Material

A material is basically a key/value store, defining rendering options which a renderer may respect. It should not be fixed to a certain material type but be flexible to put any kind of options into it (including user-defined ones). It also has to include textures.

The issue names no files, tests, or entry points. Begin by locating the existing material and renderer definitions, then determine how material options and textures are currently represented. Done means agreeing on and implementing a flexible material model that supports renderer options, user-defined options, and textures.

Written by the indexing model from the issue text.