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Search the Community: Showing results for tags 'displacement'.



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Found 39 results

  1. So I used the Triplanar Projection vop to give some geometry a diffuse texture. It was really easy, and I am happy with the results. However, now I want to add displacement to the same object with a displacement map which matches my diffuse texture. Since the triplanar projection vop only outputs color, how can I supply my shader the outN and doffset values that the Displace Texture vop supplies?
  2. hey everyone hope that y'all having an amazing time, just a quick question.., now i know sidefx got reed of some old stuff and introduce new cool stuff in the H16 but i have just notice that there are few shaders missing from the material palletes from the generics shaders like displacement, mantra surface, surface model are gone all we left with is principle shaders and it aint what i am looking for right now does anyone know how i can bring the older shaders back many thanks
  3. Workflow for this sample mesh is as follows: Create dynamesh, subdivide to 2 mil points Apply variety of alphas to mesh ZRemesh to 8k poly, subdivide to 7 mil, project details Use UV Master Create vector displacement with attached settings, base mesh is around 100k What am I missing here? Was able to get blackpixel's example working just fine: https://www.sidefx.com/forum/topic/46764/#post-211000 [sidefx.com] Should I try Mudbox? Renders and settings: 7 mil poly 100k poly with vector displacement 7 mil poly 100k poly with vector displacement 7 mil poly 100k poly with vector displacement UV Layout: ZBrush settings Houdini settings
  4. Hello, I'm attempting to recreate something similar to the reference geo in this link: I'm using a tube and then painting where I want my displacement but I'm not happy with the results as it isn't really resembling the reference image. Does anyone have any suggestions as to a different way to approach this? Thanks for taking a look. disp_geo_js_v01.hip
  5. Hello community, I'm trying to figure out how to get this effect, im pretty new to houdini and my thoughts are with some noise and displace along normals, I played a lot with vopsd and solver but I cant get the shapes and amount of detail, could this detail be done in mantra? (just wondering, I would prefer to do it just in sops) Here is the video (min 7:39) Any tip on how to achieve this kind of pattern/displace will be great, thanks!
  6. Hi there, is it possible to let Mantra only calculate displacement on areas where the camera looks at? I'm working with very huge oceans.
  7. Hey, it took some time to find out but the problem I have is due to the poly density of the flip mesh. I want to apply the displacement maps from the ocean surface onto that mesh but I get weird artefacts until I polyreduce the flip mesh. So it seems as if the displacement maps can't be applied to highly detailed flip meshes, can it? I surely can use the adaptivity settings but thats just a stopgap. Some areas will remain pretty dense and if I reduce everything I lose surface detail. Is there a special trick to apply those maps propperly? BTW: this problem only ooccurs when rendering with Mantra. When I load those maps into Redshift it works fine.
  8. I am trying to kill displacement when geometry gets a certain distance from camera. I've taken the geo bounds and was able to get that into black/white information in my shader. I am controlling the falloff with a fit range. I can multiply that black/white information against the displacement value and the geometry will not visibly displace. The problem I'm having is that it seems the geometry is still being subdivided in those areas. Anyone know how to kill that geometry creation when the displacement value is 0?
