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Found 63 results

  1. 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.
  2. Hi, I'm running into a little issue where I'm trying to randomize colors over bunches of lines. Basically what I'm doing is making a small bunch of lines, say 6 close to each other. Then I copy that bunch over a distance around 500 times. (See attached file) After I divide all the lines into 3 groups with group by expression and I assign a different color to each group. However this splits up All the lines created, what I want is to randomize by initial bunch so each bundle of 6 lines has a mix of the three colors. What happens now that I want to avoid is the possibility of 1 "Bunch" being 99% one color which can happen working with this many lines. Doing the group split before copying and transforming will give me the exact same randomization thus giving you a repeating pattern. How would I best go about this? Randomized bunching issue.hip
  3. Hey folks, proud to present LYNX Tools, a collection of production proven open source tools to accelerate your workflows! All mentioned tools are free to download via the links below and are licensed with a full HoudiniFX license. All Houdini Assets have complete Houdini native documentation available. Repository: https://github.com/LucaScheller/VFX-LYNX Lastest stable release: https://github.com/LucaScheller/VFX-LYNX/releases Please give them a test drive, so we can improve them further Roadmap | https://trello.com/b/f8Pgip7s/lynxpipeline So far there are three tools: LYNX_force_general | Tweak your sims with this all purpose & intuitive force field. Built to mimic force fields in other DCC applications, but with support for more features and a natural Houdini user experience. https://www.lucascheller.de/vfx/2019/03/24/vfx-lynx-houdini-force-general-asset/ LYNX_fabric | Create fabric/weave patterns with ease. Perfect for creating that holiday sweater you never wanted. https://www.lucascheller.de/vfx/2019/03/16/vfx-lynx-houdini-fabric-asset/ LYNX_velocity | Get control of your velocities via an intuitive UI or groom them for absolute fine tuned control. https://www.lucascheller.de/vfx/2018/11/01/vfx-lynx-houdini-velocity-asset/ More info on my website, including full release logs: https://www.lucascheller.de/blog/ Houdini User Group Munich Presentation: https://vimeo.com/334887452
  4. Why is my Color Transfer Offset?

    Hi Guys, Im trying to achieve this stepped layering effect on my mesh and figured the correct approach woould be to use a shatter boolean with multiple cubes (which i have colored differently) and then transfer my Cd attributes across however although i am getting the hoirzontal cuts across my mesh in the correct place as intended, the color transfer is offset (almost as if my exactly half of the original cubes height) Why is this occuring / how can i make sure the color transfer occurs only between the cut lines ? Thank you
  5. Smoke density based on ramp

    Hi everybody, I am new to houdini and i am already scared. I know how to emit pyro from colors by using ramp than a delete node with a $CR < 0.1/.5/.8. on my emitter it work but i want to control the "density" of the emission based on the gray level of my ramp/paint node. Meaning white zone = 100% emission dark zone = 0% thanks you
  6. Hey there, first poster speaking So i have a id map of a landscape (an example is in the attachments) and i wanna get terrain masks defined by each color (green for grass, blue for water and so on). so i somehow need to transfer the textures's Cds to the heightfield to sample them, but i cant figure out how... :S in the end i would like to just define a color and the wrangle spits out a mask. sounds really basic but i have no experience using volumes. did research way too long for this, for something which surley could be done in minutes :S would really appreciate any help!
  7. Hi; Is it possible to transfer colors from geometry's material to points? I found this thread: https://www.sidefx.com/forum/topic/12562/ But I want to get texture from any input geometry, procedurally. Thanks.
  8. Hey, I'm trying to get this stick to points constraint to update every frame so I can have this cloth sort of peel down over time. Thought setting 'create constraints' to 'each frame' would make it work but doesn't work. Also tested using a value instead of an attribute which also doesn't work. Any pointers greatly appreciated. Attribute_Val_Cd.hipnc
  9. Hi everyone! Im new in houdini, and i search a way to make the effect of a sphere touch example a planes and transfert is color… If i export it in alembic, the geo preserve this new attribute? Or they have a way for that? Thank you! :)!
  10. Hello everyone! I am new to houdini and I am currently working on PyroFX I'm trying to apply the color of my pyro to my geometry, from the informations contained in the Heat or the temperature. The information is in the voxels, so I can not transfer it to a shader or apply it to my geometry. I do not know if the sample volume would be a track for you. I'll give you a scene, if you could enlighten me on it. A big thank-you! color_attribute_tranfert.hip
  11. Hi, new poster here etc etc This should be a REAL easy problem to solve for you guys, unfortunately I'm very new to Houdini so basic stuff still escapes me, and I couldn't find any resources at all that match what I'm looking for. I'm trying to create an effect where everytime a human model steps on the ground (so when the feet make contact) the attributetransfer color forms a 'ripple' on the ground, as in it starts in a small filled circle, then gradually expands outwards with an increasing gap in the middle (similar to how a torus acts when its radius is scaled) - this is how I've actually achieved the effect, by using a torus object to transfer the color. However, I need this effect to be completely procedural, so it occurs each step without having to use a different shape each time. I'm sure there's a very easy method to this that I just haven't seen. Any advice would be greatly appreciated!
  12. Hi all, I've made a Color Sampler asset that samples colors from an image. Colors can be sampled with points on a line, on a grid, randomly scattered points or with input points. It's also possible to sample the most frequently occurring colors. The sampled colors are stored in a color ramp which can be randomized. You can download it from https://techie.se/?p=gallery&type=houdini_assets&item_nr=6.
  13. Hello, I'm trying to transfer point color from static object to an animated one. the color does transfer however the red marks seem as if they're moving not with the animated poles. the two objects are identical. houdini 16.0 . 2019-04-01 09-20-18.mp4
  14. Color drops (flip)

