Page Comparison

Versions Compared

Key

This line was added.
This line was removed.
Formatting was changed.

...

Expand

title	MaterialX Version Sync

What is the desired process to keep USD up to date with a given version of MaterialX.

Property	Description	USD level	USD/MTLX level	MTLX level	Status	Proposal(s)
API change handling	Some versions break API compatibility.		Y	Y	Need to discuss this. Jonathan Stone noted future versions need to be more careful about possible compatibility breaking changes (API, definition etc).	Individual fixes as they come (e.g. PR-1633)
Compile time version	Allow compile time version exposure.			Y		PR to know version of MTLX at compile time PR-704

1586

Expand

title	Properties List

Property	Description	USD level	USD/MTLX level	MTLX level	Status	Proposal(s)
namespace	Helpful to qualify definitions with a given scope to avoid name clashes. e.g. there may be a Adobe vs ILM namespace.				Issue 1614 logged	Encode namespace as part of definition identifier (no consensus) (PR 1631)
colorspace	Color management tagging for inputs as well as color management system specification.	Y			Agreement to support as formal property. Needs scoping and definition. Issue 1532 logged for MTLX export. Internal issue: USD-6703 (old - pre-agreement)	"Follow what is going on with MaterialX". (vague)
ui value properties	Hints for UI. e.g. ui min, max, step etc.	Y			Separate proposal for this.
unit / dimension support	Support for a real world unit or dimension for an given shader input. The type of the unit may be dynamic / data driven.				Issue 1632 logged. Internal issue: USD-6928.
tokens	Import and resolving of token names used for geometric and file identifiers. Can include consistency of token delimiters		Y
fileprefx					Issue 974 logged. Admin: not closed	Resolved in PR 977.
version	Definition versioning				tbd

...