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In computer graphics, metaballs, also known as blobby objects, [1] [2] are organic-looking n-dimensional isosurfaces, characterised by their ability to meld together when in close proximity to create single, contiguous objects. In solid modelling, polygon meshes are commonly used. In certain instances, however, metaballs are superior.
Isosurfaces are normally displayed using computer graphics, and are used as data visualization methods in computational fluid dynamics (CFD), allowing engineers to study features of a fluid flow (gas or liquid) around objects, such as aircraft wings.
This is a list of models and meshes commonly used in 3D computer graphics for testing and demonstrating rendering algorithms and visual effects. Their use is important for comparing results, similar to the way standard test images are used in image processing .
Creating the computer graphics necessary to visualize physics concepts led Blinn to invent new techniques for simulating clouds, as well as the virtual "blobby objects" known as metaballs. [23] Blinn used the vertex coordinates of regular icosahedra and dodecahedra to determine the placement of electric field lines radiating away from point ...
This is a list of computer graphics and descriptive geometry topics, by article name. 2D computer graphics; 2D geometric model; 3D computer graphics; 3D modeling; 3D projection; 3D rendering; A-buffer; Algorithmic art; Aliasing; Alpha compositing; Alpha mapping; Alpha to coverage; Ambient occlusion; Anamorphosis; Anisotropic filtering; Anti ...
In computer graphics software, 2D applications may use 3D techniques to achieve effects such as lighting, and similarly, 3D may use some 2D rendering techniques. The objects in 3D computer graphics are often referred to as 3D models. Unlike the rendered image, a model's data is contained within a graphical data file.
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In computer-aided engineering and finite element analysis, an object may be represented by a surface mesh of node points connected by triangles or quadrilaterals (polygon mesh). More accurate, but also far more CPU-intensive, results can be obtained by using a solid mesh. The process of creating a mesh is called tessellation. Once tessellated ...