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3D OBJECT MODELING - Coggle Diagram
3D OBJECT MODELING
3D Modelling Techniques
Spatial partitioning techniques
Polygonal-based techniques
Spline-based techniques
Constructive Solid Geometry (CSG)
Spatial Partitioning Techniques
Octree
dividing the space
into voxels of varying size
Quadtree
e employs a tree data structure in which
each internal node has up to four children.
Voxel model
Partitioning the 3D space into a grid of
small, equivalent-sized cubes
Spline-Based Techniques
Spline refers to a piecewise polynomial
parametric curve.
B-Spline curves
Rational curves
Hermite curves
NURBS
Bezier curves
Spline-Related Operations
Extrude
Create a surface by expanding the
selected curve.
Loft
Create a surface by selecting a series
of curves.
Sweep
Create a surface by selecting the primary curve as a base shape & secondary curve(s) as a reference shape.
introduction
3D modeling is the process of developing a mathematical representation of any 3D surface of an object
boxes
spheres
cylinders
cones
How to make objects to appear “3D” in
computer graphics?
To create various objects, we need to
specify points, lines, edges & planes