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KevinMack
05-21-2012, 10:51 AM
Can any one offer a few tips on how to get started on making an effect similar to what is happening to the cloth on the right in this video?

https://www.youtube.com/watch?v=p868bTR1Mms

I basically need to make a drop of soak into a piece of cloth.

Any help is much appreciated.

OnlineRender
05-21-2012, 11:23 AM
you could just make an animated texture map ?not very technical but it might do the trick

JoePoe
05-21-2012, 11:39 AM
Animated texture in combo with plugin Truemelt (free) for the geometry of the droplet.

plugin page (http://www.trueart.pl/?URIType=Directory&URI=Products/Plug-Ins/TrueMelt)
Youtube vid (http://www.youtube.com/watch?v=dE3CgaevbzM)

There's another one PG_Melt_Fe
PC only so I don't have any experience with it, but it looks good.
PG_Melt_Fe (http://www.lwplugindb.com/Plugin.aspx?id=03e03c2d)

KevinMack
05-21-2012, 11:58 AM
Animated texture in combo with plugin Truemelt (free) for the geometry of the droplet.

plugin page (http://www.trueart.pl/?URIType=Directory&URI=Products/Plug-Ins/TrueMelt)
Youtube vid (http://www.youtube.com/watch?v=dE3CgaevbzM)

WOOO thanks

SplineGod
05-21-2012, 09:01 PM
I would use a HV attached to a null for the dropet. Its size and shape can be animated to appear to disappear into the cloth. The stain can easily be done by creating a texture map consisting of a black spot on a white background. Apply it to the cloth in the diffuse channel to darken it. Use a reference null to place and size the texture as needed.

Dodgy
05-22-2012, 01:33 AM
Why not use particlepaint from Dpont's Renderman nodes?

http://dpont.pagesperso-orange.fr/plugins/Textures.htm

Go to the particle paint link and there's a gif which shows the exact effect you want.

SplineGod
05-22-2012, 05:00 AM
Thanks Dodgy! I totally forgot about particle paint...excellent plugin :)

djwaterman
05-23-2012, 06:23 AM
Animated texture map, I did it for a TVC once with a teapot breaking apart and all it's contents splashing out onto the table cloth, Realflow generated what they call a wet map and I took that into After Affects and did some work on it to make the edge grow out and fade so that it would look like the tea soaking and expanding into the cloth. Looked really effective. There's just that initial moment when the liquid makes contact and has a hard edge, and then the edges soften, expand, and fade as they expand outwards.
So like most are saying, an animated texture (grey-scale), it can just sit microns above the cloth layer and use a transparency map to leave just the liquid showing.

KevinMack
05-23-2012, 10:05 PM
Thanks for all the help guys, much appreciated.