hayden martin

Hey all I have question regarding a pretty simple DOPs setup that I just can't seem to get my head around... Basically I'm simulating soil and turf being torn up. I'm using Grains for the soil and Cloth for the turf. I'm happy with both material properties now. The issue i'm facing is bonding the two different objects... I know it should be easy but whatever I do, it seems as though the objects remain pinned to their start frame once constrained to one another in a DOP Net, resulting in odd "hanging" behaviour, where only the grains fall and leave the turf behind or vice/versa What I'm aiming for is two-way coupling of the turf (cloth) and soil (grains) sims I've attached a couple of images to demo my setup - as you can see, there's vellum constraints node set to “Attach to Geometry” the constraints node is referencing the Geometry SOP group “Grass” and Target SOP “Soil_Geo” + SOP Group “Soil” When looking at the constraints, after a while of playback, they appear pinned to an static “start frame”, rather than continuously updating geometry I know i'm super close to cracking it his but I just don’t know what small thing it is that I’m overlooking

Hey all I have some low-ish resolution VDB dust clouds created in C4D with the TurbulenceFD plugin. These contain velocity channels. So far, I'm just not satisfied with the overall detail. What I've done to try and increase detail is convert the VDBs to Volumes, Volume Resample them, then use Volume Velocity to add some curl noise. It's looks OK, but by no means what you would call a true Up-res, that uses existing velocity channels to increase detail in turbulent areas... So that's the question really. How do I take a pre-calculated VDB (not dynamic at all) and give it a high-res makeover? Any pointers would be appreciated. Please be aware that the overall motion has been signed off, so all that I should be changing at this point is detail. I would just do the Up-res in TurbulenceFD, but it's buggy as hell and wont work. Every day I get closer to ditching C4D entirely. Thanks!