Rendering slide (AutoCAD-AutoShade)
RND is a rendering slide file format created by AutoShade. AutoShade was released in 1987, and was one of the first computer programs for 3-D rendering. RND files contain data information used to add color and shading to the wireframe of the 3-D images. RND files are also used by Auto-CAD, a more evolved and advanced form of the AutoShade program.
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