  9. Hey guys. So i've done a flip simulation and created a VDB mesh from it. Then created a new scene and added ocean waves from the shelf tool and added displacement to the VDB mesh using ocean waves. So now i'm happy with my displacement on my flip mesh, and i want to create an infinite(large ocean) and composite these 2 renders later in post production. How do i apply the same displacement on my VDB mesh to an infinite/extended/large ocean? I have attached a screenshot and my .hip file, hope you guys can help me out Ocean_Displacement_01.hip
  10. Hello! I am making a geometry deformer to simulate large waves for a student film (we don't have the resources or time to sim out a large tidal wave), and I'm having difficulties with the shader. I'm starting with the default ocean shader to get a feel for it, but the displacement and creation of the white caps and foam are being stretched and look wrong due to the deformer. My thought process is, is there some way to include my deformer in the displacement process so it is factored in when white caps/foam are made? If not, is there some other way to effectively use the ocean shader on a deformed grid (without losing the white caps/foam)? I'm really hoping to be able to have the white caps/foam on the crest of the large wave the same way it appears on the small waves created by the ocean displacement. My files are attached, I apologize for the messy VEX in the hda, I've been hopping between VOPs and VEX in its development. Also note: the displacement maps are set to .picnc instead of .pic because I am working in Houdini apprentice currently. Thank you! displacementworkaround_v01.zip
  11. Hi guys I have a flip tank simulation from ocean surface and it has a displacement map created from the ocean below. So as I render the flip object with mantra when "Allow Motion Blur" is off everything is OK but when I turn on the "Allow Motion Blur" it can not create the displaced geometry in render time and it takes for ever although cpus are on 100% load. And I should say the "Allow Image Motion Blur" is off and I just want motion vector pass from rendering. I tried different rendering engines and raytrace motion blur but no change. I try to create a small hip from that now. I would be really thankful if you can help me with this problem. Update: I added hip file and sorry for the size. ForumFiles.rar
  12. Hi Houdniks, I have a behaviour on my large scale ocean, which I can't break down to the source. It seems, the map breaks the neighboring edges or kind of a tiling problem. Don't mind the overall plastic look of the ocean, no serious shading until now :-) My grid is distorted by a noise, but the problem occurs even without the distortion. Any ideas how to fix this? Thanks in advance Dominik
  13. Hi there, I'm trying to wrap my head around renderman 20 in houdini 15.5. Now there's a tricky thing with displacements going on. When building stuff, I usually group the entire object in a single geometry node via subnet and combines, applying materials via the material SOP and specific groupings of the underlying geometry. this in turn creates a string attribute on the selected primitives with name “shop_materialpath” and the given path to the pxrWhatever shader. stuff shows up in RIS renders, everything behaves as expected. fine. this would behave equally, if I just added the “shop_materialpath” via AttributeCreate and the proper path to the shader by hand on a primitive. however, now I want to displace something. the only working way in renderman 20 seems to be to create a pxrDisplacement with some input (f.e. pxrWorley) and add the rendering parameters “Displacement Shader” (shop_displacepath) and “Displacement Bound” (ri_dbound) to the geometry node in /obj. Apply the shader, set bound > 0, displacement shows up in renders. fine. BUT: Now I thought: “Hah. Just transfer these parameters on a primitive base via AttributeCreate as well, done.”. However this doesn't seem to work. Instead I have to extract the geo into a second geometry node in /obj via ObjectMerge and again apply the said parameters on the top-level geometry node itself. Are “shop_displacepath” and “ri_dbound” not assignable to primitives by hand? Or am I missing a crucial step? Perhaps something else has to be applied as well? Any Ideas? -Marcus
  14. Hello, I have posted blog post explaining some concepts of volume displacement and how to do it with Arnold (in Houdini but possibly in other packages supporting Arnold as well). link Hope somebody will find it useful. Juraj
  15. Hi guys, i have this sphere where i have a geo displacement driven by color, to animate the color attribute i thought i could use another sphere that i can animate on the surface, the problem is that i don't know how i can do it. Anyone have some suggestions?
