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[1] [2] Available modelling kernels include: ACIS is developed and licensed by Spatial Corporation of Dassault Systèmes. SMLib is developed by Solid Modeling Solutions. [3] Convergence Geometric Modeler [4] is developed by Dassault Systèmes. Parasolid is developed and licensed by Siemens. Romulus was a predecessor to Parasolid.
Grasshopper is a visual programming language and environment that runs within the Rhinoceros 3D computer-aided design (CAD) application. The program was created by David Rutten, at Robert McNeel & Associates. [2]
Rhinoceros (typically abbreviated Rhino or Rhino3D) is a commercial 3D computer graphics and computer-aided design (CAD) application software that was developed by TLM, Inc, dba Robert McNeel & Associates, an American, privately held, and employee-owned company that was founded in 1978.
Autodesk purchased the product at the second release update of the 3D Studio MAX version and internalized development entirely over the next two releases. Later, the product name was changed to "3ds max" (all lower case) to better comply with the naming conventions of Discreet , a Montreal-based software company which Autodesk had purchased.
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A NURBS curve. (See also: the animated creation of a NURBS spline.) A NURBS surface. Non-uniform rational basis spline (NURBS) is a mathematical model using basis splines (B-splines) that is commonly used in computer graphics for representing curves and surfaces.
It is still a linear interpolation between 3 images for b=0, 0.5, 1. But now the image for b =1 is not γ=0.5, but the result of a tonal curve which differs from the curve of γ=0.5 for small values of a : while gamma correction with γ=0.5 may increase the value of a many times, this new curve limits the increase of a by coefficient 4.
In the context of seismic migration, specularity is defined as the cosine of the angle made by the surface normal vector and the angle bisector of the angle defined by the directions of the incident and diffracted rays. [3]