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Ilia

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About Ilia

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    Peon

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  • Name
    Ilia
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    Brooklyn
  1. Yes, I do use sweep SOP. I just want to use the algorithm to get a smooth orientation.
  2. Hi, guys, I'm making a procedural modeling of a roller coaster. It looks very common, but I'm stuck in a problem. After I create a curve, I want to use the parallel transport method to get a smooth orientation, but I find that I do get smooth normal, tangent and bitangent, but I can't smooth them where the ends of the curve are connected. I mean, if I rotate and translate to the last point based on the normal of the first point, I will not get a smooth orientation where the last point meets the first point (I find that almost all the situations discussed in the tutorial are based on an unclosed curve, and I want to make a closed curve here, I wonder if there is a solution.) As shown in the figurerollerCoaster01.hip below, there is a smooth orientation in other parts of the curve, except where the curve is connected end to end.
  3. Sorry to bother everyone, I know this is a very basic question, but it stuck me for a long time, so that every time it would give me trouble in mind. That is a clear explanation of the two environment variables of $HIP and $JOB. I've read a lot of tutorials and explanations. I basically know that $HIP represents the parent path of my current scene file, and $JOB represents the parent path of my current project folder. Is that right? But in my houdini practice, this is confusing. When I create a new project, I can clearly see what my $JOB means. But that doesn't explain where the $HIP points to. When I create a 'file cache node', it is obvious that $HIP, which is my project folder, is displayed on the upper level of the geo folder. Isn't that a same path with my $JOB? I have attached my screenshot below, which shows my directory structure. I use the default folder structure generated when Houdini creates a new project. I made a little change, but it should be the same basically. I hope someone could give me some advice. Thanks!
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