Adnan Hussain

madguru

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Recent Forum Posts

Vellum Cloth Questions coming from nCloth Maya April 11, 2019, 9:47 p.m.

Thanks so much for this Rhartmann! I created a setup with the wrangles as you suggested and managed to add a blendShape node so that the motion can be partially decreased, as all as all or nothing. I have tested the pinning to create the equivalent of input attract and will continue testing that further, but you gave me an important piece of the puzzle. Thanks!

Adnan

Vellum Cloth Questions coming from nCloth Maya April 4, 2019, 3:25 p.m.

Hi,

I'm creating a cloth setup using Vellum in Houdini 17 and had a few questions on how to recreate some of the things I would do in a Maya cloth setup.

1. Relative Motion.
In Maya I can constrain the nucleus solver node between a null constrained to a fast moving character and a non moving null at the origin. By weighting the constraint between the two nulls, I can remove or reduce the affect of extreme motion on a cloth simulation. How can I do this with Vellum?

2. Input Attract.
I have my simulation geometry point deformed to animated geometry pre vellum solver node. In Maya, I can use input attract to goal portions or percentages of the simulation to follow the animation shape during the simulation. How can I do this in Vellum?

3. Constrain points to animated object on moving character.
In Maya, I can create transform constraints on vertices of cloth and then parent that under a null which can be animated to help position parts of cloth. This setup can travel with the character by constraining it to an additional locator traveling with a character. In Houdini, I can create groups and use Attach to Geometry constraints to constrain those grouped points with the corresponding geometry. This works to constrain points to animatable nulls. Now I need it to travel with the character. I think I need some kind of expression to keep the nulls that the cloth points are constrained translating and orienting to a vertex on the character with a position offset.

Thanks,

Adnan

Vellum with Lsystems March 6, 2019, 12:20 p.m.

Hi,

I'm trying to use vellum with an lsystem. So far so good, I have the branches welded together, then the base of the lsystem is pinned. It sims, but collapses on itself. What should I add to keep it from collapsing on itself? I want it to maintain its shape as a tree, but be able to add wind to it. Ideally if I could have the wind affect the branches and leaves, but maintain the tree form without collapsing.

See attached node screenshot.

Thanks,

Adnan