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hcmstory
05-02-2009, 07:13 AM
First, I made a basic sphere mesh and applied it to the ncloth.(gravity and wind value is "zero")

Second, All of the vertex of the sphere constrained to a basic animated locator

Third, I made a radial field and it collide with ncloth sphere in some frames but ncloth sphere

doesn't have any changed because all vertex is constrained to a locator...

I uploaded a jpg question image it says what I want to do...how can I solve it?
Duncan
05-04-2009, 05:12 PM
If I understand you correctly, lower the glue strength on the the (transform) constraint to the locator. Where the force is strong enough the bond to the locator will be broken.


Duncan
HowardM
05-13-2009, 07:25 PM
looks to me like he wants the ball to shred when it hits the radial field.

use a Tearable Constraint and animate the glue strength ;)

speaking of, ive had trouble getting glue strength vertex maps to work in 2009, Duncan is this a bug or am I doing something wrong?

cheers!
Duncan
05-13-2009, 07:36 PM
Something that can be confusing when using tearable constraints is that the constraint adds construction nodes to break up the mesh before it reaches the cloth node then does merge vertex downstream of the cloth. In this way the solver does not need to deal directly with topology changes. The output mesh will then have the same topology as the input mesh only when it is fully torn apart. The constraint however works on the input mesh topology, thus you need to display the input mesh and set vertex attributes on that rather than the output mesh.

For normal non-tearable setups it is OK to paint on the output(or simulating) mesh because the topology and vertice index values are the same as the input mesh.

Duncan
HowardM
05-13-2009, 07:55 PM
aaaahhhaaaaaa ;)

cheers Duncan! :D
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05-13-2009, 07:55 PM
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