values (lava, snow, ice shelf tools)?
