A language for the classification and shading of multivariate volume data
Thomas C. Palmer, EDWARD V. SIMPSON, William McFate Smith · The Journal of Visualization and Computer Animation · 1993
Abstract A novel, language‐based interface to the specification of multivariate volume classification and shading algorithms has been implemented. The system facilitates experimentation by providing access to data relevant to volume classification and shading (scalars, gradients, and gradient magnitudes) in a C‐like language environment. The user writes code to calculate opacity and colour on a per voxel basis. The code is interpreted and compiled in a transparent fashion and then executed on a volume data‐set. The output is a volume primitive suitable for input to standard volume rendering algorithms.