Speeding up hinge

[JoeWright2]

Long time no post (had to create a new account...)

How can I speed up the movement of CustomHingeActuator? Beyond 0.3 rad/s on my model it starts to significantly fall behind. I've tried commenting out the bit with NewtonUserJointSetRowAcceleration in it but that didn't help much.

Thanks, Joe

PS - I got a quadruped to walk through evolution. Now on to bipeds

[Julio Jerez]

are you using 3.14?

[JoeWright2]

Hi yes. Slight error, make that 0.6 rad/s

[Julio Jerez]

Ah, can you try the Skelton joint wrapper, check out the StandardJoints demo,
try that see if it is better.
first sync, I just fixe a problem with that solver.

[JoeWright2]

Hi, I added this:

Code: Select all

   NewtonSkeletonContainer* const skeleton = NewtonSkeletonContainerCreate(mWorld, main_body, NULL);
   NewtonSkeletonContainerAttachBone(skeleton, leg0_upper, main_body);
   NewtonSkeletonContainerAttachBone(skeleton, leg0_lower, leg0_upper);
   NewtonSkeletonContainerAttachBone(skeleton, leg1_upper, main_body);
   NewtonSkeletonContainerAttachBone(skeleton, leg1_lower, leg1_upper);
   NewtonSkeletonContainerFinalize(skeleton);

but it crashed at

Code: Select all

            dgInt32 index = ((row->m_lowerBoundFrictionCoefficent < dgFloat32(-1.0e10f)) && (row->m_upperBoundFrictionCoefficent > dgFloat32(1.0e10f))) ? 0 : 1;


with row holding some unreadable members.

Joe

[Julio Jerez]

yes I forget to check the bug fixed, I will do it tonight.

[JoeWright2]

Cool, thanks

[Julio Jerez]

I found the solution by it was too late to committed, I will do it tonight.

[JoeWright2]

Thanks, is it in the latest commit?

[Julio Jerez]

I committed but there is still a bug. I am fix it but the bug turn out to be big one.
It will take more than a day to get it going.
Mean time get the code because what is check in is much better, see if it works for you.

the bug affect complex set of joints.

[JoeWright2]

Hi, downloaded and used update. Hinges now can go nice and fast, thanks!

Haven't tried the skeleton stuff again, everything seems to be working fine without it. I will probably try out the skeleton code later.

Joe