UV Visualizer Shader

This shader allows you to visualize a mesh's UV mapping within the Unity Editor. It displays UV coordinated as RGB colors on the mesh. The UV coordinates map to the R and G color channels respectively. UV coordinates can be anything between 0 and 1. Since the coordinates only map to the R and G channels, the B channel is always 0 and A is 1. That being said, you're mostly only gonna see colors created by mixing R and G channels. So...

• (0,0) = Black
• (1,0) = Red
• (0,1) = Green
• (1,1) = Yellow ...and ofcourse, if you toggle the ShowTexture option ON, the color of the texture will be blended with the UV Visualization colors.

Usage instructions:

• Import this shader into your project. Create a material and select the UV Visualizer shader in the shader menu.
• Shader Properties:
  • 
  • Main Texture - The texture that you want to apply to the mesh. If left blank, a white texture is used.
  • Show Texture - Whether to show the texture on the mesh or not.
  • Texture Blend Mode - The method to use to blend the UV VIsualization colors and Main Texture. Blend modes available: Multiply, Add, Subtract, Divide, LerpMin and LerpMax. If Show Texture is false, Texture Blend Mode is ignored.

Here are some examples with primitive meshes, showing the UV Visualizer shader in use:

In each example you'll see two meshes, left using the UV Visualizer shader, right using the Standard shader.

• Cylinder (ShowTexture:False)
• Cube (ShowTexture:False)
• Cube (ShowTexture:True, BlendMode:Multiply)
• Cube (ShowTexture:True, BlendMode:Add)

Here are some examples with complex meshes, showing the UV Visualizer shader in use:

• Mixamo Model (ShowTexture:False)
• Shield (ShowTexture:True, BlendMode:Add)
• Skull (ShowTexture:True, BlendMode:Multiply)

NOTE: There are other ways to see the UV mapping of a mesh, for example, you could open up the 3D model in a 3D modelling program like Blender, Maya, etc. This shader is meant for situations where you wish to get an idea of what a mesh's UV mapping looks like, right within the Unity Editor. This shader is meant to be used for debugging purposes, not really meant to be used within a game, but you can use it however you'd like.