#takayamaquote

[hyruleinterviews]

Takayama on the true menace in Hyrule, 2024.

Source: Game Developers Conference (GDC)

PEOPLE:

Takahiro Takayama. Physics Programming Lead on Breath of the Wild & Tears of the Kingdom.

QUOTE: Takayama: When I first saw the prototype [for Tears of the Kingdom], I was excited that this was going to be a great game. But I also knew this was going to be very, very difficult. I said to myself, "Are we really doing this? Development is going to be chaos." The more I thought, the more I worried. But in life, it's sometimes important to have the courage to push forward. As expected, the world fells apart.

[He shows footage of ludicrous physics bugs]

At this rate, the world will destroy itself before Ganon comes back. And so began our battle against the true menace of Hyrule.

[hyruleinterviews]

Takayama on water resistance in Tears of the Kingdom, 2024.

Source: Game Developers Conference (GDC)

https://www.notion.so/5daa8b399c3d4fe7ac790ccdf2ad3eac

PEOPLE:

Takahiro Takayama. Physics Programming Lead in Tears of the Kingdom.

QUOTE: Takayama: In order to simulate water resistance [in Tears of the Kingdom], when an object enters the water, we use the projected area of the direction of velocity to calculate the resistance.

An easier way to simulate water resistance would be to simply apply velocity decay in all directions. But in order for rafts and boats to have a more convincing field and movement to them, we needed changes in velocity based on the contact surface.

[hyruleinterviews]

Some Takayama quotes about how every object in Tears of the Kingdom is built with functional simulated physics, 2024

Source: Game Developers Conference (GDC)

https://www.notion.so/5daa8b399c3d4fe7ac790ccdf2ad3eac

Post #1:

PEOPLE:

Takahiro Takayama. Physics Programming Lead for Tears of the Kingdom.

QUOTE: Takayama: A world with a high degree of freedom requires everything to be physics driven.

Every single thing [in Tears of the Kingdom] without exception is built with dynamic rigid bodies and constraints [instead of with kinematic rigid bodies].

And this is what allowed us to create a world in which players can freely translate their creativity and imagination into action without destroying the world.

Post #2:

PEOPLE:

Takahiro Takayama. Physics Programming Lead for Tears of the Kingdom.

QUOTE: Takayama: Take the wheel [Zonai component in Tears of the Kingdom]. It's comprised of three rigid bodies: the wheel, motor, and shaft. Instead of the shaft connecting directly with the wheel, it holds up the motor.

The torque from the motor transfers to the wheel's rigid body, causing it to rotate, and the friction between the ground and the wheel creates the driving force.

[hyruleinterviews]

Takayama on Physics-driven vs kinematic rigid body control in Tears of the Kingdom, 2024.

Source: Game Developers Conference (GDC)

https://www.notion.so/5daa8b399c3d4fe7ac790ccdf2ad3eac

PEOPLE:

Takahiro Takayama. Physics Programming Lead on Tears of the Kingdom.

QUOTE: Takayama: Physics-driven [objects] have mass and moment of inertia, and they can be controlled using things like velocity and acceleration.

So what … is a non-physics-driven object? … A kinematic rigid body. It is forcibly moving a rigid body at a velocity calculated from the animation. The implementation is easy and the results are visually easy to understand. So we used it quite a bit [early in Tears of the Kingdom’s development].

However, rigid bodies controlled by kinematics have infinite mass and can break down a physics-based calculation. …This meant chaos for us. The clash between these non-physics driven objects and Ultrahand with its high degree of freedom caused daily problems.