Transformartions vs Physics

[thekey]

I cannot understand the difference between 3d transformations and physics. I mean transformations calculate where the triangles need to move... and physics? They do just that. How do they complement each other.

 

[Humus]

Physics computes stuff oin a high level. Character A goes in direction B and hits object C. It computes interactions between various objects in the scene.

Transformation is merely putting the vertices of the object in place on the screen, often using information gathered when computing physics. Transformation usually consists of scaling, translating and rotating.