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About Brazen

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    J-B G.
  1. Hello everyone, I have just published a new shot on my Vimeo channel! In this episode I tried to explore the creation of CG environments and new techniques such as matte painting and 3D projection. It is based on a course taught by Emilis Baltrusaitis available on Yiihuu.cc. Houdini was mainly used here for details assets and atmospheric. Feel free to subscribe to my Vimeo channel if you liked it! Any feedback will be greatly appreciated!
  2. Houdini Nebula RnD

    Hello everyone! I would like to show you my new Houdini Nebula video ☄✨ It is based on a FLIP sim driven by noises and then color-corrected in Nuke and AE. I originally wanted to approach Teun van der Zalm's nebulae looks and I'm quite happy with the result ! Feel free to give me your opinion, thanks for watching ! I also did this video some times ago, again a Houdini Nebula RnD video but another technique was used : the nebula was slice-rendered and colored exclusively in After Effects :
  3. redshift Error opening the tile device

    Thanks for your answer, but as explained above and as you can see on the video I have posted, when I'm disabling the "render to mplay" option and clicking on "Render on disk", this wouldn't work : Redshift crashes after a short while. It's exactly my issue and I don't know how to solve it. Yesterday, I tried to update Redshift to 2.6.54 (Houdini still 17.5.173) and this time, when disabling the "Bake render map" option, I can render out images on disk and to MPlay. However, when enabling the "Bake render map" option, I would have the exact same issue as before : Redshift crashes each time (when clicking on "Render on disk" and the "Render to Mplay" option still disabled)... So I'm still having the same issue
  4. redshift Error opening the tile device

    Hello guys, I'm using exactly the same versions (Houdini 17.5.173 and Redshift 2.6.41) and I'm facing the same issue. Disabling the Render to Mplay under the Output tab doesn't seems to fix the issue. Also, every time I click on "Render on disk", Redshift crashes after a short while. Here is a short video to show you my problem : https://drive.google.com/file/d/18-_iGEg8YkIcTIlVEG0iBMsYmqVYYr1U/view?usp=sharing I see that Redshift is crashing each time at "Mem for SS inputs" so I suspect memory issue but don't know much more as I'm on Win10 and can't manage to redirect the output of the Houdini console log to a cmd shell... Anyone have any advice to solve this issue ? Thanks a lot
  5. Boolean Shatter Node Giving Strange Artifacts

    I tried to convert my model to VDB then remeshed it and it worked ! Thanks
  6. Hello everyone For one of my scenes, I need to cut a 3D model of a human floating in space into several pieces. For that, I try to use the boolean node in shatter mode but I get strange results (see picture below : in the setup, I try to cut my 3D model with a bunch of deformed plane). However, the setup works on the PigHead test geometry. I tried to increase or decrease the number of points in my 3D model with a polyreduce and also to fix possible problems with a polydoctor but I still have strange artifacts and the 3D model does not cut well. I have attached the Houdini hip file below. Here is a link to download my 3D model : https://drive.google.com/drive/folders/1io36E7HHgM_PBOaQxmnjekwiH3Dpq_y9?usp=sharing Does anyone know how to solve this problem? Thanks by advance, Brazen Boolean_Shatter_Issue.hipnc
  7. Does anyone know ? If my problem is not clear, I can reformulate. Any advice would be greatly appreciated
  8. Hello everyone, I was following along a tutorial of Entagma to create a Juliabulb. Now I would like to be able to copy this Juliabulb into several instances, with the volume procedural shader applying on each instance. Currently my issue is that the procedural shader only apply to the master object, but not the the copied instances. I guess the answer is simple but I can't figure out a way to transfer the volume procedural shader to the copied instances. Can you help me to solve this issue ? Here are some screenshots of my simple setup and the hip file Thanks by advance for your help ! Juliabulb_copy_test2.hipnc
  9. Galaxy

