Clarify TRS order

KhronosGroup · Sep 10, 2016 · eb4afea · eb4afea
1 parent 19faf4e
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/specification/README.md b/specification/README.md
@@ -2435,7 +2435,7 @@ A node in the node hierarchy.  A node can have either the `camera`, `meshes`, or
 
 In the later case, all `primitives` in the referenced `meshes` contain `JOINT` and `WEIGHT` attributes and the referenced [`material`](#reference-material)/[`technique`](#reference-technique) from each `primitive` has parameters with `JOINT` and `WEIGHT` semantics.
 
-A node can have either a `matrix` or any combination of `translation`/`rotation`/`scale` (TRS) properties.  If none are provided, the transform is the identity.
+A node can have either a `matrix` or any combination of `translation`/`rotation`/`scale` (TRS) properties. TRS properties are converted to matrices and postmultiplied in the `T * R * S` order to compose the transformation matrix. If none are provided, the transform is the identity.
 
 **Properties**
 

diff --git a/specification/schema/node.schema.json b/specification/schema/node.schema.json
@@ -2,7 +2,7 @@
     "$schema" : "http://json-schema.org/draft-03/schema",
     "title" : "node",
     "type" : "object",
-    "description" : "A node in the node hierarchy.  A node can have either the `camera`, `meshes`, or `skeletons`/`skin`/`meshes` properties defined.  In the later case, all `primitives` in the referenced `meshes` contain `JOINT` and `WEIGHT` attributes and the referenced `material`/`technique` from each `primitive` has parameters with `JOINT` and `WEIGHT` semantics.  A node can have either a `matrix` or any combination of `translation`/`rotation`/`scale` (TRS) properties.  If none are provided, the transform is the identity.",
+    "description" : "A node in the node hierarchy.  A node can have either the `camera`, `meshes`, or `skeletons`/`skin`/`meshes` properties defined.  In the later case, all `primitives` in the referenced `meshes` contain `JOINT` and `WEIGHT` attributes and the referenced `material`/`technique` from each `primitive` has parameters with `JOINT` and `WEIGHT` semantics.  A node can have either a `matrix` or any combination of `translation`/`rotation`/`scale` (TRS) properties. TRS properties are converted to matrices and postmultiplied in the `T * R * S` order to compose the transformation matrix. If none are provided, the transform is the identity.",
     "extends" : { "$ref" : "glTFChildOfRootProperty.schema.json" },
     "properties" : {
         "camera" : {