metal:+triangle+ metal:+line+ metal:+point+ metal:+triangle-strip+ metal:+cull-none+ metal:+cull-front+ metal:+cull-back+ metal:+winding-clockwise+ metal:+winding-counter-clockwise+ metal:+compare-less+ metal:+compare-always+

metal:+triangle+ metal:+line+ metal:+point+ metal:+triangle-strip+ metal:+cull-none+ metal:+cull-front+ metal:+cull-back+ metal:+winding-clockwise+ metal:+winding-counter-clockwise+ metal:+compare-less+ metal:+compare-always+

Metal's enums are plain integers on the wire, and these are the members a drawing program spells out: the primitive it draws (drawPrimitives:...), the cull mode and winding it sets on the encoder, and the depth comparison it hands metal:depth-state. The pixel formats, load and store actions, blend factors and storage modes are metal:attach / metal:pipeline / metal:frame's own business and are not exported. Part of the metal package, a Metal drawing surface written in rontolisp over objc and loaded on first use: macOS (java -jar, the rontolisp binary, or a compiled .class / .jar; never a .wasm), with a display. See the macOS GUI guide.

CL-USER> (list metal:+point+ metal:+line+ metal:+triangle+ metal:+triangle-strip+)
(0 1 3 4)
CL-USER> (objc:send encoder "setCullMode:" metal:+cull-back+)