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Found 44 results

  1. Hi, I'm struggling for some....time with this crazy align to object. I created a Polygon tube. Add normals. I put a montain on it. I scattered it. I copy point it with my plane. And the disaster is that with or without mountain, they are not align to the grid. I look at a hundred subject on that kind of problem, but I didn't find the solution. So I tried to start from a plane that I bended as a circle.. but still the same. Could you help me on this ? The idea, which is not mine is to try to do something like this. Thaks
  2. I have been following a tutorial by Entagma where vex is used to subdivide geometry. The tool spits out flipped normals at some places but that is fixed. The normals are correct however some polygons remain in a dark color and I am a bit confused on why that is. Help would be very much welcome! Divide.hiplc
  3. Hi guys, I'm using copy to point for architectural plan and I need my copied object always to perpendicular pointing to the inner side. Any help would be greatfull. Nemsi Copy2Point.hip
  4. Hi, I am going to make a flying coin. And I want to attach a teapot on top face of the coin with Copy SOP. The coin has a animation for flying. not single frame. So I want to know how to set up a Normal toward a coin face at center pivot. Please let me know. tube.abc
  5. Get polygon and normals in Python

    Hey all- I have a simulation running that is controlling the position and orientation of a grid that comprises just a single square polygon. Trying to use python to output the normal and center point of that grid. I can access the first hou.Prim, but I can't figure out how to get the polygon to get the normal. How do I do that? Thanks! Dave
  6. In the file I try to create the custom velocity with noise over time using normals. At first I did it with AttributeNoise, things go smoothly. Then I try to recreate it with Vop node, I can't have the normal distribute equally in all the direction like how I did with AttrNoise. Plus it move very fast over time, how do I reduce the movement of it. Also, can anyone show me how to do it in vex too. I add @Frame in vex, everything move in super speed. Thanks in advance. customVelocity.hip
  7. Hello everyone!! I have a wire animation and i want to "copy stamp" on a sphere, but the normals of the animation are wrong, and I can´t solve it in any way.... :S I tryed to rotate my wire on a "Z" axys, but there has been no luck... can anybody help me? I share my .HIP file and the reference that i want to achieve. THANKS IN ADVANCE! knitting_normals.hiplc
  8. Can any uv, modelling experts have a look at my geometry in the attached and tell me if my Normals are 'ok'? The geometry is an inverted pyramid shape hollowed out. I should have a normal perpendicular to each face in my geometry which deosn't seem to be the case. I'f tried every setting on the Normal SOP and nothing seems to make a difference. Also, when do you know if you should be applying normals to vertices, points or primitives?
  9. Hello, Can you please help me a little bit? I would like to animate the direction of my normals based on the anti aliased flow noise in point vop. Can you tell me which nodes should I use to get this result? Thank you
  10. Hi , I have a houdini hda that generating some poly data , but the normal of the poly is weird , i tried to add a normal sop as point or vertex in houdini with different face angle inside my hda , but still can't get a good normal ? I tried also to change the setting for the hda in maya interface (“preserver mesh locked normals”) , but it didn't help . I attached an image to the result i get in maya to show the problem , if i load my hda in cinema 4d , it's give me a good poly normal by default ! Is there any solution to get a sharp or good normal ? any help is appreciated .
  11. Hi all, Ive recently started looking in to using the wire capture and wire deform SOPs, all is going well however, when deforming on a simple bend i am having to compromise between mesh curvature and stretching Uvs. It seems that toggling between "Align Tangent only" and "Align Tangent with Att Normal" on the wire deform gives me these two different effects. My question is, is there a way to achieve a deformation that effectively smooths out the aligned tangent? (i thought maybe setting my normals as tangent u and smoothing them would help but it has no effect.) Aligned tangent only - Aligned with Att Normal - Thanks all! WireDefromIssue.hip
  12. Hello; Please help : I need to move my geometry perpendicular to existing Normals. Thanks. CrossNormal_01.hip
  13. HDA normals problem

    Hello to you ! I have a problem exporting Houdini Cinema 4D using digitals assets. I use this feature a bit and I have never had the following problem : As you can see in the picture, where the cutouts are grayscale, full of black dot appear and seems to be a problem of normal. I try to put the normal mode vertex, point, in different mode but nothing helps. The chrome version is exported in alembic and the nortmal works very well. If anyone to solution I would love to read it !
  14. Global Bump

