Explosion scene - using fluid dynamics and gravity settings:

One of the most dynamic scenes within the film is when one of the walls into the back is blown open so that the two characters can enter the room.

To create this effect I used some of the Ndynamics features:

1. I created a polygon and then, using the cut faces tool, I created lots of jagged faces all over the polygon. I then detached the faces so that they were all separate pieces.
2. I then made the polygons an Ncloth.
3. Then created a sphere and keyed it so that it moves through the wall.
4. selected both the sphere, wall and the rest of the set and made them all passive colliders. this then made a shatter effect.

Although the general effect looked good and worked well. all of the pieces seemed to float too much and weren't weighted enough. to resolve this problem, I altered the gravity settings so that the pieces fell more naturally.

This clip shows all of the various attempts at creating a realistic explosion, as well as using different sized sections of rubble and the speed at which the pieces fell. the last explosion is the final animation that will be used in the film.

 

 

Overall, I am really pleased with the end result all it the explosion is realistic and dynamic, and will really hep to lift the action of the rest of the film.