Material transition?

Forums Houdini Indie and Apprentice Material transition?

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ciliath: Member; 7 posts; Joined: April 2014; Offline

April 29, 2014 8:59 p.m.

I'm looking to create a transition of one material to another.
Much like seen here http://youtu.be/Jz-7Di2s4yY?t=56s [youtu.be]

I've been pondering about it, and can't really find a solution.
Is attribtransfer the solution?
Any help would be very appreciated

thanks~


circusmonkey: Member; 2624 posts; Joined: Aug. 2006; Offline

April 29, 2014 11:32 p.m.

Hi,
very cool video!. There's lots of things you could do, first off do post some small tests here so you can grow your ideas. You can easily do a on / off blend between point colours for starters. You could run a point down a curve and then do a attribute transfer to the points you have your objects copied to.

Getting more complex you could use a ramp driven by an attribute to switch between diffuse colours in a shader which could work on a per object basis. You would just need to create a few variables in Vops.

Rob

Gone fishing


circusmonkey: Member; 2624 posts; Joined: Aug. 2006; Offline

April 30, 2014 12:17 a.m.

In fact the idea seems so much fun Ive made a simple vop based system to drive the switching on point colours for you.

Rob

Attachments:
rse_randcolours.hip (157.1 KB)

Gone fishing


ciliath: Member; 7 posts; Joined: April 2014; Offline

April 30, 2014 3:12 p.m.

ey rob, thx for the help

imma work some more on this and ill come back (For more help) :p


circusmonkey: Member; 2624 posts; Joined: Aug. 2006; Offline

April 30, 2014 5:46 p.m.

Glad you find it useful. There's tonnes of cool things you could do with Houdini for those sorts of videos.

Rob

Attachments:
colourOn_v001.mov (1.1 MB)

Gone fishing


ciliath: Member; 7 posts; Joined: April 2014; Offline

May 2, 2014 8:43 p.m.

alright, i've done a small mod to the file u gave me

the random coloring is now affected by a control x)

Onwards to the next part, which i guess would be the way the color spreads itself slowly across the surface?
Any tips on how I can get started on that?

Attachments:
randcolours2.hip (187.6 KB)


Sadjad Rabiee: Member; 1391 posts; Joined: Dec. 2010; Offline

May 3, 2014 4:10 a.m.

If you wanna growth color over hole surface on each frame like the Video (on time 00:58) ,So you can use Point Clouds :idea:

Just check attached project :wink:

Attachments:
JK_Growth.hip (166.6 KB)

https://www.youtube.com/c/sadjadrabiee [www.youtube.com]
Rabiee.Sadjad@Gmail.Com


ciliath: Member; 7 posts; Joined: April 2014; Offline

May 3, 2014 7:13 a.m.

You guys are the epitome of awesomness :p
thanks a bunch joker, imma study your file vigorously.

(though I must also ask, how come some points don't get colored red?)


Sadjad Rabiee: Member; 1391 posts; Joined: Dec. 2010; Offline

May 3, 2014 8:28 a.m.

To make Red all of the points you should just increase “Search radius” in the
JK_Growth->dopnet1->sopsolver1->vopsop1 :wink:

https://www.youtube.com/c/sadjadrabiee [www.youtube.com]
Rabiee.Sadjad@Gmail.Com

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