Contents
Why the collision and physics is needed on the game development?
In the broad phase of collision physics for video games we need to identify which pairs of rigid bodies might be colliding. These bodies might have complex shapes like polygons and polyhedrons, and what we can do to accelerate this is to use a simpler shape to encompass the object.
How does a collision engine work?
After a collision, the impact force dies out, and external forces act on the object once again. The equation of motion is solved, providing a new position and velocity. The physics engine performs this process continuously, and it creates the illusion that an object is falling due to gravity.
What is collision detection in game engine?
Collision detection concerns the detection of collisions between objects in the virtual environment. Primarily employed to stop objects moving through each other and the environment. Collision Detection is everywhere in computer games: between characters and characters, between characters and terrain, etc.
How does the force of a car collision affect the car?
From Cars to Particles. The only force that acts on the car is the sudden deceleration from v to 0 velocity in a brief period of time, due to the collision with another object. However, when viewing the total system, the collision in the situation with two cars releases twice as much energy as the collision with a wall.
What happens when two particles collide in a car?
From Cars to Particles. From the particle’s standpoint, they don’t so much “shatter more,” but when the two particles collide, more energy is released. In collisions of particles, this energy can take the form of other particles, and the more energy you pull out of the collision, the more exotic the particles are.
Why do physicists study high energy collisions?
This is why physicists accelerate particles in a collider to study high-energy physics. The act of colliding two beams of particles is useful because in particle collisions you don’t really care about the force of the particles (which you never really measure); you care instead about the energy of the particles.
How is the energy lost in a collision conserved?
Since these are inelastic collisions, the kinetic energy is not conserved, but total energy is always conserved, so the kinetic energy “lost” in the collision has to convert into some other form, such as heat, sound, etc.