Something like SpeedLimit POP but in DOP???

[CeeGee]

This question is maybe stupid, but is there something similar like SpeedLimitPOP but for DOP simulation???

I have fracture wall and what to make explosion, but some chunks flay very far and fast, i what to slow them down.

Thanks

[old school]

You can use a Drag DOP on your DOP object and check on Ignore Mass and then add drag. You can make the object look like it is falling in water by adding noise.

If you want to have a hard limit on the velocity itself, you can use a Modify Data DOP or a Motion DOP. Both can affect velocity. Just set the velocity to always and put in $velx $vely and $velz in to the three velocity fields to get no effect whatsoever. If you want to add some hard drag to the velocity, you can multply the three by 0.5: $velx*0.5 $vely*0.5 and $velz*0.5.

To add a simple condition where you don't want the object to fall faster than say 2 units per second in Y,

if($vely > -2, $vely, -2)

[CeeGee]

Thanks old school i will try your tips and trick...

I will post a scene when i get something...

[eetu]

if($vely > -2, $vely, -2)

(I guess that should be "<" ?)

eetu.

[ranxerox]

how about "min($vely, -2)".

-ranxx

(I guess that should be "<" ?)

eetu.

[meeotch]

Nope - that would prevent pieces from falling slower than -2. You want max(-2, $vely).

Or to correctly limit speed in all directions: x = normalize(vector3($velx, $vely, $velz))[0] * min(2, length($velx, $vely, $velz)), and similar for y and z.

Boom! Nailed you on a four year-old thread, greg! ;-P Kidding - I actually just had to do this today, and this thread came up in search.

Is there a way of making dops calculate the normalized vel and/or speed (length) by itself? Seems stupid to have to type in all that stuff, build a vec3 from components, etc.