Hey guys, Im in the middle of a shot, and heres a quick overview of what i want to achieve, and the problem im having:
I want to have a car explode as somones walking away, specifically, the top, one tail light, and both mirrors are going to blow off. The plan (and correct me if this is a bad way to go about it) Is to group those items, turn them into RBD fractured objects and use Voronoi fractures to get chunks, then keyframe on some velocity and activate the sim at the desired time.
My problem:
Ive got my car geometry in, and my current tree on this car is as follows:
File sop
color sop (to turn everything black)
paint sop (to paint the desired areas pure red)
Now im trying to find some way to make the red ones a group of some sort so that i can select just that area and make it the RBD and apply a fracture.
I tried using a partition with the rule “$cd” but it didnt do anything noticeable. I am also trying to use a group by expression, but when i set it to by expression im not sure where to put the expression, or what expression exactly to use.
*I thought of trying group by bounding box, but because i want the mirrors and just one tail light to explode as well, and not certain areas between them and the rest of the explosion, id prefer to learn how to do it with a paint.
Im going to continue fooling around on my own while i eagerly wait for some help, and will post if i solve it.
Thanks!
Group Primitives by Color
5251 5 0- a.branton
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- circusmonkey
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- a.branton
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Hey thanks a lot for the help!
I just have one question:
Just so that i understand what I am doing and can apply it to other projects - in your expression: $CR>=0.2 I know (at least i think) that the $CR part of it is for color red to get the R of RGB, however i dont know what the >=0.2 Is doing in the expression, could you explain?
I just have one question:
Just so that i understand what I am doing and can apply it to other projects - in your expression: $CR>=0.2 I know (at least i think) that the $CR part of it is for color red to get the R of RGB, however i dont know what the >=0.2 Is doing in the expression, could you explain?
- ragupasta
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- a.branton
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- ragupasta
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