Render multiple objects

assets/cube.obj

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+# Simple textured cube
+# 8 vertices, 6 faces (12 triangles), per-face UVs
+
+o Cube
+
+# Positions
+v -1.0 -1.0  1.0
+v  1.0 -1.0  1.0
+v  1.0  1.0  1.0
+v -1.0  1.0  1.0
+v -1.0 -1.0 -1.0
+v  1.0 -1.0 -1.0
+v  1.0  1.0 -1.0
+v -1.0  1.0 -1.0
+
+# Texture coordinates
+vt 0.0 0.0
+vt 1.0 0.0
+vt 1.0 1.0
+vt 0.0 1.0
+
+# Normals
+vn  0.0  0.0  1.0
+vn  0.0  0.0 -1.0
+vn  1.0  0.0  0.0
+vn -1.0  0.0  0.0
+vn  0.0  1.0  0.0
+vn  0.0 -1.0  0.0
+
+# Faces (front, back, right, left, top, bottom)
+# Each face uses two triangles: (0,1,2) and (0,2,3)
+
+# Front (+Z)
+f 1/1/1 2/2/1 3/3/1
+f 1/1/1 3/3/1 4/4/1
+
+# Back (-Z)
+f 6/1/2 5/2/2 8/3/2
+f 6/1/2 8/3/2 7/4/2
+
+# Right (+X)
+f 2/1/3 6/2/3 7/3/3
+f 2/1/3 7/3/3 3/4/3
+
+# Left (-X)
+f 5/1/4 1/2/4 4/3/4
+f 5/1/4 4/3/4 8/4/4
+
+# Top (+Y)
+f 4/1/5 3/2/5 7/3/5
+f 4/1/5 7/3/5 8/4/5
+
+# Bottom (-Y)
+f 5/1/6 6/2/6 2/3/6
+f 5/1/6 2/3/6 1/4/6