    Hi everyone, I hope you all doing well. I am having a little problem with a shader I am building. Its a layered shader that I applied to some terrain. I am trying to add a global bump to get some better transition between materials. So far, I have a noise that is used as a mask to blend between materials and I also want to use the same mask to suggest that the underlying material is lower than the one above. How would you aproach this? I would be grateful for any help, all the best!
  15. Baking Normal Distance to Zero Thickness

    Hi! Can anyone point me in the right direction for how to determine on air-tight geometry the distance it would take to push each point inward along the normal (like the Peak nodes does, if you give it negative numbers) until it hits the other side, getting pushed in at the same rate? Right now if you use the Peak node with negative numbers of increasing magnitude on a mesh that has parts of variable thickness, the thinner parts will eventually start turning inside-out. What I want is for them to stop right before that happens and stay at a thickness of zero, so they squeeze down to invisibility, while the thicker parts of the mesh continue to push inward. Specifically what I need is a value that is that distance, which I can transfer over to vertex colors, because this is for a game asset where the actual squeeze along the normal direction will take place in the game engine, not in Houdini, and I need a value to clamp the push distance for, on a per-vertex basis. Thanks!
  16. Hi, I'm facing a problem and I can't find a solution by myself so I'm asking for your help ! I want the object that come form the object merge (1) to be oriented relative to the normal from the pieces coming from the foreach (2). I hope I'm clear enough ! Thank you for your help !
  17. PointVop Animated Texture

    Hello there! I'm having kind of a hard time to solve what seems to be preety straightforward. I'm using a grid, with a point vop to displace some points on it, but I can't seem to get the displace texture animated. I'm loading it to the texture sequence in texture; if I load a single frame, it works, but with the sequence nothing shows up. Heeeeelp! Thanks in advance.
  18. HDA | VOP | NormalBias

    Longest Axis, Octant, Boxify, Hexplanar Mapping
  19. Baking Out Normal Maps

    Hello all, So I'm using the gamedev-Games-Baker to bake out maps. But my tangent space normal is always rendering flat, whether I bake using the game dev tool to disk or extract a Normal image plan in a standard render using a camera . So I'm making the assumption I need another attribute or my normal are incorrect or my setup is - anyone ideas on what I'm missing or going wrong? Side notes; If I bake out the 'world normal' rather than standard or (tangent space normal) I do get a result but not with the standard normal. Any help and explanations would be great Thanks C.
  20. Hi guys, how can I edit the pivot to match a specific surface primitive or normal? I need to transform the arm of my robot in a specific way, so my pivot needs to be edited to match the surface normal. I already tried to edit it with " and ' but this only allows to move it but not to rotate it :/ Roboter.hiplc
  21. Hi, Struggling with materials (as always) in Houdini. I am using attributes to overide material values which works fine for roughness etc but bump values I dont understand. I want to use the principled shader but is there a way to take cd values from the mesh and assign as a bump using the principled shader? I used the material Builder to get some displacement onto the mesh but dont understand the correct workflow for this. So many options and nodes related to Bump/Normal/Displacement. Also transform space from object to camera etc and displacement bounds... So much to learn and figure out so currently watching the custom shading masterclass but if I cant figure out the basics its hard to get to the advanced level. I have attached a .hip with the issue I have. Can somebody give so advice on the most common and reliable method of assigning bump/displacement in shaders from attributes. Many Thanks, Duncan bumpTex.hiplc
  22. I have a popnet creating some particles with the POP spin, to have a random rotation in each particle, also Im copying a tube in each particle, the tube rotates as it supposed to, but when they hit the ground, the tubes stays with a random rotation as well instead of pointing Y. I'm thinking that if I use the normals instead of the POP spin I could blend between the N0 and N1 when the particle hit the ground, using the hit info from the POPnet, but truthfully I don't know how to achieve this .-. I'm using POPs and copy the tubes/coins to the particles because the particles born magicaly from the floor after a character hit the floor with his cane. If anyone could help me or have any idea I would appreciate it!!!
  23. Peak with normal

    Sorry for the spam about normals, but I have another question regarding normal. This is what I have, the template is done with polyextrude. When I apply peak, this is what I get. What I want is the same as the polyextrude kind of extrusion. I have tried normalise the normal length, but it work for me. Is there a step I am missing here? Cheers.
  24. Detailed displacement?

    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!
  25. I am trying to mimic a rail spline like you would use in Cinema4D. Essentially I would like each point normal to look at the point with the same index on another curve. From what I've found on getting a direction from two vectors is to simply subtract B from A. However, this does not seem to be the case. (See attached file) Is there more to it than simply subtraction? Align_Normal.hip
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