Art Directed RBD Simulation

Particles doesnt have active or art animated activate data this way we should create active or sleep data out of the DOP Network and bring it to the inside with Pop Wrangle or different methods so i am gonna show very easy method to use art animated rbd simulation with active data animation. I have used this method on our Garnier Tv Commercial for rock fracture shot , check that commercial out.

There is a simple and fast geometry setup for rbd setup.  Lets go with this simple shot first...

Picture below , i made RBD Sim for our Garnier project. If we use RBD Sim , there is active data in it and we can use that data with only couple clicks in the DOP Network. But to use particle with active data and multi-solver is different. I will show how to use that method on this blog.

For this shot i have created a sphere and scatter it for geomerty. On attribcreate sop i am c

alculating miny with $MINY and maxy with $MAXY for giving a color to my object. After that using VOP SOP for color grading. (that is not neccesasrly needed) just red color is enough to give active data to points. After giving red color to scattered points i used attribute wrangle for giving velocity and active data = 0

@v.x = @P.x*@Cd.r;
@v.y = @P.y*@Cd.r;
@v.z = @P.z*@Cd.r;

@Cd = 0;
i@active = 0;

On the right side i added another sphere for animation with transform1 and there is attrib wrangle like 

@Cd = 0;
@Cd.r =1;
i@active = 1;

I have active = 0 data on the left and active = 1 data on right. With attribute an atransfer i am transfering the active data to the points like this.

After transfered animated active data to my packed geometry i assembled and created packed geometry and transfered active attribute. Now all data is ready for bullet sim.

First of all i am using rbdpackedobjects for bringing all packed geometry to inside of the Dop Network and click override attribute and use active. This way our active data will be over-ride and that data we are taking from the geometry sop. We can animate by hand our Black to Red animation out of the Dop Network and then can get it to the inside of the Dop Network and over-ride it to original active data. And after that we can use that data for anything that we want.

On the popwrangle i used @activation = point(0,"active",@ptnum); and created activation data for using them for pop winds

On popwind1 and popwind2 i used VEX for activation like this "wind *= @activation;"

This way when out acitve data turn to the red color (active will be 1) our wind will active and start to work.

Just becasue we used rbdpackedobject we need to feed them with bullet solver and connect them to the multi-solver because or popwrange turned to another solver. To work with multi solver we need mult-solver sop. According to my simulation i didnt need popdrag and that way bypassed it but there will be needed to cooldown your particles in the space. If there is a rotate problem with your geometries , you should use pop drag spin sop also.