Summary

State the problem that this RFC is trying to address clearly but briefly

Explanation

Give examples, elaborate on the proposal

Drawbacks

List potential issues that one would want to have discussed in the RFC comment section

Alternatives

A list of potential alternatives, though sometimes they can arise from the comments as well.

Prior art

Usually this will involve looking at current shading languages out there to see if we can either borrow concepts from them, or if we can improve upon existing concepts.