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About kiryha

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  • Birthday 05/06/1977

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    Kiryha Krysko
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    Houdini, Photography, Cookery

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  1. Vector maths basics

    Relying on the math for VFX course, only position vectors start at the origin. So I would not say always
  2. Full time Houdini programm

    Its a pity there is nothing like this in the US!
  3. Hello, Is there any college or university in the US which has a full-time one-year program in the 3D field focused on Houdini? By any chance something relevant in Chicago?
  4. I just turn this off and it helps. Now I know what is the functionality of this node, thanks!
  5. Placing objects on a surface

    The orientation of copied objects defined by several built-in attributes Here is the example of how you can control those attributes to control copied objects position, rotation and scale. Offtopic: Hellow from ex AnnArbor citizen
  6. DOP Wire solver - differents width

    Scale Poly Wire with VEX
  7. Vector maths basics

    To define a vector you need to define how far it travels in X and Y direction. For vector B, roughly from your picture, it would be 1 in X and 5 in Y (B = [1, 5]). Vector A would be 3 in X and 2 in Y (A = [3, 2]). And it's just two vectors which don't have any relation between them (its just two pairs of numbers). If you need to add this vectors you will add X and Y values, so A + B = [1+3, 5+2] = [4, 7] (blue line) Moving vector A to a position of a green vector (called A+B which is wrong, cos its the same vector A, not A+B) just helps to illustrate the math we done: the blue line is a result of adding A and B
  8. Vector maths basics

    Vector is just a direction and length and it does not matter where the vector is located in Cartesian space (there is a special type of vector called "position vectors" which lock to space and always starts at the origin, though). So, vector B is the same vector as green A+B. Placing B on the tip of A helps to visualize that A + B = blue line.
  9. Right, that Thomas setup is amazing, pure VEX, super fast!
  10. One more solution from Thomas Para:
  11. Animation Workflow

    I had a similar question recently, so maybe this link might be helpful as well: There are some more useful links including raw Python tools
  12. At some point (probably after Material Stylesheets creation) my TRAFFIC object stops to render. If I would delete Material Stylesheets on ENVIRONMENT node and turn off CROWDS it starts to render again. Also, to get crowd motion blur I need to unpack crowd sim, but that breaks material assignment with stylesheets for my agents. Copying Material Stylesheets data (and a fixing path to material nodes) to unpack node did not work. I have no idea why it happened, what relationship between CROWDS and TRAFFIC so they don't render together and would be glad for any suggestions! Here is the scene file: E010_S040_003.hipnc
  13. Here is the scene E010_S040_003.hipnc Also, I can't understand why my TRAFFIC part does not render (if I delete stylesheets it renders again), but I will make a separate thread for that issue. dancing_01.fbx
  14. Yes, that's it, but after Unpack node my material stylesheets stop working!
  15. I have it turned ON, no MB thought... I have a trail node after my crowds sim set to calculate MB, it works for other animated geo but not for the crowds (I use animated FBXs as agents) but velocity is still = 0.