Physics Archives

Making things float on water in Unreal Engine 5.1 and 5.2

I’ve seen a couple of good tutorials about how to make things float with the experimental built-in water plugin that came with Unreal Engine 5. Sadly these tips didn’t work in Unreal Engine 5.1 and 5.2 due to a bug that doesn’t install the relevant collision profile on the water body. This causes the floating …

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Getting started with Bullet Physics in Poser


Bullet is an open-source physics engine which was integrated with the release of Poser 10 and Poser Pro 2014. It allows us to use soft and rigid body dynamics in our scenes.

Rigid bodies are solid objects that do not deform when they collide with other objects. Think of bowling pins that are hit by a ball. Soft bodies on the other hand deform upon impact, like cloth or rubber.

I had always assumed that Bullet Physics has something to do with projectiles being fired from guns, perhaps for use in game engines. Turns out that it’s just the name of the engine itself, which is also part of many other 3D applications like Blender.

Here’s a quick overview on how to use this thing in Poser.

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Using the Physics Engine in Carrara

Carrara has a built-in physics engine which is very capable of calculating dynamic animations. Here’s how to setup a basic scene with physics. Physics are already setup in every new scene with a default gravity. Feel free to change the Simulation Accuracy and Geometric Fidelity different results before messing with each single object. You can find …

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