ShaderLab 属性，特性声明

• Numbers and Sliders

name ("display name", Range (min, max)) = number
name ("display name", Float) = number
name ("display name", Int) = number

• Colors and Vectors

name ("display name", Color) = (number,number,number,number)
name ("display name", Vector) = (number,number,number,number)

• Textures

name ("display name", 2D) = "defaulttexture" {}
name ("display name", Cube) = "defaulttexture" {}
name ("display name", 3D) = "defaulttexture" {}

Attribute

• [HideInInspector]
  does not show the property value in the material inspector.

• [NoScaleOffset]
  material inspector will not show texture tiling/offset fields for texture properties with this attribute.

• [Normal]
  indicates that a texture property expects a normal-map.

• [HDR]
  indicates that a texture property expects a high-dynamic range (HDR) texture.

• [Gamma]
  indicates that a float/vector property is specified as sRGB value in the UI (just like colors are), and possibly needs conversion according to color space used. See Properties in Shader Programs.

• [PerRendererData]
  indicates that a texture property will be coming from per-renderer data in the form of a MaterialPropertyBlock. Material inspector changes the texture slot UI for these properties.

https://docs.unity3d.com/Manual/SL-Properties.html