Jump to content

All Activity

This stream auto-updates     

  1. Past hour
  2. In/Active Constraints

    I'm trying to shoot a cannonball through a small castle. The cannonball animates and blasts through the walls, but the constraints look like they're being ignored (or they aren't hooked up properly), so the entire structure collapses the moment the sim begins. The clusters are being ignored as well, but I can't figure out why. Many thanks for you even reading this. v17.5 rookDestruction_chazS.hipnc
  3. Today
  4. Hi Guys, The scene is suppose to a transition bettween clear sky to cloudy wheater. I made an single cloud look using sphere feeding an cloud SOP then i animated the density field inside the sky SOP, after i convert the sky SOP to an polygon VDB. However when i try to use the polygon VDB to feed the cloud SOP, it wont work. (i figured out that was something when convert sky SOP to polygons, but not sure at all) my second attempt was export an sequence vdb, with no luck again. Any light on the tunnel???? anim_cloud_v00.hip
  5. Exploding Fruit!

    Hello, there good people, I really need help with this subject and I don't know what am I doing wrong to not get my replies on my posts If anyone knows why please help. Anyways I wanted to get a fruit to explode and be squishy, So Fracture RBD isn't really an option. And when I try FEM you can't really create a shell object as it fills the whole object with tets. Plus FEM is so slow and unstable -Don't know if I am doing something wrong-. Also, a sidenote how do I add custom exploding force to FEM Sims. Thank you so much in advance and I really hope someone helps me out as this is driving me crazy.
  6. Hair inherit groups from skin

    Well, nevermind i found out that the issue comes from the fact that the drop-down menu doesn't show the groups, you need to enter them manually.
  7. Yesterday
  8. Hair inherit groups from skin

    Bumping this since i am facing the same issue now.
  9. RBD Collision Problem

    Hi everyone! I came across this "Emit packed prims into RBD sim" setup, but when i connect the sim to a collision object which is RBD Packed static object in this case, the emitted objects gets stuck to eachother any doesn't move properly. Any idea how can i fix this issue? I also attached the file, Thanks for checking Emit_packed_rbd_CollisionProblem.hipnc
  10. egg explosion

    If you post an example .hip file of what you have already attempted to do this, members of the forum will likely help.
  11. Add color to existing color based on attribute?

    lots of ways, but you can use for example Mix VOP in vops or lerp() function in VEX to mix colors by attribute (see example with both) vector color = chv("color"); v@Cd = lerp(v@Cd, color, f@eye); AddColorToExistingColor_fix.hipnc
  12. "Mud worms".Heightfields+SOP solver

    This is awesome dude! Thanks for sharing!!!!
  13. Permission Denied?

    I had this tonight also and felt silly. click on the button that says 'Main' in my screenshot. (probably says something dif on yours) and change it to Main Takes are great, just getting used to using them. MattB
  14. Vellum export alembic

    Hello, thanks for the reply!, I finally found that the Split Node worked perfectly!
  15. egg explosion

    There is not much lessons for it, but popfluids should be perfect for this.
  16. Vellum export alembic

    To export separate meshes as alembic you want to check "build heirarchy from attribute" on the alembic rop. It will separate each packed primitive into separate objects based on the path attribute.
  17. In fact, I have yet to find a operator definition type that has the 'New Output' option unlocked??
  18. Nature fun

  19. Pyro renders taking way too long

    Jesus, please don't use deep shadow maps, unless you want to go retro 2001 style. Can we see a frame? Can you upload a single bgeo + your scene to have a look at? Volume limit of 1 means 1 bounce of indirect, which is already pretty expensive as Mantra kinda sucks in that regard (but guess what, almost all of them suck at volume bouncing, hello Arnold!), your volume light is doing a point cloud bake to simulate emissive illumination. So you don't want to be using it as well as doing a volume bounce too. I would steer clear of using volume limit (volume bouncing) completely in Mantra, it is just too slow to be usable unless the shot really calls for it. Use PBR mode, your env hdr, and a volume light.
  20. Hi! I create these mountains on my shape with a noise by getting that noise by affecting the @P.y attribute. Of course the mountains are thinner when my shape goes more steep, because the points distributed through the Z axis are more dense there. To resolve this I thought I should use a different Pos for the noise, so I created a grid and put it in the second input. But when I use getattrib(P) on that input and plug it into the noise, I don't get the expected results. (It seems to do nothing much) Is it that you can't use differents Noise pos' like this? Does the topology have to match with the geometry or something? How does this work, exactly? How would one go about evenly distributing the noise position along the Z-Axis? So that you have just as thick mountains everywhere, no matter how steep? Hope you can help me. Thanks.
  21. Nature fun

  22. Vellum export alembic

    Anyone? I'm pretty sure I'm super easy for you guys, and it will help to understand some very basic moves, thanks
  23. As the title says, when I create a new Material VOP asset the 'New Output' option in the Type Properties is greyed out. If I define export variables inside my surface shader code the 'Shader Call Export Variables' VOP will not bind them. Assigning values to eg. Cf directly in the VEX Surface code does nothing. How could I output eg. a vector from a Material VOP Asset?
  24. Last week
  25. egg explosion

    Hey guys, I was having a little trouble with my fluid explosion. I want it to be very similar to this but I'm having a few problems. Tell me please, where i can find lessons on this. Egg explosion.mp4
  26. Nature fun

  27. Animate it by hand. there are three basic types of expression based animation between two frame values, mix and match as you like: //linear: float tx = fit($FF,1,10,2,21); //exponential: float tx = fit01(pow(fit($FF,1,10,0,1),3),2,21); //smooth: tx = fit01(lerp(1,10,$FF),2,21);
  28. Vex anoise

  29. Nature fun

  1. Load more activity
×