Add rendering pipeline

Add render script that renders all of the bottles into the graphics
directory.

render.cmd

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+REM Pass the path to blender as the first argument
+%1 --background --python-exit-code 1 model.blend --python render.py

render.py

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+import bpy
+
+
+base_collection = bpy.data.scenes["Base"].view_layers["RenderLayer"].layer_collection
+highlight_collection = bpy.data.scenes["Toon Highlight"].view_layers["RenderLayer"].layer_collection
+shadows_collection = bpy.data.scenes["Toon Shadows"].view_layers["RenderLayer"].layer_collection
+
+def set_exclude(color, model, value):
+    base_collection.children[color].exclude = value
+    highlight_collection.children[f"Highlight {model}"].exclude = value
+    shadows_collection.children[f"Shadows {model}"].exclude = value
+
+
+def render_bottle(color, model, output):
+    set_exclude(color, model, False)
+    bpy.data.scenes["Base"].render.filepath = output
+    bpy.ops.render.render(write_still=True)
+    set_exclude(color, model, True)
+
+bottles = [
+    ["Red", "Cone", "//src/graphics/red.png"],
+    ["Green", "Cube", "//src/graphics/green.png"],
+    ["Black", "Spiked", "//src/graphics/black.png"],
+    ["Cyan", "Sphere", "//src/graphics/cyan.png"],
+    ["Purple", "Cylinder", "//src/graphics/purple.png"],
+    ["Yellow", "Hexagon", "//src/graphics/yellow.png"],
+    ["White", "Tubes", "//src/graphics/white.png"],
+]
+
+# Set active scene so the highlights/shadows isn't accidentally rendered
+bpy.context.window.scene = bpy.data.scenes["Base"]
+
+# Reset visibility of all bottles
+for color, model, output in bottles:
+    set_exclude(color, model, True)
+
+# Render the bottles
+for color, model, output in bottles:
+    render_bottle(color, model, output)
+
+print("Done!")