RealFlow Official Forum

i'm trying to use the mesh extension to create a much more vast ocean than i sim'd out. I fiddled around, and got it to look pretty decent in the viewport using some guessing as far as falloff parameters go. However when i bring it into maya, i see the separation line between the domain contained area and the extended area. Isn't the point supposed to be for this NOT to happen? I tried with a vast array of falloff settings and some other settings. Really didn't get much difference as far as this went. Am i missing something? Please help. Thanks!

I keep having a simulation stop at 12 frames. it's supposed to be a 90 frame sim. I can't seem to figure out whats going on. This is what i'm getting in Terminal
>18:36:51: ================ Frame 11 started ================

>18:37:10: Sea Level found at -1.942265. It would be convinient to set this parameter to a constant value for the whole simulation
Summary information
-------------------
HY_Mesh02: [457,726 vertices - 912,166 faces]
HY_Closed_Domain_Container: [8 vertices - 12 faces] [] [vx:0]
HY_Closed_Domain_Manipulator: [0 vertices - 0 faces] [] [vx:0]
HY_Closed_Domain_Water: [8 vertices - 12 faces] [] [vx:0]
pCube1: [386 vertices - 768 faces] [/Users/markmoritz/Desktop/rock.sd] [vx:0]
HY_Closed_Domain_Domain: [271x54x186 2,721,924 cells] [10,748,637 particles] [0.120000 cell size]
HY_Splash01: Dumb [190,407 particles]
HY_Bubbles01: Dumb [724,921 particles]
HY_Waterline02: Dumb [203,320 particles]
CameraFromSD01
Gravity01
k_Volume01
Ocean_Force01

Timing information
-------------------
Elapsed time: 00:04:12
Remaining time (estimated): 00:27:18
Average time (frame): 00:00:21

>18:37:14: ================ Frame finished ================

>18:37:14: ================ Frame 12 started ================
/var/folders/00/0j09cx_x3jqbn8tl7z7077kh0000gn/T/bubbletest.W31478.command: line 1: 32163 Segmentation fault: 11 "/Applications/RealFlow 2014/RealFlow.app/Contents/MacOS/RealFlow" -nogui -range 0 90 -threads 24 "/Volumes/LaCie/Projects/Realflow_Projects/bubbletest/bubbletest.flw"
logout

[Process completed]

Hey,

do you have the scene to try here?. Only the info for that frame will be enough.

luisM.

Hello,

Here are some advises to use extensions

- In Maya the ProjectionPlane node used to define how the mesh is going to be clipped ( in RealFlow is the hybrido domain gizmo ) shouldn't be too close to the object that contains the fluid. See the image attached

- The fluid should be almost still in the boundaries to get continuity with the extensions

- Turn off core smoothing filter to make the transition cleaner if needed

yeah i think my problem is that there is too much activity on the edges of my simulated area. it's causing too many artifacts. They are not even splashes that i need, they're just the fluid hitting the edge of the original closed domain.

so i'm really confused and struggling on this. i love the idea of the mesh extension but can't seem to get it working for me. maybe my ideas are wrong or i'm going about it wrong, but what i've been playing with is.

a hybrido domain
adding an ocean force daemon for overall wave movement
in some cases, having a solid object in there to break things up (i.e. a rock, sphere, whatever)
then meshing
add extension, etc.
fiddle with falloff parameters

the biggest problem i'm running into is in the domain, the waves crash along the edge. Thus, when i extend the mesh, it just has a straight dropoff from the wave edge straight down, and then goes into the somewhat flattened out extension areas. Not sure, how do i cure this? Is there a way to set up my domain that the waves WON'T crash along the edges of the container box? Or is there a way to have the waves at the edge smooth off into the extended areas?

Desperately trying to get this working so any help would be greatly appreciated. I watched Luis' video tutorials online and they helped a lot but not so much in this area. There's not a specific scene, it's just a bunch of different ones that i'm playing with to get this generally working.

OR, is there something I should be doing to have the Ocean Force daemon that is affecting the grid fluid ALSO carry over the waves and displacement into the extended mesh areas? Going for some nice wide open shots of vast oceans so i'm trying to avoid simulating out some ridiculous large domains for just a small area of focus really

this is the mess i'm getting

Hello,

Could you send me a top projection of the hybrido gizmo and the object that contains the fluid, please?

Thank you

Hello,

Maybe this video ( ocean force daemon + extensions ) can help you. It is not to configure the domain, but the extensions.
https://dl.dropboxusercontent.com/u/971 ... asic02.m4v

Regards

tried to attach a zipped scene file here. Again, i don't think the problem is not understanding the extension settings so much as it is with preparing the domain properly to start with. But i'm not sure how to best go about it. I know in maya fluids, you can set the boundaries of a container to 'open' on a given direction and that will allow the fluid to simulate as if there is no walls for it to hit against, even though the walls are visibly there. So that way, there will be no visible 'end' to the fluid. In other words, the way i'm setting it up now, once my fluid hits the end of the container, it splashes back up and crashes against the wall. And those seem to be the areas where i'm struggling to make the extensions blend. So is there a good way to avoid that from happening to begin with? i feel like i must be missing something because i can't believe maya fluids can do anything that realflow can't at this point.

still trying but having no luck with the edges of the domain fluid. thinkin i must be missing a step or something. Don't think it's extension related, i think it's how my domain is initially set up. Please help!