    Hey magicians, I need to create something like this for a client, some sort of flip drops that need to be timed with music. My first thoughts are create a flip tank with some particle system falling down that act like drops, and use the "hit" parameter to make them light on? (not sure about this part). Shading will be done with redshift. As for the timing with music, I think COPs is the way to go. Any tips on how to achieve this will be super helpful. Thanks in advance
  15. Hello everyone, Here is my problem, i'm new as houdni user and i followed the embroidery tutorial from entagma, once finished I have added some extras stuff but my problem is when I want to export, I want to export by color ( or group color ) but I don't know how to proceed. Can somebody help me ? Thank you everyone . link to the tuts : http://www.entagma.com/fakebroidery-needlework-in-houdini/
  16. Color by group

    Hello I have several some groups (grp_A, grpB, grp_C, grp_D), how do I separate each group with a different color? Thank you.
  17. COLORED NOISE GROW

    I am new to houdini and wanted to ask how Tim van Helsdingen grow this color from minute 9:50 ? The Youtube link :
  18. Hello! I can't wrap my head around this one. I applied some random colors on the primitives with the default @Cd attribute & set the roughness to 0.1 on the principled shader. The colors show up and everything seems to work fine. BUT, just as a test, I tried to bind a custom roughness attribute with the same exact roughness values (0.1 on all primitives, just like it's set on the shader) and when I plug it in, the colors don't come through... I get a black & white render instead. I am lost as to why the shader/renderer is behaving this way... logically the outcome should be identical & I have no idea why the colors disappear. custom_shader_attribute.hipnc
  19. I've generated a bunch of wires which I then applied a wiresim to. Now after this I want to change the colors of the primitives through a texture map. I'd like to do this after the simulation so I can change the texture without having to run the simulation again. Usually when applying hair material to hair you can add a texture map to the root color. This will then allow you to color in the hair based on anything. This doesnt seem to work with my generated wires though. changing the root and tip color does result in a gradient over the strand like image 1. But applying a map projects the entire image per strand. Is there any way to adjust the colors to what I want? Edit for slightly more informaion: So it would be nice to have the strands inherit the color of a texture somehow.
  20. Colored Smoke with CMYK

    Last week a guy asked in the brazilian houdini group, in facebook, how to simulate colored smoke. I believe there are lots of hip files with this kind of effect, but while thinking about it, it came to my mind the possibility of using CMYK instead of RGB, since cmyk is more suitable for mixing colored things other than light. I couldn´t spend more time testing it or improving the file, but it seems to work, so here´s the hip file. colored_smoke_V002.hip
  21. Hi guys. I am trying to utilize my point attribs in a volume. how can I: - set the volume color (shade the volume) using my point color? - when volume is created, get it to read already set density values on the points. (volume rasterize). attached is an example file. cheers colortovolume.hiplc
  22. Hi, I am trying to figure out a way to mix smokecolors in DOPs without the effect of the velocity "Maximum" setting. Its a bit hard to describe so just check out my file. I have two methods of mixing the colors. One is done in DOPs putting Cd in the velcity volume of a source volume and setting it to Maximum. Because it is set to Maximum (because of the lack of another better working mode), colors tend to blend in a (somewhat expected) weird way. so two voxels, one with color (1,1,0) and the other with (0,0,1) then blend together to something that is (1,1,1). And I'm pretty sure blue and yellow smoke do not mix to white smoke ;-) The other one is done using particles which inherit the emitters color and are advected by the smoke. In a postoperation I transfer the color of the particles back into the volume and because it extrapolates it gives a nice colormix that is more of a blend operation and looks correct but its way more processing intensive (especially with highres volumes and lots of particles). So my question is: can the result of the particle workflow be somehow achived in dops without using particles? PS: I did try to do the coloring in a shader and it worked (its not in the file), but I would still need to create particles and I guess there would be a pretty large hit in rendertime sampling those particles in the volume. Cheers, Ronny colored_smoke_v03.hip
  23. Hey magicians, I'm working on a flip river wich I need to have color attribute, followed H16 Flip Masterclass and get there, but then I tried to add color in several ways but I can't get it working. I tried adding a sop solver to dops with attribute transfer, but the color didnt worked on the motion. Also tried making source volume with points from volume with uv texture but velocity gets weird. Working river without CD Cd particles with weird velocity Any tips on how to fix this? attaching a hip. Thanks in advance flip_issue.hip
  24. Hello there!! I have this sphere, and I want its extrusions to have a gradient in its colors. The pick to be the more intense and the base to have the same color with the base of the sphere. How can i do that? Please help!! cheers!
  25. Hello there!! I want to select all the primitives that have a specific attribute - @P = 0 - and assign a specific color to them. How can I do this in VEX or with nodes? cheers!!
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