    Just came across a website of a vfx artist, name's Teun van Der Zalm. He creates beautiful nebulae inside Houdini, check it out, it's very inspirational : https://vimeo.com/teunvanderzalm
  10. Big thanks to all, your solutions are quite impressive for the beginner that I am. I will analyse the file to understand exactly what you were saying guys. I have quite a lot to learn, and your insights are very appreciated. Yet another effect done by the masters of OdForce Thank you again !
  11. Still no answer. As someone suggested to me here at OdForce, maybe my problem is too vague, which is why I would like to expose my problem more clearly. The problem I am trying to solve is how to perform an animation of the different iteration of a recursive subdivisions of any geometric shape. For instance, I have attached a hip file of a platonic mesh subdivided with the technique found in the tutorial of Entagma. In the hip file, you can see that between frames 21 and 26, I have different iterations of the recursive subdivisions. So my question is : how to perform a smooth animation between those different shapes, like in the first video I have post in the previous message ? I tried to document myself on the different blend shapes nodes available in Houdini but it seems that the two shapes we want to blend must have the same topology that is to say the same number of points and faces... But I can't figure how to use these nodes as two different shapes corresponding of two iterations of the recursive subdivisions algorithm have not the same topology (because triangles are created). In this thread : http://forums.odforce.net/topic/28161-triangle-polygon-morph-animation-to-fractal/?tab=comments#comment-160368, the user Bergermon posted a file which seems to give an example of such blending, but I don't manage to merge the two technique to create the animation. Can someone help please ? Thank you by advance. EDIT : I have just found this tutorial which shows a technique to morph any shape into another : https://www.youtube.com/watch?v=-ycX38_DV7E. I have just tried to do it between two shapes of two iterations of the algorithm => my computer have crashed... Well I have just a laptop, not the kind of stuff to make VFX... I will start again later. Subdiv_Test.hipnc
  12. Hello everybody, I’m relatively new to Houdini, and as part of a personal project (a short film), I’m currently trying to reproduce an effect based on the recursive subdivision of a surface. We can observe the said effect for instance on this video made by Simon Holmedal : https://www.instagram.com/p/BK8ivNajNdu/ The different iteration (non animated) of the algorithm can be also observed on this video : https://www.youtube.com/watch?v=HHKPdf67Sfo Or on this one : https://www.youtube.com/watch?v=K1mlO2YSfU4 It is also the same effect used in the official SideFx Ident (Simon Holmedal again): https://vimeo.com/164501803 I searched every topic on OdForce which seemed to deal with this technique, I found several topic like : • http://forums.odforce.net/topic/28803-this-subdivided-thing/ • http://forums.odforce.net/topic/28161-triangle-polygon-morph-animation-to-fractal/?tab=comments#comment-160368 • http://forums.odforce.net/topic/26779-how-to-creat-subdivision-pattern/?tab=comments#comment-154625 And also the famous tutorial by Entagma regarding subdivisions : • http://www.entagma.com/loops-subdivisions/ Those topics seem to give several techniques to subdivide a surface into smaller triangle, but none of them propose a solution to actually animate the subdivided mesh. It seems that the overall technique is based on a recursive subdivision, coupled with the fact that the subdivided parts move along their normal, in order to give this effect of extrusion and fractal. I’ve also searched more deeply into the code of such an algorithm, and I’ve found several websites (with code) explaining this effect: • http://code.algorithmicdesign.net/Recursive-Subdivision-Mesh • http://atlv.org/education/ghpython/#7 • http://www.geneatcg.com/2014/11/21/rhino-python-tessellation-subdivision-first-version/ • http://www.geneatcg.com/2014/11/28/rhino-python-mesh-boy-surface-subdivision-analysis/ There are also other websites (less significant) dealing with this issue: • https://codequotidien.wordpress.com/2011/07/18/half-edge-mesh/ • http://www.wblut.com/he_mesh/ • https://codepen.io/anon/pen/YEyYZv • https://wewanttolearn.wordpress.com/tag/mesh-recursive-subdivision/ That’s all I found regarding this effect. Does anyone know how to make this kind of animation? If so, could anyone post a Houdini file which implements this technique so I could learn from that ? Thanks by advance, I hope someone here will know how to resolve this issue !