Added SimpleSkin example

2.0/README.md

@@ -12,6 +12,7 @@
 | [Simple Meshes](SimpleMeshes)                          | ![](SimpleMeshes/screenshot/screenshot.png)                     | A simple `scene` with two `nodes`, both containing the same `mesh`, namely a `mesh` with a single `mesh.primitive` with a single indexed triangle with *multiple* attributes (positions, normals and texture coordinates), but without a `material` |
 | [Simple Morph](SimpleMorph)                            | ![](SimpleMorph/screenshot/screenshot.png)                      | A triangle with a morph animation applied |
 | [Simple Sparse Accessor](SimpleSparseAccessor)         | ![](SimpleSparseAccessor/screenshot/screenshot.png)             | A simple mesh that uses sparse accessors |
+| [Simple Skin](SimpleSkin)                              | ![](SimpleSkin/screenshot/screenshot.gif)                       | A simple example of vertex skinning in glTF
 | [Cameras](Cameras)                                     | ![](Cameras/screenshot/screenshot.png)                          | A sample with two different `camera` objects |
 | [Interpolation Test](InterpolationTest)                | ![](InterpolationTest/screenshot/screenshot.gif)                | A sample with three different `animation` interpolations |
 

2.0/SimpleSkin/README.md

@@ -0,0 +1,24 @@
+# SimpleSkin
+
+A simple example for vertex skinning in glTF 2.0. 
+
+Details about skinning using this particular model are explained in the
+[skinning section of the glTF tutorial](https://github.com/javagl/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_019_SimpleSkin.md).
+
+## Screenshot
+
+![screenshot](screenshot/screenshot.gif)
+
+## License Information
+
+Public domain ([CC0](https://creativecommons.org/publicdomain/zero/1.0/))
+
+## Data layout
+
+The following images show the data layout of this sample:
+
+![skinGeometry](screenshot/skinGeometry.png)
+![skinAnimation](screenshot/skinAnimation.png)
+![inverseBindMatrices](screenshot/inverseBindMatrices.png)
+![skinningData](screenshot/skinningData.png)
+

2.0/SimpleSkin/glTF-Embedded/SimpleSkin.gltf

@@ -0,0 +1,131 @@
+{
+  "scene" : 0,
+  "scenes" : [ {
+    "nodes" : [ 0, 1 ]
+  } ],
+
+  "nodes" : [ {
+    "skin" : 0,
+    "mesh" : 0
+  }, {
+    "children" : [ 2 ],
+    "translation" : [ 0.0, 1.0, 0.0 ]
+  }, {
+    "rotation" : [ 0.0, 0.0, 0.0, 1.0 ]
+  } ],
+
+  "meshes" : [ {
+    "primitives" : [ {
+      "attributes" : {
+        "POSITION" : 1,
+        "JOINTS_0" : 2,
+        "WEIGHTS_0" : 3
+      },
+      "indices" : 0
+    } ]
+  } ],
+
+  "skins" : [ {
+    "inverseBindMatrices" : 4,
+    "joints" : [ 1, 2 ]
+  } ],
+
+  "animations" : [ {
+    "channels" : [ {
+      "sampler" : 0,
+      "target" : {
+        "node" : 2,
+        "path" : "rotation"
+      }
+    } ],
+    "samplers" : [ {
+      "input" : 5,
+      "interpolation" : "LINEAR",
+      "output" : 6
+    } ]
+  } ],
+
+  "buffers" : [ {
+    "uri" : "data:application/gltf-buffer;base64,AAABAAMAAAADAAIAAgADAAUAAgAFAAQABAAFAAcABAAHAAYABgAHAAkABgAJAAgAAAAAvwAAAAAAAAAAAAAAPwAAAAAAAAAAAAAAvwAAAD8AAAAAAAAAPwAAAD8AAAAAAAAAvwAAgD8AAAAAAAAAPwAAgD8AAAAAAAAAvwAAwD8AAAAAAAAAPwAAwD8AAAAAAAAAvwAAAEAAAAAAAAAAPwAAAEAAAAAA",
+    "byteLength" : 168
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAABAPwAAgD4AAAAAAAAAAAAAQD8AAIA+AAAAAAAAAAAAAAA/AAAAPwAAAAAAAAAAAAAAPwAAAD8AAAAAAAAAAAAAgD4AAEA/AAAAAAAAAAAAAIA+AABAPwAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAA=",
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+  }, {
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+    "byteLength" : 128
+  }, {
+    "uri" : "data:application/gltf-buffer;base64,AAAAAAAAAD8AAIA/AADAPwAAAEAAACBAAABAQAAAYEAAAIBAAACQQAAAoEAAALBAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAPT9ND/0/TQ/AAAAAAAAAAD0/TQ/9P00PwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAPT9NL/0/TQ/AAAAAAAAAAD0/TS/9P00PwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAAAAAAAAAIA/",
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+  } ],
+
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+    "target" : 34962
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+    "byteStride" : 16
+  }, {
+    "buffer" : 2,
+    "byteLength" : 128
+  }, {
+    "buffer" : 3,
+    "byteLength" : 240
+  } ],
+
+  "accessors" : [ {
+    "bufferView" : 0,
+    "componentType" : 5123,
+    "count" : 24,
+    "type" : "SCALAR"
+  }, {
+    "bufferView" : 1,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC3",
+    "max" : [ 0.5, 2.0, 0.0 ],
+    "min" : [ -0.5, 0.0, 0.0 ]
+  }, {
+    "bufferView" : 2,
+    "componentType" : 5123,
+    "count" : 10,
+    "type" : "VEC4"
+  }, {
+    "bufferView" : 2,
+    "byteOffset" : 160,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC4"
+  }, {
+    "bufferView" : 3,
+    "componentType" : 5126,
+    "count" : 2,
+    "type" : "MAT4"
+  }, {
+    "bufferView" : 4,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "SCALAR",
+    "max" : [ 5.5 ],
+    "min" : [ 0.0 ]
+  }, {
+    "bufferView" : 4,
+    "byteOffset" : 48,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "VEC4",
+    "max" : [ 0.0, 0.0, 0.707, 1.0 ],
+    "min" : [ 0.0, 0.0, -0.707, 0.707 ]
+  } ],
+
+  "asset" : {
+    "version" : "2.0"
+  }
+}