  16. Hello. I have been torturing myself with this for the past three days. I am trying to connect displacement maps to my blend shapes for extra detail with no success thus far. I managed to do it with bump mapping (as displayed in the image) but the result is too flat to be satisfying. The thing is that I cannot figure out the math to combine displacement maps to get an additive result (considering that 0.5 is the mid point) without getting an overall bloating of the model. If anyone has any suggestions on the subject I would be grateful. Thank you in advance
  17. So it seems like mantra always has to generate displaced geometry at render time even when I check bump only on the displace along normals node (same applies to the displace and displace texture node). So if I want to use just a simple bump map rather than using displacement to save render time it still has to generate the displaced geometry, which totally defeats the purpose of using bump to save on render time in the first place. Is this a bug or am I missing something, like a render setting or something? I attached a simple HIP file demonstrating this Second, what is the difference between the surface globals and displacement globals? Are the interchangeable or is there something unique about the displacement globals, like they automatically convert your position coordinates to object space or something? Then finally, and this is kind of a question on shading in general- when you output your global P to noise you need to convert your coordinate space to object space otherwise your noise will swim, I usually do this with a rest node. Looking inside the node it generates a rest parameter after that conversion. However what if you have a rest attribute on your geometry already, will that be overridden at render time? Furthermore, if you do want to use the rest position you generated in SOPs instead of P for noise do you still need to convert it to object space, or is it in the correct space already? There really isn't a lot of info on this type of stuff, any help would be appreciated Thanks bump_issue.hip
  18. Hi, here's my first project using Houdini. My goal was to get in touch with Houdini by transforming skin to metallic letters. I wouldn't have been able to realize this effect without your help here on the forum. Thanks a lot! dk
  19. Hi guys, I want to know how to control ocean displacement intensity. Like for example, I have this grid where I painted black and red. I want to have displacement just in the red area... use the Cd or the attribute disp_int (for example) as intensity multiplier. Another thing I want to learn is to have more than one displacement map combined... one with fast waves another more calm and so on... Cheers ocean_disp_intensity.hiplc
  20. I am having trouble getting noise working with my pyro sim in Houdini 15 with the new pyro 3 shader. I might be doing in wrong. I have enabled rest field in both my pyro solver and in my pyro object node. After enabling noise to my Fire Intensity Field, I get no noise even when I have dual rest fields. I have tried this for the Fire Temperature field as well. I have attached my renders with and without noise, my settings, as well as my hip file. M y goal is to get some more small color variations in my explosion post-sim. volumeNoiseHelp.hip
  21. I'm curious about the displacement vs the bump settings in Houdini's principled and mantra surface shaders. Is there any difference between bump and displacement with 'True Displacements' unchecked?
  22. Hi, I am new to mantra but not for rendering. There is a problem i found a solution for each program separately. I wonder how to solve this in mantra as well: I have a box. Box have bricks displacement. Some of the bricks pushes the edge of the box outsides. The edge is like splitting behind the scene, and the gap is filled with new micro polygons. they have no UV and the texture is distorted. at least that how it seems. (I must say mantra displace is really fast and accurate compare to modo's) Thanks for help !
  23. Hi! I'm trying to obtain a displacement noise on the particles surface, but I can't do it if I'm rendering particles as point, and if I use the copy with a sphere it start eating a huge amount of memory. Is there any other solution? Thanks! Marco
  24. Hello Community, ( I hope that's the right thread for this type of questions.) in the course of my second year studies at the Animationsinstitut in Germany I'm going to shoot a short film showing the metamorphose of a man, whose skin turns into printing press letters. Concept and references: My skill set mainly covers Compositing and the basics of Visual Effects. So I thought to use a project with real deadlines to boost my 3D skills. For some time now I gradually familiarize myself with Houdini. Feels like doing some kind of 3D Compositing. Like it so far. Now I definitively could need some help for the technical realization of the concept. Tutorials on the web are great, but don't cover this particular Effect. As can be seen from the images I want to randomly scatter letters across a surface. So far I experimented with displacement maps but I'm not sure if that's the right approach. I was told SOPs are the way to go. Is it possible to randomly instancing geometry so they move close together without overlapping? And if that was the case, would there be a procedural approach to generate the different letters/symbols? Regarding animation: I just want the transition to be animated. So we move from skin (live action) to roughly brushed plumb to the letters. Imagine the brushed plumb gets grooved and reveals the letters underneath. Any ideas and comments are very appreciated. (By the way, I put in my head to finish this project somehow by the end of July.) Thank you very much for your attention and interest. Regards, dk
  25. i have a test about houdini deform rbd sim,and i want to add a displacement shader to the inside group,but i don`t konw how to do it, i hope someone can help me, thanks https://www.dropbox.com/s/5ukpdic73zwbrwr/untitled.mp4