Each type of blasting device has a different blasting power, the shooting will be based on the director's taste and the actor's costume thickness to choose. There are some big scenes even need dozens of explosions, the actor must follow the line to minimize the danger.
1, the blasting device is divided into a variety of
The blasting device is divided into a variety of more common in the north called "medicine head", the size of two or three matches about the same size, characterized by the strength of the blasting, and will not fly out of the debris, the weak point is not moisture-proof. Shooting in the South, generally commonly used blasting devices are hose gunpowder, small strength, high security, in the palm of the hand explosion will not be injured, but the explosion is small, sometimes pyrotechnics have detonated the device, the actor did not feel, expression did not keep up, and had to reshoot. Each type of blasting device according to the different blasting power, there are models. Which to choose, a look at the director's taste how "bloody", the second look at the actor's costume is thin or thick.
2, prop bombs
Soft explosives are much less destructive than military explosives. Military explosives are sometimes used in film and television works, but only used in huge explosion scenes, there must not be actors present. Inevitably shot out of the explosion of foreign objects, in order to minimize the damage, most of the shell of the prop bomb is made of foam, filled with some soil and ash, to create the effect of the explosion of dust flying in the sky. If the bomb is added to the soil and ash, people have to move away from three or four meters, mainly to avoid being projectiles accidentally hurt the eyes. If the pyrotechnician violation of the operation, the use of metal to do the bomb shell, the actors or pyrotechnicians themselves will be easily blown up. Also, some of the big scenes need dozens of explosions, the actors do not follow the line, through the explosion will also be dangerous.
3, special dolls
"Gathering" in the explosion scenes, they ordered a different posture of the dolls instead of actors. Shooting time, first let the actors in place, do a good job of action, and then called the actors away, so that wearing the same costume dolls in the same position "stand" over, and then detonate the explosives, the dolls blew up. Dolls are hollow, if you need to close-up arm blowing off the camera, in the arm of the internal "material", after the explosion, and then switch to the actor's camera.
The four steps to shoot the demolition scene
Before the demolition, the demolition division to determine the safety of the actor's distance, and then test explosions, and finally with the actor in-depth communication and positioning. After completing this series of steps, the demolition scene can start shooting.
1, the demolition division to determine the actors' safety distance
Before shooting, the demolition division should be based on the site conditions, the nature of the object to be blown up and what objects near the blasting point to determine the need for what kind of power of the explosive device, and calculate the scope of the blasting as well as the actor's safety distance, "for example, a motorcycle with the explosion of a car, the scope of the blast and safety distance is completely different. distance will be completely different, which is very much in need of the experience of the blaster, as well as accurate measurements beforehand."
2, the demolition engineer test explosion
Measured data, the demolition engineer in the explosion occurred in the location, with a number of props for the test explosion, to verify the safety of the distance is accurate, and to ensure that the shooting effect of the situation, design the safest escape route and time for actors, the explosion point to mark in order to remind the actors.
3, actors and blasters in-depth communication and positioning
This is the most important part of the blasting scene, the actors and blasters must be in-depth communication to understand the intentions of both sides, the establishment of a tacit understanding, and in the blaster led by the positioning. At this point, the actor's trust in the demolition division is very important, "the actor must be in the demolition division to press the button to start the demolition of the moment to escape, escape fast not, escape late more not, tacit understanding is very important. It's a very simple thing to say, it's very difficult to do."
4, medical staff, equipment in place
In the formal blasting scene into the shooting, the relevant medical staff, medical equipment in place, just in case.