Concepts:ColoursTextures
From S2PLOT
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S2PLOT provides a great deal of control over colours through both PGPLOT-style colour index commands for standard primitives, and direct manipulation of the R(ed), G(reen) and B(lue) values for points, lines, spheres and other native S2PLOT primitives.
The colour index range can be set using s2scr, and a range of standard and custom colour maps can be installed for use with isosurfaces and volume rendering.
Textures can be loaded and manipulated for use with 4-vertex polygons and billboarding (only in dynamic mode).
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