Add project files.

samples/demo.mtl

@@ -0,0 +1,30 @@
+newmtl dev_grid
+Kd 0.86 0.86 0.88
+
+newmtl dev_wall
+Kd 0.78 0.75 0.68
+
+newmtl dev_orange
+Kd 1 0.55 0.15
+
+newmtl dev_blue
+Kd 0.25 0.5 1
+
+newmtl dev_green
+Kd 0.3 0.8 0.4
+
+newmtl dev_red
+Kd 0.9 0.25 0.25
+
+newmtl dev_gray
+Kd 0.5 0.5 0.52
+
+newmtl dev_trigger
+Kd 1 0.4 0.1
+
+newmtl dev_clip
+Kd 0.4 0.4 1
+
+newmtl dev_water
+Kd 0.2 0.4 0.9
+