CanvasShadow & UnityUI sample scenes

[Species521]

Overview

The CanvasShadow and UnityUI sample scenes have been updated by adding descriptive texts, 3D models and button/slider functionality in order to enhance the scenes' instructiveness.

Changes

CanvasShadow

• the number of shadow examples have been increased to visualize the full spectrum of customizations
• plain button plates have been replaced with textures in order to show that this is an option
• descriptive text panel was added
• top row buttons are clickable

UnityUI

• a textured tumbling 3D model of a lightbulb has been added
• the slider has been hooked to the lightbulb's glass & filament materials in order to control the bulb's brightness
• the three buttons below have been mapped to the lightbulb material's color value in order to switch light colors

Verification

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[Cameron-Micka]

Wow, a huge improvement to these samples. Thank you! Added some commends below and inline comments.

Could you reduce the size of the button textures (and make them a power of two). Just to keep our package size down.

Could you also make the lightbulb texture smaller (looks like the panda should be too :D)?

[Cameron-Micka]

Thank you for the updates! Could you make these last two changes, then this is ready to merge.

1. Can you revert these two files?
   

2. Could you duplicate this backplate material from another sample and put it in this sample so it doesn't appear missing when imported in isolation?
   

[Cameron-Micka]

Looks perfect!