In 3D va do hoa bien mo hinh thanh be mat: tam giac, lop, duong in va pixel.

Cong thuc chinh

A_triangle = 1/2 |(v2 - v1) x (v3 - v1)|
S_mesh = sum of triangle areas

Vi du thuc te

Example: a right triangle with base 4 and height 3 has area = 1/2 x 4 x 3 = 6.

Tai nguyen lien quan

Use Sphere, Cylinder, Ellipsoid, and composite shapes.