Geometry was first introduced by René Descartes and the type of math is about a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. A mathematician who works in the field of geometry is called a geometer. Furthermore, is also a branch of mathematics that deals with the measurement, properties and relationships of points, lines, angles, surfaces and solids. Geometry is perhaps the most elementary of the sciences that enable man, by purely intellectual processes, to make predictions about physical world. The power of geometry, in the sense of accuracy and utility of these deductions, is impressive, and has been a powerful motivation for the study of logic in geometry.
Above are some 3D shapes that show the geometric line that is held within the shapes. As you can see each shape has a different amount of geometric lines with some being parallel and others not.
Below is how the fundamental principles behind the creation of virtual 3D space works
3D displays create the illusion of depth by presenting a different image to each eye, solid geometry is geometry of 3D shapes. Furthermore the reason it is called solid or 3D geometry is because it has three dimensions, Length, Width and Height. Shooting and transmitting images in Stereoscopic 3D is an attempt to replicate what we see with our own two eyes, for instance when shooting a 3D image, two cameras are used to capture separate images of the same object from slightly different angles at one fixed viewpoint and that when played back on a display, the left image is shown only to your left eye and the right image only to your right eye, Your brain then fuses these two images to give you a perception of depth.