Forms

Form
Form is a one of several or many different ways in which something is seen, experienced, or produced.

Primary Solids 
Primary solids are primary shapes that have been extended into three dimensional solid shapes. Circles become spheres or cylinders, triangles become cones or pyramids, while squares becomes cubes.

Example of primary solids in the real world:

Pyramid of Giza

Dimensional Transformation
Dimensional transformation is when a form’s length, width or height is altered but can still be identified to its form family.

Example of dimensional transformation in the real world:

Cyber Tecture Egg Building

Subtractive Forms
Subtractive Forms is when a form is transformed by removing a portion of its volume but it can still be identified to its form family. However, n some extreme subtractive transformation the shape may become unrecognizable and even a part of another form’s family.

Example of subtractive forms in the real world:

 Interior Design Ideas & Modern Furniture Blog Magazine

Additive Forms
Just how there are subtractive forms there are also additive forms. Additive form is when an addition of volume or another form has been added to the existing form. The type of additive forms can be centralizes, linear,radial, clustered, or grid forms.

Example of additive forms in the real world:

 Captivating Modern Home in Monasterios, Spain

Formal Collisions of Geometry

Formal Collisions is when two different forms or like forms combine fighting for dominance in some cases. These type of collisions can be circle & square, rotated grid, articulation of form, edges & corners or surfaces.

Example of formal collisions in the real world:

Bodiam Castle