You must be a registered member of ProductionCrate to post to the forum. Click here to register or login if you are already a member.

Welcome to the new forums! If you would like to contribute, click here.

Realistic ground burst in Blender?  


New Member
Joined: 2 years  ago
Posts: 2
18/12/2018 9:43 am  

Hi Craters,

I am trying to create a realistic looking ground burst/explosion in Blender, to then render as an OpenEXR so I can extract the depth pass for compositing in After Effects. The problem is I don't really know where to start. I've done basic Blender animations in the past, but nothing for realistic compositing. If anyone could supply helpful tips, videos or breakdowns that would be awesome! 

Thanks 🙂 

David Blaker
Crate Crafter Admin
Joined: 2 years  ago
Posts: 196
18/12/2018 10:06 am  

I'm not an experienced blender user, but here's roughly what you need to do:

  • Create two flat cuboids, with one directly on top of the other
  • Use a fracture script/modifier to break up the top cuboid, and set all of these fractures as an active rigid body
  • Set the lower cuboid as a passive/static rigid body
  • You can then use an explosion force underneath the fractures to simulate the rocks all being blasted into the air beautifully!

Just make sure the materials and lighting are set up nicely and you're good to go!

Fred The Fantastical
Eminent Member
Joined: 1 year  ago
Posts: 33
28/02/2019 4:25 pm  

you may also be able to use the cell fracture and quick explode.