Where licenses are sold
Commercial shader licenses are sold on FragCoord, not through checkout on this site. The certificate issued with that purchase is the license. It states the rights for that shader, including whether credit is required.
What you receive
A FragCoord purchase unlocks the parameterized GLSL and a downloadable bundle, plus the license certificate in your FragCoord license library.
Shaders without a listing
The arsenal lists the public library on FragCoord. A shader without a license button is a preview. It is not a grant to use the source. Shaders previously published as MIT on X remain MIT with attribution to Xor.
Earlier purchases on this site
Licenses bought on xordev.com before checkout moved to FragCoord remain under the terms that applied at the time of that purchase.
Restrictions
A license lets you use the shader in your projects. It does not let you redistribute or resell the raw source as a standalone shader pack. The FragCoord certificate controls the exact grant.
Contact
xor@xordev.com