I hear the term “rendering” thrown around in both traditional and digital art communities like it’s some sort of buzzword, but I’ve never gotten a clear explanation as to what it means.
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Rendering is to artists as compiling is to software engineers.
The artist puts any number of polygons (squares/cubs, rectangles/rectangular cuboid, triangles/pyramids, and circles/cylinders for 2d/3d designs) into a 3D computer graphic design software and these polygons make for a very blocky, pointy, and generally framework looking product.
When the artist hits the ‘render’ button the software takes all the corner/point vectors/locations in the polygon design and smooths it out. The more polygons in the render the smoother the end product and the longer it takes. More computer power generally just reduces the time it takes to render.
TL:DR artist 2d/3d rendering is taking the basic framework/skeleton of a computer image and smooth it out to what is seen in the end product.
https://www.scratchapixel.com/lessons/3d-basic-rendering/rendering-3d-scene-overview/rendering-3d-scene
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