On 10.01.11, In motion graphics, RnD
I ran a test using the melt script i posted up at ispeakinpictures.com a while back with Realflow’s elastics as a base. Instead of just posting an RF simulation video i thought i’d throw a little edit together.
Simulation – Realflow
Render – Cinema 4d + Vray
Post – After Effects
Edit – Premiere pro
Hoping to get my act together and get some new RF / Vray tutorials done over the next few weeks. Still learning Vray for a bit though before posting anything particularly useful for you!
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8 Responses
This is fantastic, and RF and Vray tutorials would be boss!
Hey Kieran,
nice work. I tried your general melt script, but I don’t really know how it works. Did you describe this script somewhere? For what is the Null Object good for? Cause you are using the Y value of it in the script. Thx in advance.
Hey Chris, no probs, next on my list is to put together scene files of the two melts and a quick walkthrough. Hopefully that should help out
ok thx kieran, can’t wait for it.
Hey Kieran, I think I got it after reading the Instructions of the Melt Plugin from IoSim. So the Null kind of used like the Ambient Scale Object, right? But could it be that the threshold is very sensitive?
When I put it on 12 some outer particles melt, but after a while it stopped and the inner core was still there. but when I put it on 15 the outer particles kind of exploded and some others melted slowly. So did you animate the Null in your general melt scene?
Hey mate, yeah the Null is a control of sorts. Although since this is a very rough and ready script, not a commercial, polished thing, it’s a bit tricky. The null value varies heavily with some of the fluid parameters, particularly the resolution. Since what the null is doing, is setting a threshold of how many neighbour particles are near it within a given radius. This radius can also be changed in the actual script code, but the null basically says ‘whatever value i’m at, if there are less particles than that around you, i’m going to melt you. If the number of particles around you is more than my value, i’ll leave you be.’ That’s how we get the effect of melting from the outside through to the core of the object, since there are less surrounding particles on the outside.
The Null can be very sensitive at high resolution like i said though, so be warned!
Hope any of that makes sense.
cheers
Kieran
Hi, very nice effect, congratulations!!
Plz, I know you did it for script, but how to make the object is exactly the same shape as the geometry? When I do that the object loses the details and get a aparecenci mass or something like that, and if I try to increase the resolution to realflow crashes.
Can you help me? thanks!
Hey there, thanks! I think this is a problem with how realflow distributes the particles within the geometry. There are plugins, (i think wetwork has one) that distributes a layer of particles evenly across the surface of the geometry so that the mesh fits perfectly to the geometry. There are a couple of things you can try without getting that plugin though. As well as increasing the resolution in Realflow, try exporting a higher polygon model of your geometry from your 3D program. Also within the emitter settings, there should be a V Random and H random settings that will randomise the position of the particles a little.
cheers
K