Add a Draco glTF guide.

docs/guides/GLTF.md

@@ -0,0 +1,43 @@
+# glTF
+
+Using [glTF](https://www.khronos.org/gltf/) with Draco.
+
+## Encode Draco glTF Using gltf-pipeline
+
+### Prerequisites
+
+Install [node.js](https://nodejs.org) 6.0 or greater. See the node.js [downloads](https://nodejs.org/en/download/) for details.
+
+### Installing
+
+Clone this [forked repository](https://github.com/FrankGalligan/gltf-pipeline) of gltf-pipeline using this command line:
+```
+git clone git@github.com:FrankGalligan/gltf-pipeline.git
+cd gltf-pipeline
+```
+_**Note** that we **strongly** recommend [using SSH] with GitHub, not HTTPS._
+
+Check out the Draco compression extension branch.
+```
+git checkout -b draco_compression_extension origin/draco_compression_extension
+```
+
+Install all the dependencies.
+```
+npm install
+```
+
+
+### Encode Draco glTF
+
+Encode the Draco glTF using default settings.
+```
+node ./bin/gltf-pipeline.js -i <in>.gltf -d -s -o <out>.gltf
+```
+
+The encoded glTF data will be written to the `output` folder.
+
+
+## Render Draco glTF Using three-gltf-viewer
+
+

docs/guides/README.md

@@ -10,3 +10,6 @@ _**Contents**_
   * [Browser](BROWSER.md)
     * [JavaScript Decode](BROWSER.md#JavaScript-Decode)
     * [Three.js Render](../../javascript/example/README.md)
+  * [glTF](GLTF.md)
+    * [Encode Draco glTF Using gltf-pipeline](GLTF.md#Encode-Draco-glTF-Using-gltf-pipeline)
+    * [Render Draco glTF Using three-gltf-viewer](GLTF.md#Render-Draco-glTF-Using-three-gltf-viewer)