2.0/SimpleSkin/glTF/SimpleSkin.gltf

@@ -0,0 +1,131 @@
+{
+  "scene" : 0,
+  "scenes" : [ {
+    "nodes" : [ 0, 1 ]
+  } ],
+
+  "nodes" : [ {
+    "skin" : 0,
+    "mesh" : 0
+  }, {
+    "children" : [ 2 ],
+    "translation" : [ 0.0, 1.0, 0.0 ]
+  }, {
+    "rotation" : [ 0.0, 0.0, 0.0, 1.0 ]
+  } ],
+
+  "meshes" : [ {
+    "primitives" : [ {
+      "attributes" : {
+        "POSITION" : 1,
+        "JOINTS_0" : 2,
+        "WEIGHTS_0" : 3
+      },
+      "indices" : 0
+    } ]
+  } ],
+
+  "skins" : [ {
+    "inverseBindMatrices" : 4,
+    "joints" : [ 1, 2 ]
+  } ],
+
+  "animations" : [ {
+    "channels" : [ {
+      "sampler" : 0,
+      "target" : {
+        "node" : 2,
+        "path" : "rotation"
+      }
+    } ],
+    "samplers" : [ {
+      "input" : 5,
+      "interpolation" : "LINEAR",
+      "output" : 6
+    } ]
+  } ],
+
+  "buffers" : [ {
+    "uri" : "skinGeometry.bin",
+    "byteLength" : 168
+  }, {
+    "uri" : "skinningData.bin",
+    "byteLength" : 320
+  }, {
+    "uri" : "inverseBindMatrices.bin",
+    "byteLength" : 128
+  }, {
+    "uri" : "skinAnimation.bin",
+    "byteLength" : 240
+  } ],
+
+  "bufferViews" : [ {
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+    "target" : 34963
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+    "byteStride" : 16
+  }, {
+    "buffer" : 2,
+    "byteLength" : 128
+  }, {
+    "buffer" : 3,
+    "byteLength" : 240
+  } ],
+
+  "accessors" : [ {
+    "bufferView" : 0,
+    "componentType" : 5123,
+    "count" : 24,
+    "type" : "SCALAR"
+  }, {
+    "bufferView" : 1,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC3",
+    "max" : [ 0.5, 2.0, 0.0 ],
+    "min" : [ -0.5, 0.0, 0.0 ]
+  }, {
+    "bufferView" : 2,
+    "componentType" : 5123,
+    "count" : 10,
+    "type" : "VEC4"
+  }, {
+    "bufferView" : 2,
+    "byteOffset" : 160,
+    "componentType" : 5126,
+    "count" : 10,
+    "type" : "VEC4"
+  }, {
+    "bufferView" : 3,
+    "componentType" : 5126,
+    "count" : 2,
+    "type" : "MAT4"
+  }, {
+    "bufferView" : 4,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "SCALAR",
+    "max" : [ 5.5 ],
+    "min" : [ 0.0 ]
+  }, {
+    "bufferView" : 4,
+    "byteOffset" : 48,
+    "componentType" : 5126,
+    "count" : 12,
+    "type" : "VEC4",
+    "max" : [ 0.0, 0.0, 0.707, 1.0 ],
+    "min" : [ 0.0, 0.0, -0.707, 0.707 ]
+  } ],
+
+  "asset" : {
+    "version" : "2.0"
+  }
+}