* Adjustment: Update Bullet version to 3.24.

Engine/lib/bullet/data/toys/LICENSE.txt

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+URDF created by Erwin Coumans
+
+Bullet Continuous Collision Detection and Physics Library
+http://bulletphysics.org
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it freely,
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.

Engine/lib/bullet/data/toys/concave_box.mtl

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+# Blender MTL File: 'None'
+# Material Count: 1
+
+newmtl None
+Ns 0
+Ka 0.000000 0.000000 0.000000
+Kd 0.8 0.8 0.8
+Ks 0.8 0.8 0.8
+d 1
+illum 2
+map_Kd ../checker_grid.jpg

Engine/lib/bullet/data/toys/concave_box.urdf

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+<?xml version="1.0" ?>
+<robot name="urdf_robot">
+  <link name="base_link">
+    <contact>
+      <rolling_friction value="0.001"/>
+      <spinning_friction value="0.001"/>
+    </contact>
+    <inertial>
+      <origin rpy="0 0 0" xyz="0 0 0"/>
+       <mass value="0"/>
+       <inertia ixx="1" ixy="0" ixz="0" iyy="1" iyz="0" izz="1"/>
+    </inertial>
+    <visual>
+      <origin rpy="0 0 0" xyz="0 0 0"/>
+      <geometry>
+				<mesh filename="concave_box.obj" scale="1 1 1"/>      
+      </geometry>
+      <material name="white">
+        <color rgba="1 1 1 1"/>
+      </material>
+    </visual>
+    <collision>
+      <origin rpy="0 0 0" xyz="0 0 0"/>
+      <geometry>
+				<cdf filename="concave_box.cdf" scale="1 1 1"/>      
+      </geometry>
+    </collision>
+  </link>
+</robot>
+

Engine/lib/bullet/data/toys/cube.mtl

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+# Blender MTL File: 'shape_sort.blend'
+# Material Count: 1
+
+newmtl Material.002
+Ns 96.078431
+Ka 0.000000 0.000000 0.000000
+Kd 0.017444 0.640000 0.032216
+Ks 0.034126 0.500000 0.031333
+Ni 1.000000
+d 1.000000
+illum 2

Engine/lib/bullet/data/toys/cylinder.mtl

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+# Blender MTL File: 'shape_sort.blend'
+# Material Count: 1
+
+newmtl Material.001
+Ns 96.078431
+Ka 0.000000 0.000000 0.000000
+Kd 0.013473 0.018536 0.640000
+Ks 0.500000 0.500000 0.500000
+Ni 1.000000
+d 1.000000
+illum 2

Engine/lib/bullet/data/toys/prism.mtl

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+# Blender MTL File: 'shape_sort.blend'
+# Material Count: 1
+
+newmtl Material.003
+Ns 96.078431
+Ka 0.000000 0.000000 0.000000
+Kd 0.640000 0.007339 0.006282
+Ks 0.500000 0.500000 0.500000
+Ni 1.000000
+d 1.000000
+illum 2

Engine/lib/bullet/data/toys/shape_sorter.mtl

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+# Blender MTL File: 'shape_sort.blend'
+# Material Count: 2
+
+newmtl Material.004
+Ns 96.078431
+Ka 0.000000 0.000000 0.000000
+Kd 0.640000 0.640000 0.640000
+Ks 0.500000 0.500000 0.500000
+Ni 1.000000
+d 1.000000
+illum 2
+map_Kd E:\develop\bullet3\data\table\table.png
+
+newmtl Material.004_NONE
+Ns 96.078431
+Ka 0.000000 0.000000 0.000000
+Kd 0.640000 0.640000 0.640000
+Ks 0.500000 0.500000 0.500000
+Ni 1.000000
+d 1.000000
+illum 2