Obi Official Forum

Hi

does the obi stitcher work with 2 soft bodies?
if it does is there any documentation how to use it?

i tried it on the barrel example scene like this,

moved 2 barrels close to each other.
added the stitcher to the solver and the barrels to the first/second actor.
press edit and added stitches, i could see green dotted lines for the stitches.
pressed edit to get out of edit mode.
press play and fired at the barrels, they are not constrained together.

anything i did wrong or does it not work?

thanks

Stitch constraints are globally disabled in that particular scene's solver component, because they're not used. Make sure to enable them, or they will be ignored during simulation. See:
http://obi.virtualmethodstudio.com/tutor...olver.html

thank you
it still doesnt work, is this the best way to constrain 2 soft bodies?

(09-09-2020, 02:34 AM)tegleg Wrote: [ -> ]thank you
it still doesnt work, is this the best way to constrain 2 soft bodies?

Hi there,

Just tried it and does work for me, this is the best (and currently only) way to constrain 2 softbodies.

What Obi version are you using?

im using the latest version, fresh download and project the other day.
i must be missing a step somewhere.

please could you produce a document or a video showing how to do it?

thank you

(09-09-2020, 12:44 PM)tegleg Wrote: [ -> ]im using the latest version, fresh download and project the other day.
i must be missing a step somewhere.

please could you produce a document or a video showing how to do it?

thank you

Hi,

My bad, I was testing using the development version (5.6). There is a small bug in 5.5 that prevents stitch constraints from working the first time they're enabled. The fix is easy:

Open ObiStitcher.cs, then take line 186:

Code:
inSolver = true;

And move it to line 177, at the start of the method. Should look like this:

Code:
if (!inSolver)

            {

                inSolver = true; // <------

                // create a constraint batch (CreateStitchConstraints() in burst returns a singleton):

                m_BatchImpl = solver.implementation.CreateStitchConstraints().CreateConstraintsBatch();

                // push current data to solver:

                PushDataToSolver();

                // enable/disable the batch:

                m_BatchImpl.enabled = isActiveAndEnabled;

            }

The stitcher should work fine now.

yes that works

thank you

tegleg

josemendez

tegleg

josemendez

tegleg

josemendez

tegleg